Publications by authors named "Guohua Zhao"

229 Publications

Highly efficient photoelectrochemical removal of atrazine and the mechanism investigation: Bias potential effect and reactive species.

J Hazard Mater 2021 08 18;415:125681. Epub 2021 Mar 18.

School of Chemical Science and Engineering, and Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China. Electronic address:

In this work, efficient photoelectrochemical (PEC) removal of atrazine, one of the most widely used chemical herbicides in the world, was obtained by adjusting the bias potential applied on the photo-anode, and the optimal atrazine removal efficiency reached 96.8% at the potential of 0.2 V vs. SCE in 2 h with the reaction rate constant of 1.72 h. The results indicated at the optimal potential, the separation efficiency of photo-generated holes and electrons was the highest with the lowest electron transfer resistance. Mechanism investigation revealed that superoxide radicals, hydroxyl radicals and holes all contributed to atrazine degradation, and the bias potential on the photo-anode could influence atrazine removal efficiency by changing the generation amount and distribution of the reactive oxygen species (ROS). It was presumed the nucleophilicity of superoxide radical played an important role in atrazine dechlorination, leading to the enhanced removal efficiency. However, the bias potential did not show obvious influence on the degradation intermediates of atrazine in the PEC system compared with that in photocatalytic oxidation, since it was actually an electro-assisted photocatalytic process in the potential range investigated. The work will provide fundamental basis for establishing efficient PEC system for pollutant remediation experimentally and theoretically.
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http://dx.doi.org/10.1016/j.jhazmat.2021.125681DOI Listing
August 2021

The Impact of Bariatric Surgery on Renal Function: a Retrospective Analysis of Short-Term Outcomes.

Obes Surg 2021 Jun 1. Epub 2021 Jun 1.

The Second Gastric & Intestinal Department, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian City, 116033, Liaoning Province, China.

Purpose: Obesity and diabetes mellitus are now leading causes of chronic kidney disease. Our study investigated the effects of bariatric surgery on estimated glomerular filtration (eGFR) and urinary microalbumin/creatinine ratio (ACR) in morbidly obese patients.

Materials And Methods: The clinical materials for patients who underwent bariatric surgery were retrospectively analyzed with a 6-month follow-up period between January 1, 2018, and June 1, 2020. The eGFR (ml/min) was calculated using the Cockcroft-Gault formula equation. The urinary ACR was measured during the follow-up. Body mass index (BMI, kg/m), percent weight loss (%WL), systolic blood pressure (SBP), and diastolic blood pressure (DBP) were recorded during the follow-up.

Results: Sixty-one patients who underwent bariatric surgery-laparoscopic Roux-en-Y gastric bypass (LRYGB; n = 22) and laparoscopic sleeve gastrectomy (LSG; n = 39)-were included in this study. The eGFR of both groups decreased at the follow-up outpatient visits (p < 0.001), although eGFR did not differ between the two groups. Unexpectedly, the ACR increased in the first month after LSG (p < 0.01) but decreased with a descending trend with no significant difference (p > 0.05) throughout the remaining follow-up period. Interestingly, ACR showed a descending trend with no significant difference during the follow-up in the LRYGB group (p > 0.05). The SBP and DBP decreased after bariatric surgery, with no significant difference between the two groups (p > 0.05).

Conclusion: Bariatric surgery is associated with improvements in postoperative renal function 6 months following surgery. The different alterations in ACR following LSG and LRYGB procedures demonstrate the underlying mechanism.
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http://dx.doi.org/10.1007/s11695-021-05366-1DOI Listing
June 2021

Fp-GAN with Fused Regional Features for the Synthesis of High-Quality Paired Medical Images.

J Healthc Eng 2021 26;2021:6678031. Epub 2021 Apr 26.

Collaborative Innovation Center for Internet Healthcare, Zhengzhou University, Zhengzhou 450052, China.

The use of medical image synthesis with generative adversarial networks (GAN) is effective for expanding medical samples. The structural consistency between the synthesized and actual image is a key indicator of the quality of the synthesized image, and the region of interest (ROI) of the synthesized image is related to its usability, and these parameters are the two key issues in image synthesis. In this paper, the fusion-ROI patch GAN (Fp-GAN) model was constructed by incorporating a priori regional feature based on the two-stage cycle consistency mechanism of cycleGAN. This model has improved the tissue contrast of ROI and achieved the pairwise synthesis of high-quality medical images and their corresponding ROIs. The quantitative evaluation results in two publicly available datasets, INbreast and BRATS 2017, show that the synthesized ROI images have a DICE coefficient of 0.981 ± 0.11 and a Hausdorff distance of 4.21 ± 2.84 relative to the original images. The classification experimental results show that the synthesized images can effectively assist in the training of machine learning models, improve the generalization performance of prediction models, and improve the classification accuracy by 4% and sensitivity by 5.3% compared with the cycleGAN method. Hence, the paired medical images synthesized using Fp-GAN have high quality and structural consistency with real medical images.
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http://dx.doi.org/10.1155/2021/6678031DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8099524PMC
April 2021

Food Chemistry of Selenium and Controversial Roles of Selenium in Affecting Blood Cholesterol Concentrations.

J Agric Food Chem 2021 May 27;69(17):4935-4945. Epub 2021 Apr 27.

College of Food Science, Southwest University, No. 2 Tiansheng Road, Chongqing 400715, People's Republic of China.

