26 results match your criteria corncob powder

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Effects of a Bulking Agent on the Protein:Carbohydrate Ratio, Bioconversion, and Cost-effectiveness of a Larval Diet for Anastrepha ludens (Diptera: Tephritidae).

J Econ Entomol 2022 Mar 28. Epub 2022 Mar 28.

El Colegio de la Frontera Sur, Laboratorio de Biotecnología Ambiental y Agroecológica, Carretera Antiguo Aeropuerto km 2.5, Tapachula, Chiapas, México.

Although the bulking agent is categorized as 'inert', it could modify protein bioavailability and nutritional quality. In this study, the main goal was to determine if the bulking agent modified the protein:carbohydrate (P:C) ratio and bioconversion from diet biomass to larval biomass of Anastrepha ludens. The diet was altered only by modifying the type of bulking agent (corncob powder, coconut fiber, carrot fiber, oatmeal) added without changing the composition and concentration of the other components in the formulation. Read More

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Denitrification performance of sulfur-based autotrophic denitrification and biomass‑sulfur-based mixotrophic denitrification in solid-phase denitrifying reactors using novel composite filters.

Sci Total Environ 2022 Jun 12;823:153826. Epub 2022 Feb 12.

Institute of Process Equipment and Environmental Engineering, School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, PR China. Electronic address:

Both the elemental sulfur-based autotrophic denitrification (ESAD) and the biomass‑sulfur-based mixotrophic (simultaneous autotrophic and heterotrophic) denitrification processes (BSMD) are efficient methods for removing nitrate from wastewater. However, a comparative analysis of the denitrification capacity of the BSMD and ESAD in the packed bed reactors is still lacking. In this paper, corncob powder was selected as the biomass source to prepare biomass‑sulfur-based composite filter (BSCF) for the BSMD process. Read More

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Offering soybean molasses adsorbed to agricultural by-products improved lactation performance through modulating plasma metabolic enzyme pool of lactating cows.

Food Sci Nutr 2021 Dec 13;9(12):6447-6457. Epub 2021 Oct 13.

Feng Yi (Shanghai) Biotechnology R&D Center co. LTD Shanghai China.

Background: Agricultural by-products, such as corncob powder (CRP), wheat bran (WB), rice husk (RH), defatted bran (DB), and soybean hulls (SH), were widely used as ruminant feed. However, the combination effect of soybean molasses mixed with agricultural by-products on cow lactating performance remains poorly understood.

Methods: fermentation simulation technique was used to select the high ruminal fermentation performance of agricultural by-products mixed with soybean molasses. Read More

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December 2021

Characterization of Cellulose-Chitosan-Based Materials from Different Lignocellulosic Residues Prepared by the Ethanosolv Process and Bleaching Treatment with Hydrogen Peroxide.

ACS Omega 2021 Sep 23;6(35):22791-22802. Epub 2021 Aug 23.

The Joint Graduate School for Energy and Environment (JGSEE), King Mongkut's University of Technology Thonburi, Prachauthit Road, Bangmod, Bangkok 10140, Thailand.

Cellulose-based composites are promising biomaterials with potent applications in absorbents, cosmetics, and healthcare industries. In this study, the cellulose fractions from various agricultural residues, including bagasse (BG), rice straw (RS), corncob (CC), and palm fiber (PF), were prepared by the organosolv process using 70% v/v ethanol, followed by bleaching and forming with chitosan powder. Organosolv treatment at 180 °C of BG, RS, and PF and at 190 °C of CC for 60 min using HSO as the catalyst was optimal for high cellulose recovery (87. Read More

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September 2021

Biochemical composite material using corncob powder as a carrier material for ureolytic bacteria in soil cadmium immobilization.

Sci Total Environ 2022 Jan 21;802:149802. Epub 2021 Aug 21.

Environmental Engineering Program, Guangdong Technion - Israel Institute of Technology, Shantou 515063, China. Electronic address:

Corncob powder possessing its superiority in environmental sustainability and cost, was approved with strong capability of being a replacement of biochar in facilitating the microbial carbonate precipitation process. In this study, the ureolytic bacterial strain Bacillus sp. WA isolated from a pre-acquired metal contaminated soil in Guiyu, China, was showed to be well attached on the surfaces of corncob powder, indicating the carrier's role as a durable shelter for bacterial cells. Read More

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January 2022

Exploration and verification of the feasibility of the sulfur-based autotrophic denitrification integrated biomass-based heterotrophic denitrification systems for wastewater treatment: From feasibility to application.