Hypercholesterolemia, one of the major risk factors of cardiovascular diseases, is a worldwide public health problem. Nutraceuticals and phytochemicals are attracting attention as a result of their cholesterol-lowering ability and minimal side effects. Among them, selenium (Se) is on the list. The amount of Se in foods varies by region. Se-enriched fertilizers and feeds can raise the Se content in plants and animals, while some processing methods decrease food Se content. This review summarizes recent studies on (1) the content distribution of Se in foods and factors influencing Se-enriched foods, (2) the bioavailability and metabolism of Se, and (3) the role of Se in affecting blood cholesterol and cholesterol metabolism. Although the hypocholesterolemic effect of Se is equivocal, its cholesterol-lowering activity may be more remarkable when the Se supplementation is 200 μg/day or the baseline blood total cholesterol is above 200 mg/dL in humans with low Se status.
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http://dx.doi.org/10.1021/acs.jafc.1c00784DOI Listing
May 2021

A novel cholesterol-free mayonnaise made from Pickering emulsion stabilized by apple pomace particles.

Food Chem 2021 Aug 3;353:129418. Epub 2021 Mar 3.

College of Food Science, Southwest University, Chongqing 400715, PR China; Chongqing Engineering Research Centre for Sweet Potato, Chongqing 400715, PR China. Electronic address:

Yolk-based mayonnaise is widely used to enhance the flavor of daily food. In view of health concerns on dietary cholesterol, novel mayonnaises (NMs) were made from Pickering emulsions stabilized by apple pomace particles using micro-jet (MJ-NM), ultrasonic (US-NM), and high-speed-shear homogenizer (HSS-NM), respectively. NMs and commercial mayonnaise (CM) were comparatively investigated in appearance, droplet size, rheological, tribological, and stability properties. NMs presented almost identical appearances to CM except for color. The droplets' size in NMs were larger than CM. Both NMs and CM demonstrated shear-thinning behavior and solid-like properties. Among mayonnaises, MJ-NM was demonstrated the most rapid thixotropy recovery with its storage modulus recovered within 51 s. Although both NMs and CM were of mixed tribology nature, NMs presented lower oral lubricity. Upon 210-day storage, both NMs and CM exhibited excellent stabilities without any oil-water separation occurred. Overall, the Pickering emulsions are promising and health alternatives for traditional mayonnaise.
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http://dx.doi.org/10.1016/j.foodchem.2021.129418DOI Listing
August 2021

Utilization of pomelo peels to manufacture value-added products: A review.

Food Chem 2021 Jul 15;351:129247. Epub 2021 Feb 15.

College of Food Science, Southwest University, Chongqing 400715, People's Republic of China; Chongqing Engineering Research Centre for Regional Foods, Chongqing 400715, People's Republic of China. Electronic address:

Pomelo peel as a by-product from pomelo consumption is rich in various nutrients and functional compounds, while most of the by-product is disposed as wastes. The utilization of pomelo peels could not only result in valued-added products/ingredients, but also reduce the environmental threats. By mainly reviewing the recent articles, pomelo peels could be directly used to produce candied pomelo peel, tea, jams, etc. Additionally, functional components (essential oils, pectin, polyphenols, etc.) could be extracted from pomelo peels and applied in food, pharmaceutical and chemical fields. The extraction methods exerted important influences on the composition, physicochemical properties, bioactivities and structures of the resultant fractions. Furthermore, pomelo peel was exploited to make adsorbents, bioethanol, etc. For the future investigations, the functionality- or bioactivity-oriented regimes to recovery valuable components from pomelo peel should be developed in an economic, effective and eco-friendly way and their applicability in large-scale production should be addressed.
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http://dx.doi.org/10.1016/j.foodchem.2021.129247DOI Listing
July 2021

Accelerated Fe Regeneration in an Effective Electro-Fenton Process by Boosting Internal Electron Transfer to a Nitrogen-Conjugated Fe(III) Complex.

Environ Sci Technol 2021 05 22;55(9):6042-6051. Epub 2021 Feb 22.

School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Key Laboratory of Yangtze River Water Environment, Tongji University, Siping Road 1239, Shanghai 200092, P. R. China.

The regeneration rate of Fe from Fe dictates the performance of the electro-Fenton (EF) process, represented by the amount of produced hydroxyl radicals (·OH). Current strategies for the acceleration of Fe regeneration normally require additional chemical reagents, to vary the redox potential of Fe/Fe. Here, we report an attempt at using the intrinsic property of the electrode to our advantage, i.e., nitrogen-doped carbon aerogel (NDCA), as a reducing agent for the regeneration of Fe without using foreign reagents. Moreover, the pyrrolic N in NDCA provides unpaired electrons through the carbon framework to reduce Fe, while the graphitic and pyridinic N coordinate with Fe to form a C-O-Fe-N bond, facilitating electron transfer from both the external circuit and pyrrolic N to Fe. Our Fe/NDCA-EF system exhibits a 5.8 ± 0.3 times higher performance, in terms of the amount of generated ·OH, than a traditional Fenton system using the same Fe concentration. In the subsequent reaction, the Fe/NDCA-EF system demonstrates 100.0% removal of dimethyl phthalate, 3-chlorophenol, bisphenol A, and sulfamethoxazole with a low specific energy consumption of 0.17-0.36 kW·h·g. Furthermore, 90.1 ± 0.6% removal of dissolved organic carbon and 83.3 ± 0.9% removal of NH-N are achieved in the treatment of domestic sewage. The purpose of this work is to present a novel strategy for the regeneration of Fe in the EF process and also to elucidate the role of different N species of the carbonaceous electrode in contributing to the redox cycle of Fe/Fe.
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http://dx.doi.org/10.1021/acs.est.0c08018DOI Listing
May 2021

Selective Electrocatalytic Reduction of Oxygen to Hydroxyl Radicals via 3-Electron Pathway with FeCo Alloy Encapsulated Carbon Aerogel for Fast and Complete Removing Pollutants.

Angew Chem Int Ed Engl 2021 04 22;60(18):10375-10383. Epub 2021 Mar 22.

Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China.

We reported the selective electrochemical reduction of oxygen (O ) to hydroxyl radicals ( OH) via 3-electron pathway with FeCo alloy encapsulated by carbon aerogel (FeCoC). The graphite shell with exposed -COOH is conducive to the 2-electron reduction pathway for H O generation stepped by 1-electron reduction towards to OH. The electrocatalytic activity can be regulated by tuning the local electronic environment of carbon shell with the electrons coming from the inner FeCo alloy. The new strategy of OH generation from electrocatalytic reduction O overcomes the rate-limiting step over electron transfer initiated by reduction-/oxidation-state cycle in Fenton process. Fast and complete removal of ciprofloxacin was achieved within 5 min in this proposed system, the apparent rate constant (k ) was up to 1.44±0.04 min , which is comparable with the state-of-the-art advanced oxidation processes. The degradation rate almost remains the same after 50 successive runs, suggesting the satisfactory stability for practical applications.
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http://dx.doi.org/10.1002/anie.202101804DOI Listing
April 2021

The sodium/D-dimer ratio predicts the effect of first-line chemotherapy and prognosis in patients with advanced gastric cancer.

Am J Transl Res 2021 15;13(2):792-802. Epub 2021 Feb 15.

Department of Medical Imaging, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University No. 44 Xiaoheyan Road, Dadong District, Shenyang 110042, Liaoning Province, China.

Background: Gastric cancer (GC) is one of the most common cancers worldwide. The survival time of patients with advanced gastric cancer (AGC) is shortened. We evaluated the role of the sodium/fibrinogen ratio (SFR) and sodium/D-dimer ratio (SDR) in predicting the first-line chemotherapy response, progression-free survival (PFS), and overall survival (OS) of patients with AGC.

Methods: A total of 304 patients with AGC were retrospectively reviewed. SDR only was selected as a potential prognostic marker for the subsequent studies in this study. Based on the cut-off value of the SDR, the patients were divided into high-SDR and low-SDR groups and investigated for their clinicopathological features, first-line chemotherapy effects and clinical outcomes.

Results: The cut-off value based on the SDR was 282.22, and the patients were divided into low-SDR (SDR ≤ 282.22) and high-SDR (SDR > 282.22) groups. The disease control rate was higher in the high-SDR group than in the low-SDR group (91.1% vs. 82.3%; = 0.036). Patients with a high SDR had a longer median PFS and OS than those with a low SDR (PFS: 206.0 vs. 134.0 days, < 0.001; OS: 435.0 vs. 295.5 days, < 0.001). The SDR was an independent prognostic indicator in the multivariable analysis of PFS ( < 0.001) and OS ( = 0.004). In subgroup analyses, among the patients with normal sodium and D-dimer levels, SDR was still a reliable prognostic indicator of PFS and OS in patients with AGC (all ≤ 0.001).

Conclusions: This study suggests that the SDR may serve as a prognostic indicator for chemotherapy outcome, PFS and OS for patients with AGC receiving first-line chemotherapy.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7868830PMC
February 2021

Recommendations for the diagnosis and treatment of paroxysmal kinesigenic dyskinesia: an expert consensus in China.

Transl Neurodegener 2021 Feb 16;10(1). Epub 2021 Feb 16.

Department of Neurology, Affiliated Hospital of Guilin Medical University, Guilin Medical University; Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guangxi Clinical Research Center for Neurological Diseases, Affiliated Hospital of Guilin Medical University, Guilin Medical University; Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, China.

Paroxysmal dyskinesias are a group of neurological diseases characterized by intermittent episodes of involuntary movements with different causes. Paroxysmal kinesigenic dyskinesia (PKD) is the most common type of paroxysmal dyskinesia and can be divided into primary and secondary types based on the etiology. Clinically, PKD is characterized by recurrent and transient attacks of involuntary movements precipitated by a sudden voluntary action. The major cause of primary PKD is genetic abnormalities, and the inheritance pattern of PKD is mainly autosomal-dominant with incomplete penetrance. The proline-rich transmembrane protein 2 (PRRT2) was the first identified causative gene of PKD, accounting for the majority of PKD cases worldwide. An increasing number of studies has revealed the clinical and genetic characteristics, as well as the underlying mechanisms of PKD. By seeking the views of domestic experts, we propose an expert consensus regarding the diagnosis and treatment of PKD to help establish standardized clinical evaluation and therapies for PKD. In this consensus, we review the clinical manifestations, etiology, clinical diagnostic criteria and therapeutic recommendations for PKD, and results of genetic analyses in PKD patients performed in domestic hospitals.
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http://dx.doi.org/10.1186/s40035-021-00231-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7885391PMC
February 2021

A highly sensitive and group-targeting aptasensor for total phthalate determination in the environment.

J Hazard Mater 2021 06 19;412:125174. Epub 2021 Jan 19.

Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Ministry of Education, Tongji Hospital, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China. Electronic address:

As the most widely used and typical kind of plasticizers, phthalate esters (PAEs) have become one of the most common environmental pollutants in the world. Therefore, it is necessary to develop a rapid and convenient method for determining the total amount of PAEs. Herein, a molecularly tailored broad-spectrum aptamer that can recognize multiple similarly structured total amounts of PAEs (TP) and bind them with high affinity has been successfully fabricated. Mfold (multiple folding) secondary structure simulation and molecular truncation were both utilized to obtain the most effective binding region from the parental full-length (39-mer) aptamer. The results show that the PAE-binding affinity of the truncated 24-mer aptamer produced by removing nonessential flanking nucleotides was improved by 1.5-fold. The linear range of TP detection is 0.003-10 μg/L, and the limit of detection is 1 ng/L. Notably, our study provides new insights into the group-targeting identification of certain pollutants and determination of their total amounts, exhibiting great potential for practical applications.
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http://dx.doi.org/10.1016/j.jhazmat.2021.125174DOI Listing
June 2021

Complete chloroplast genome of (Cyatheaceae).

Mitochondrial DNA B Resour 2020 Jul 23;5(3):2938-2939. Epub 2020 Jul 23.

School of Life Sciences, South China Agricultural University, Guangzhou, China.

Illumina sequencing was employed to determine the complete chloroplast (cp) genome sequence of (), which is a relict fern. The cp genome of is indeed a circular DNA molecule with 156,659 bp. It includes an inverted repeats (IRs) pair with 24,011 bp each and two single-copy regions with 86,196 bp and 22,441 bp, respectively. Additionally, the genome contains 117 unique genes encoding 85 proteins, 28 tRNAs, four rRNAs. Pseudogenes of ycf66 and trnT-UGU are also detected in this genome.Bayesian phylogenetic tree strongly supports the deduction that belongs to Cyatheaceae. To date, this is the first cp genome for the genus
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http://dx.doi.org/10.1080/23802359.2020.1787893DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7782704PMC
July 2020

Effect of temperature and pH on the encapsulation and release of β-carotene from octenylsuccinated oat β-glucan micelles.

Carbohydr Polym 2021 Mar 5;255:117368. Epub 2020 Nov 5.

College of Food Science, Southwest University, Chongqing, 400715, PR China; Chongqing Engineering Research Center of Regional Foods, Chongqing, 400715, PR China. Electronic address:

Effect and working mechanism of temperature and pH on encapsulation and release of β-carotene from octenylsuccinated-oat-β-glucan-micelles (OSβG-Ms) were investigated. The stability and solubility of β-carotene, and changes in surface hydrophilicity, core hydrophobicity, and size of β-carotene-loaded-OSβG-Ms were determined. When exposed to temperature (25-45 °C) and pH (4.5-8.5), β-carotene solubilization changed in parabolic manners. Size and absolute zeta-potential of β-carotene-loaded-OSβG-Ms decreased with temperature, while they gave parabolic changing patterns with pH. Those results were ascribed to their hydrophilicity, hydrophobicity, and core/shell compactness via regulating molecule mobility, orientation, and interactions by temperature/pH. The higher temperature concluded with higher β-carotene release, while a U-shaped release profile was observed with pH. Besides its diffusion, erosion-induced shrinking and collapsing of OSβG-Ms favored β-carotene release at pH 1.2-4.5, which was replaced by swelling-induced structural-relaxation at pH 6.8-8.5. The results were favourable in controlling the behavior of β-carotene-loaded-OSβG-Ms by selectively applying environmental parameters.
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http://dx.doi.org/10.1016/j.carbpol.2020.117368DOI Listing
March 2021

A Novel Algorithm for Breast Mass Classification in Digital Mammography Based on Feature Fusion.

J Healthc Eng 2020 22;2020:8860011. Epub 2020 Dec 22.

Department of Radiology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China.

Prompt diagnosis of benign and malignant breast masses is essential for early breast cancer screening. Convolutional neural networks (CNNs) can be used to assist in the classification of benign and malignant breast masses. A persistent problem in current mammography mass classification via CNN is the lack of local-invariant features, which cannot effectively respond to geometric image transformations or changes caused by imaging angles. In this study, a novel model that trains both texton representation and deep CNN representation for mass classification tasks is proposed. Rotation-invariant features provided by the maximum response filter bank are incorporated with the CNN-based classification. The fusion after implementing the reduction approach is used to address the deficiencies of CNN in extracting mass features. This model is tested on public datasets, CBIS-DDSM, and a combined dataset, namely, mini-MIAS and INbreast. The fusion after implementing the reduction approach on the CBIS-DDSM dataset outperforms that of the other models in terms of area under the receiver operating curve (0.97), accuracy (94.30%), and specificity (97.19%). Therefore, our proposed method can be integrated with computer-aided diagnosis systems to achieve precise screening of breast masses.
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http://dx.doi.org/10.1155/2020/8860011DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7772044PMC
December 2020

First annual report of Chinese haemovigilance network.

Vox Sang 2021 Jan 10. Epub 2021 Jan 10.

Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College, Chengdu, China.

Background And Objectives: Haemovigilance involves surveillance of the whole chain of blood transfusion with the aim of identifying adverse events and errors and improving outcomes for patients. The Chinese Haemovigilance Network, founded in August 2017, has witnessed a rapid development in the last three years.

Materials And Methods: Based on the 1,022 cases in 2019, we analysed the adverse reactions (ARs) by blood component, clinical outcome severity and demography of recipients in an effort to publish the first annual Chinese haemovigilance report.

Results: The AR rate associated with blood transfusion in 2019 was 0·2% in China. Allergic reactions and FNHTR were the two most common adverse symptoms, accounting for 97·7% of the reports. Two-thirds of the TAD, AHTR and TACO and all of the HTR and DHTR resulted in hospitalization or prolongation of hospitalization. Plasma and AP were usually associated with allergic reaction (81·1%), whereas red cells more commonly cause FNHTR (68·8%) and all the AHTR, HTR, DSTR and DHTR. 84·1% of patients were aged 16 years or over, and the majority of the TAD, AHTR, TACO and HTR involved patients aged 60 and above. The ratio of serious adverse reactions (SARs) was 8·2%. Allergic reaction and FNHTR were top two (85·7%) SARs. The first case related to anti-D immunoglobulin was detected in a DHTR report.

Conclusion: This report provides the world's first overview of transfusion-related adverse reactions in China. This report is useful for better understanding transfusion risks in China.
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http://dx.doi.org/10.1111/vox.13059DOI Listing
January 2021

Selective Photoelectrocatalytic Removal for Group-Targets of Phthalic Esters.

Environ Sci Technol 2021 02 6;55(4):2618-2627. Epub 2021 Jan 6.

School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, China.

The development of a selective removal method for group-targets of pollutants under the inhibition of nontoxic organic interferents is of great importance in environmental science. A novel TiO photoelectrode functionalized with dummy templates (PS-PAE-TiO) is designed, exhibiting group-targeting selectivity for nine phthalate ester (PAE) analogs. In total, 90-99% of PAEs were removed from 30 μg L in actual wastewater (chemical oxygen demand, 14.5 mg O L). The selectivity for PAEs originated from preferential enrichment close to the PS-PAE-TiO surface result in a twofold improvement in the apparent kinetic constant. The specific sites can be attributed to phenyl rings and -ester carbonyl groups through the molecular recognition process. The intermediates were analyzed quantitatively, and a degradation pathway with lower toxicity was proposed, excluding ring-hydroxylated phthalates. Almost 100% of the estrogenic activity and acute aquatic toxicity were eliminated and the genotoxicity was reduced by 92.5%, which was about 40% higher than that at the nonselective photoanode. An enhanced removal at the PS-PAE-TiO photoanode with better economic benefits was confirmed, saving energy consumption by 2.5 kWh m per order than that at the nonselective anode. The advanced removal method with group-targeting selective capability can provide a propagable strategy for the removal of a class of homologues from complex aqueous systems.
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http://dx.doi.org/10.1021/acs.est.0c07106DOI Listing
February 2021

The Genes of , , and Play an Important Role in Controlling Carotenoid and Aroma Volatile Apocarotenoid Accumulation of Apricot Fruit.

Front Plant Sci 2020 18;11:607715. Epub 2020 Dec 18.

College of Food Science, Southwest University, Chongqing, China.

Carotenoids are important coloration molecules and indispensable component of the human diet. And these compounds confer most of the apricot fruit yellow or orange color. In China, fruit of some apricot cultivar present light-yellow color but strong flowery flavor, however, the chemical mechanism remains unknown. Here, carotenoids and aroma volatile apocarotenoids (AVAs) in three skin types of apricot cultivars (orange, yellow, and light-yellow skinned) were determined by HPLC and GC-MS, respectively. And the transcript levels of carotenogenic genes were analyzed by qRT-PCR. The orange-skinned cultivars "Hongyu" and "Danxing" fruit presented the most abundant total carotenoid, β-carotene and specific α-carotene contents, and β-carotene (52-77%) increased to become the dominant carotenoid during fruit ripening. The transcript levels of lycopene β-cyclase () and β-carotene hydroxylase () sharply increased during ripening. The yellow-skinned cultivars "Sulian No. 2" and "Akeyaleke" fruit contained lower levels of total carotenoids and β-carotene but were rich in phytoene. The light-yellow coloration of "Baixing" and "Luntaixiaobaixing" fruit was attributed to low amounts of total carotenoids, lutein, and neoxanthin and an absence of β-cryptoxanthin, but high level of aroma volatile apocarotenoids (AVAs) such as β-ionone were detected in these cultivars fruit, accompanied by low transcript levels of carotene hydroxylase () and zeaxanthin epoxidase () but high levels of carotenoid cleavage dioxygenase 1 () and . Correlation analysis showed that the expression level of negatively correlated with carotenoid accumulation but positively with AVAs production. These collected results suggest that both carotenoid biosynthesis and degradation are important for apricot coloration and aroma formation. CYP, ZEP, CCD1, and CCD4 may be the key regulation points for carotenoid and AVAs accumulation in apricot fruit, which provide important targets for quality-oriented molecular breeding.
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http://dx.doi.org/10.3389/fpls.2020.607715DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7775601PMC
December 2020

Preferential and efficient degradation of phenolic pollutants with cooperative hydrogen-bond interactions in photocatalytic process.

Chemosphere 2021 Apr 22;269:129404. Epub 2020 Dec 22.

School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, Siping Road 1239, Shanghai, 200092, PR China. Electronic address:

Phenolic pollutants as highly toxic and hazardous organics are widely generated from industrial and domestic process. Phenolic pollutants with different hydroxyl position (catechol, resorcinol, hydroquinone, phenol) were preferentially and efficiently oxidized in photocatalytic process (PC) by designing boron-doped TiO (B-TiO).The key role for enhancing the photocatalytic activity of B-TiO was the formation of abundant Ti species. The formation of Ti-O weakened the competitive adsorption of HO in aqueous solution and favored the formation of cooperative hydrogen bond on the surface of B-TiO, leading to enhanced adsorption of phenolic pollutants. The degradation rate constant of B-TiO (k) was regardless of the corresponding oxidation potential of phenolic pollutants. The k for catechol in photocatalytic process was as high as 3.46 min, which was 18.2, 1.6 times higher than that of biodegradation and ozonation methods, respectively. Of note, the preferential removal mechanism of phenolic pollutants was elucidated by in-situ attenuated total reflectance (ATR)-IR and density functional theory calculation (DFT). The results were helpful for developing new preferential oxidation technologies in HO∙-mediated process for selectively removing low concentration but highly toxic pollutants.
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http://dx.doi.org/10.1016/j.chemosphere.2020.129404DOI Listing
April 2021

Research on hot rolling scheduling problem based on Two-phase Pareto algorithm.

PLoS One 2020 28;15(12):e0241077. Epub 2020 Dec 28.

Department of Mechanical Engineering, Hubei University of automotive technology, Shiyan, China.

Under the background of excess capacity and energy saving in iron and steel enterprises, the hot rolling batch scheduling problem based on energy saving is a multi-objective and multi constraint optimization problem. In this paper, a hybrid multi-objective prize-collecting vehicle routing problem (Hybrid Price Collect Vehicle Routing Problem, HPCVRP) model is established to ensure minimum energy consumption, meet process rules, and maximize resource utilization. A two-phase Pareto search algorithm (2PPLS) is designed to solve this model. The improved MOEA/D with a penalty based boundary intersection distance (PBI) algorithm (MOEA/D-PBI) is introduced to decompose the HPCVRP in the first phase. In the second phase, the multi-objective ant colony system (MOACS) and Pareto local search (PLS) algorithm is used to generate approximate Pareto-optimal solutions. The final solution is then selected according to the actual demand and preference. In the simulation experiment, the 2PPLS is compared with five other algorithms, which shows the superiority of 2PPLS. Finally, the experiment was carried out on actual slab data from a steel plant in Shanghai. The results show that the model and algorithm can effectively reduce the energy consumption in the process of hot rolling batch scheduling.
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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0241077PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7769619PMC
January 2021

SAP-cGAN: Adversarial learning for breast mass segmentation in digital mammogram based on superpixel average pooling.

Med Phys 2021 Mar 10;48(3):1157-1167. Epub 2021 Jan 10.

Collaborative Innovation Center for Internet Healthcare, Zhengzhou University, Zhengzhou, 450052, China.

Purpose: Breast mass segmentation is a prerequisite step in the use of computer-aided tools designed for breast cancer diagnosis and treatment planning. However, mass segmentation remains challenging due to the low contrast, irregular shapes, and fuzzy boundaries of masses. In this work, we propose a mammography mass segmentation model for improving segmentation performance.

Methods: We propose a mammography mass segmentation model called SAP-cGAN, which is based on an improved conditional generative adversarial network (cGAN). We introduce a superpixel average pooling layer into the cGAN decoder, which utilizes superpixels as a pooling layout to improve boundary segmentation. In addition, we adopt a multiscale input strategy to enable the network to learn scale-invariant features with increased robustness. The performance of the model is evaluated with two public datasets: CBIS-DDSM and INbreast. Moreover, ablation analysis is conducted to evaluate further the individual contribution of each block to the performance of the network.

Results: Dice and Jaccard scores of 93.37% and 87.57%, respectively, are obtained for the CBIS-DDSM dataset. The Dice and Jaccard scores for the INbreast dataset are 91.54% and 84.40%, respectively. These results indicate that our proposed model outperforms current state-of-the-art breast mass segmentation methods. The superpixel average pooling layer and multiscale input strategy has improved the Dice and Jaccard scores of the original cGAN by 7.8% and 12.79%, respectively.

Conclusions: Adversarial learning with the addition of a superpixel average pooling layer and multiscale input strategy can encourage the Generator network to generate masks with increased realism and improve breast mass segmentation performance through the minimax game between the Generator network and Discriminator network.
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http://dx.doi.org/10.1002/mp.14671DOI Listing
March 2021

Efficient photocatalytic removal of phthalates easily implemented over a bi-functional {001}TiO surface.

Chemosphere 2021 Jan 4;263:128257. Epub 2020 Sep 4.

School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Key Laboratory of Yangtze River Water Environment, Tongji University, Shanghai, 200092, People's Republic of China. Electronic address:

It is stubborn to remove the lowly concentrated phthalic acid esters (PAEs) that usually coexist with other highly concentrated but low-toxic pollutants in municipal sewage. Herein, we report a novel strategy for completely removing the PAEs over a bi-functional {001}TiO surface (with highly exposed {001} facet), which not only serve as functional sites to specifically adsorb the target PAEs pollutants, but also contribute to an enhanced oxidation ability. The adsorption behavior of PAEs on {001}TiO is analyzed deeply through kinetic experiments combining with in situ ATR-FTIR spectroscopy and theoretical calculations. The results reveal that the adsorption capacities of PAEs on {001}TiO are about 4-5 times higher than that on TiO, both of which follow the pseudo-second-order and Langmuir model. This is mainly attributed to the interfacial Lewis Acid-Base Pair between {001} facet Ti sites and CO of PAEs. Benefitting from the specific adsorption capability toward target pollutant and enhanced oxidation ability of {001} facets, nearly 100% of DMP or DEP in simulated wastewater can be eliminated by {001}TiO within 2 h illumination, and the relevant degradation rate constants (k) (3.67 h for DMP and 2.19 h for DEP) are 5.73 and 3.08 folds higher than that of pure TiO, respectively. In the application of municipal wastewater, nearly 76% of DMP and 85% DEP can be eliminated by {001}TiO within 2 h illumination, which are nearly 3-6 fold higher than that of pure TiO.
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http://dx.doi.org/10.1016/j.chemosphere.2020.128257DOI Listing
January 2021

In situ monitoring of the selective adsorption mechanism of small environmental pollutant molecules on aptasensor interface by attenuated total reflection surface enhanced infrared absorption spectroscopy (ATR-SEIRAS).

J Hazard Mater 2021 02 12;403:123953. Epub 2020 Sep 12.

School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China. Electronic address:

In situ monitoring of the interactions and properties of pollutant molecules at the aptasensor interface is being a very hot and interesting topic in environmental analysis since its charming molecule level understanding of the mechanism of environmental biosensors. Attenuated total reflection surface enhanced infrared absorption spectroscopy (ATR-SEIRAS) provides a unique and convenient technique for the in situ analysis, but is not easy for small molecules. Herein, an ATR-SEIRAS platform has been successfully developed to in situ monitor the selective adsorption mechanism of small pollutant molecule atrazine (ATZ) on the aptasensor interface by characteristic N‒H peak of ATZ for the first time. Based on the constructed ATR-SEIRAS platform, a thermodynamics model is established for the selective adsorption of ATZ on the aptasensor interface, described with Langmuir adsorption with a dissociation constant of 1.1 nM. The adsorption kinetics parameters are further obtained with a binding rate constant of 8.08×10 M s. A promising and feasible platform has therefore successfully provided for the study of the selective sensing mechanism of small pollutant molecules on biosensors interfaces, further broadening the application of ATR-SEIRAS technology in the field of small pollutant molecules.
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http://dx.doi.org/10.1016/j.jhazmat.2020.123953DOI Listing
February 2021

Assessing the NOTCH2NLC GGC expansion in essential tremor patients from eastern China.

Brain 2021 02;144(1):e1

Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China.

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http://dx.doi.org/10.1093/brain/awaa348DOI Listing
February 2021

Decomposition and adaptive weight adjustment method with biogeography/complex algorithm for many-objective optimization.

PLoS One 2020 9;15(10):e0240131. Epub 2020 Oct 9.

Department of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan, China.

In the EMO (evolutionary multi-objective, EMO) algorithm, MaOPs (many objective optimization problems, MaOPs) are sometimes difficult to keep the balance of convergence and diversity. The decomposition based EMO developed for MaOPs has been proved to be effective, and BBO/Complex (the biogeography based optimization for complex system, BBO/Complex) algorithm is a low complexity algorithm. In this paper, a decomposition and adaptive weight adjustment based BBO/Complex algorithm (DAWA-BBO/Complex) for MaOPs is proposed. First, a new method based on crowding distance is designed to generate a set of weight vectors with good uniformly. Second, an adaptive weight adjustment method is used to solve MaOPs with complex Pareto optimal front. Subsystem space obtains a non-dominated solution by a new selection strategy. The experimental results show that the algorithm is superior to other new algorithms in terms of convergence and diversity in DTLZ benchmark problems. Finally, the algorithm is used to solve the problem of NC (numerical control machine, NC) cutting parameters, and the final optimization result is obtained by AHP (Analytic Hierarchy Process, AHP) method. The results show that the cutting speed is 10.8m/min, back cutting depth is 0.13mm, the cutting time is 504s and the cutting cost is 22.15yuan. The proposed algorithm can effectively solve the practical optimization problem.
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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0240131PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7546505PMC
December 2020

Impact of perioperative allogeneic blood transfusion on the long-term prognosis of patients with different stage tumors after radical resection for hepatocellular carcinoma.

Eur J Surg Oncol 2021 Mar 21;47(3 Pt B):620-627. Epub 2020 Sep 21.

Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China. Electronic address:

Background: We previously reported that perioperative allogeneic blood transfusion (PABT) did not affect long-term survival after radical resection for hepatocellular carcinoma (HCC). This study aimed to investigate the effects of PABT on the prognosis of HCC patients with different stage tumors.

Methods: Patients with primary HCC who underwent curative liver resection between 2003 and 2012 were retrospectively enrolled and divided into the early-stage (stage I) and non-early-stage (stages II, III and IV) groups. The impacts of PABT on the long-term prognosis of patients in different groups after resection were investigated using propensity score matching (PSM) and multivariable Cox regression analyses.

Results: We enrolled 426 HCC patients, including 53 matched pairs of patients with early-stage tumors and 51 matched pairs of patients with non-early-stage tumors. Survival analyses of the patients with early-stage tumors showed that the recurrence-free survival (RFS) and overall survival (OS) rates of the transfusion group were significantly worse than those of the nontransfusion group both before and after PSM. Multivariable Cox analyses identified that PABT was an independent predictor of RFS and OS of the patients with early-stage tumors. However, survival analyses of the propensity-matched patients with non-early-stage tumors showed no significant differences in RFS and OS rates between the transfusion and nontransfusion groups (p = 0.296; p = 0.472).

Conclusions: This study demonstrates that PABT has negative impacts on the long-term prognosis of patients with early-stage tumors after radical resection of HCC but has no impact on the long-term prognosis of patients with non-early-stage tumors.
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http://dx.doi.org/10.1016/j.ejso.2020.09.021DOI Listing
March 2021

Pseudocapacitive Ti-Doped Niobium Pentoxide Nanoflake Structure Design for a Fast Kinetics Anode toward a High-Performance Mg-Ion-Based Dual-Ion Battery.

ACS Appl Mater Interfaces 2020 Oct 12;12(42):47539-47547. Epub 2020 Oct 12.

Center of Super-Diamond and Advanced Film (COSDAF) and Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China.

Magnesium-ion batteries (MIBs) have received increasing attention for next-generation energy storage recently because of the natural abundance, high capacity, and dendrite-free deposition of Mg. However, their applications are hindered by irreversible Mg anode plating in conventional electrolytes and the lack of cathode materials, demonstrating high working voltage, satisfactory Mg diffusivity, and long cycling life. In this work, we first developed a novel magnesium-ion based dual-ion battery (Mg-DIB) by utilizing expanded graphite as the cathode and Ti-doped niobium pentoxide nanoflakes (Ti-NbO NFs) as the anode. The Ti-NbO NFs showed hierarchical structures of microspheres with diameters of 4-5 μm assembled by nanoflakes. For the first time, the Mg-ion storage mechanism in Ti-NbO NFs was investigated. Benefiting from the hierarchical structure design and pseudocapacitive intercalation behavior of Mg ions, the Ti-NbO NF anode exhibited fast Mg-ion diffusion. Consequently, the Mg-DIB exhibited a high discharge capacity of 93 mA h g at 1 C (1 C corresponding to 100 mA g), along with good long-term cycling performance with a capacity retention of 79% at 3 C after 500 cycles. The Mg-DIB also demonstrated a capacity retention of 77% at 5C, indicating its good rate performance. Moreover, the Mg-DIB exhibited a high discharge medium voltage of ∼1.83 V, thus enabling a high energy density of 174 W h kg at 183 W kg and 122 W h kg at a high power density of 845 W kg, among the best of the reported magnesium-ion full batteries. Our work provides a new strategy to improve the performance of MIBs and other rechargeable batteries.
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http://dx.doi.org/10.1021/acsami.0c13045DOI Listing
October 2020

Facile Construction of a Copper-Containing Covalent Bond for Peroxymonosulfate Activation: Efficient Redox Behavior of Copper Species via Electron Transfer Regulation.

ACS Appl Mater Interfaces 2020 Sep 11;12(38):42790-42802. Epub 2020 Sep 11.

School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China.

Heterogeneous catalysis can be enhanced through the construction of effective atom connection for rapid electron transport on the catalyst surface. Hence, this study proposed a new strategy for electron transfer regulation to facilitate redox cycle of Cu(II)/Cu(I). The objective was achieved by successful construction of copper-containing covalent bond through the in situ growth of porous g-CN with oxygen dopants and nitrogen defects (O-CN) on CuAlO substrate ([email protected]). On the basis of X-ray absorption fine structure (XAFS) and other characterization results, the facilitated redox behavior of copper species by electron transfer regulation was ascribed to the formation of a C-O-Cu bond on the porous-rich superficial of the catalyst; these covalent C-O-Cu bonds shortened the migration distance of electrons between Cu(II) and Cu(I) via Cu(I)-O-C-O-Cu(II) bridge. The construction of copper-containing covalent bonds in the catalyst resulted in efficient PMS activation for a rapid redox cycle of Cu(II)/Cu(I), triggering a series of reactions involving the continuous production of three highly active species (SO, OH and O). The rapid diffusion and transportation of the generated active species from porous structures directly attack typical pharmaceutically active compounds (PhACs), achieving superior catalytic performance. This study provides a new routine to construct a C-O-Cu bond for PMS activation by regulating the electron transfer to accelerate the redox behavior of copper species for environmental remediation.
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http://dx.doi.org/10.1021/acsami.0c11268DOI Listing
September 2020

Highly Characteristic Adsorption Based on Single Crystal {001}-TiO Surface Molecular Recognition Promotes Enhanced Oxidation.

ACS Appl Mater Interfaces 2020 Sep 25;12(35):39273-39281. Epub 2020 Aug 25.

Institute of Translational Research, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China.

Exploring the adsorption and selective removal mechanism of target pollutants on the catalytic interface is an important research topic in the field of environmental sewage treatment. However, the molecular recognition based on the surface of single crystals is still unclear. Single crystal molecularly imprinted TiO (001-MI-TiO) with a highly exposed {001} plane was prepared by a hydrothermal method to characteristically adsorb and degrade phenol. The kinetics of phenol oxidation on 001-MI-TiO was 12.93 times that of polycrystal nonimprinted TiO. The phenol adsorption quantity of 001-MI-TiO was 1.68 times that of the polycrystal molecularly imprinted TiO (MI-TiO). Compared with MI-TiO, the significantly increased removal of phenol on 001-MI-TiO mainly attributed to the enhanced adsorption quantity and better photocatalytic performance. The recognition mechanism of phenol on the 001-MI-TiO during the adsorption process was studied using attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR), which indicated enhanced adsorption of phenol when compared with MI-TiO. The recognition between the phenol molecule and the imprinted sites mainly relied on the hydrogen bond between the π bond of the benzene ring and the hydroxyl group on the surface of TiO. Besides, the interferent ATR-FTIR results showed that the single crystal surface can significantly reduce noncharacteristic adsorption, indicating good selectivity for the targets. In addition, the degradation intermediates during the photocatalytic process were further analyzed by in situ infrared technology.
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http://dx.doi.org/10.1021/acsami.0c11101DOI Listing
September 2020

Rice nitrogen use efficiency does not link to ammonia volatilization in paddy fields.

Sci Total Environ 2020 Nov 22;741:140433. Epub 2020 Jun 22.

National Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China. Electronic address:

Ammonia (NH) volatilization is a major pathway of nitrogen (N) losses from paddy fields, and could be potentially mitigated by cultivation of high nitrogen use efficiency (high-NUE) rice cultivars. However, the relationship between NUE and NH volatilization has not been validated under field conditions. A field experiment was conducted to evaluate the impact of four rice cultivars with different NUE [Wuyunjing 23 (W23), Zhendao 11 (Z11), Wuyujing 3 (W3), and Aoyusi 386 (A386)] on NH volatilization, as well as the related mechanisms. Two high-NUE rice cultivars W23 and Z11 was not more effective in reducing total NH volatilization from the paddy field compared to cultivar A386 with the lowest NUE. Cultivar A386 had 12.7-17.8% and 35.7-54.1% lower NH volatilization than other three rice cultivars at tillering fertilization stage (TFS) and panicle fertilization stage (PFS), respectively, mainly due to its greater shoot N accumulation, root biomass and volume at TFS and its greater shoot biomass, leaf area index and shoot N accumulation at PFS. There was no significant difference in NH volatilization among W23, Z11 and W3 at TFS. However, premature senescence phenomenon at later growth stages of A386 eventually led to its lowest NUE among the four rice cultivars. Our results suggest that NUE of rice does not link to NH volatilization from paddy fields. In order to make high-NUE rice cultivars also effective in mitigating NH volatilization, future breeding works should aim to improve N uptake capability and canopy structure at early tillering and panicle development stages while prevent premature senescence of rice plants to maintain high yields.
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http://dx.doi.org/10.1016/j.scitotenv.2020.140433DOI Listing
November 2020

Micronized apple pomace as a novel emulsifier for food O/W Pickering emulsion.

Food Chem 2020 Nov 13;330:127325. Epub 2020 Jun 13.

College of Food Science, Southwest University, Chongqing 400715, People's Republic of China; Chongqing Engineering Research Centre for Sweet Potato, Chongqing 400715, People's Republic of China. Electronic address:

In order to develop natural, food-grade particles as emulsifiers, wet-milled has been conducted to obtain apple pomace particles in varying sizes. Structural characteristics, physicochemical properties and Pickering emulsifying potential of the particle in different sizes were investigated. Particle size of apple pomace was gradually reduced from 12.9 μm to 550 nm during 8 h milling. With the decrease of particles size, the morphology became less angular. Meanwhile, some insoluble dietary fibers transformed into soluble ones, and the wettability tended to be hydrophilic, therefore, the water and oil holding capacities and free-radical-scavenging capacities increased. The properties of Pickering emulsions stabilized by wet-milled apple pomace particles in different sizes were then investigated. The decrease of particle size resulted in the size reduction of emulsion droplets, and gave rise to enhance gel-like properties and antioxidative activities of emulsions. The results demonstrated promising prospect of wet-milled apple pomace particles as emulsifiers in food industry.
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http://dx.doi.org/10.1016/j.foodchem.2020.127325DOI Listing
November 2020