Chemosphere 2022 Jan 23;287(Pt 1):131998. Epub 2021 Aug 23.

Institute of Process Equipment and Environmental Engineering, School of Mechanical Engineering and Automation, Northeastern University, Shenyang, 110004, PR China. Electronic address:

The sulfur-based autotrophic denitrification (SAD) and the solid organic carbon-based denitrification processes are both efficient techniques to remove nitrate from wastewater, and the hydrogen ions generated by the SAD process would be consumed in the heterotrophic denitrification process. Therefore, it is possible to improve the denitrification capacity when the solid organic carbon was added into a SAD reactor. In this study, corncob powder and sawdust powder were selected as solid organic carbon sources, and the sulfur-based autotrophic denitrification integrated biomass-based heterotrophic denitrification system was formed (SBD). Read More

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January 2022

Real-Time Measurement of Cellobiose and Glucose Formation during Enzymatic Biomass Hydrolysis.

Anal Chem 2021 06 20;93(21):7732-7738. Epub 2021 May 20.

Biocatalysis and Biosensor Laboratory, Department of Food Science and Technology, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria.

Enzymatic hydrolysis of lignocellulosic biomass for biofuel production relies on complex multi-enzyme ensembles. Continuous and accurate measurement of the released key products is crucial in optimizing the industrial degradation process and also investigating the activity and interaction between the involved enzymes and the insoluble substrate. Amperometric biosensors have been applied to perform continuous cellobiose measurements during the enzymatic hydrolysis of pure cellulose powders. Read More

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A Remixed-Fermentation Technique for the Simultaneous Bioconversion of Corncob C6 and C5 Sugars to Probiotic Bacillus subtilis.

Authors:
Xutong Ma Yong Xu

Appl Biochem Biotechnol 2021 Aug 30;193(8):2580-2590. Epub 2021 Mar 30.

Key Laboratory of Forestry Genetics & Biotechnology, Nanjing Forestry University, Ministry of Education, Nanjing, 210037, People's Republic of China.

The probiotic strain of Bacillus subtilis presents a promising application potential for the value-added bio-utilization of lignocellulosic carbohydrates. By the combined acidolysis pretreatment and enzymatic hydrolysis, hemicellulose and cellulose constituents of corncob were efficiently converted respectively into fermentable C5 and C6 sugars, mainly including xylose and glucose. B. Read More

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Enhancement in xylonate production from hemicellulose pre-hydrolysate by powdered activated carbon treatment.

Bioresour Technol 2020 Nov 30;316:123944. Epub 2020 Jul 30.

Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, People's Republic of China; Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, Nanjing 210037, People's Republic of China.

Xylonic acid can be produced with high-yield from hemicelullosic xylose, which accounts for 25% of the total sugars in lignocellulosic material. The key barrier associated with efficient bio-oxidation of hemicellulosic xylose to xylonic acid is the serious foam formed in downstream air-aerated and agitated bioreaction process, which caused by the high viscosity of concentrated pre-hydrolysate. Powdered activated carbon treatment can selectively absorb the non-sugar compounds with relatively low losses of xylose, which is beneficial for the valuable xylose derivatives production. Read More

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November 2020

Mass Rearing, Quality Parameters, and Bioconversion in Drosophila suzukii (Diptera: Drosophilidae) for Sterile Insect Technique Purposes.

J Econ Entomol 2020 06;113(3):1097-1104

Programa Moscafrut SADER-SENASICA, Subdirección de Desarrollo de Métodos, Camino a Cacaotales s/n 30860, Metapa de Domínguez, Chiapas, México.

The spotted wing drosophila, Drosophila suzukii Matsumura, has emerged as a major invasive insect pest of small and stone fruits in both the Americas and Europe in the last decade. Females oviposit in ripening fruit, and significant economic losses can occur. Control measures are mainly associated with the use of pesticides, but the sterile insect technique (SIT), an ecologically friendly pest-specific method, could be used against this species. Read More

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Cohesive strategy and energy conversion efficiency analysis of bio-hythane production from corncob powder by two-stage anaerobic digestion process.

Bioresour Technol 2020 Mar 8;300:122746. Epub 2020 Jan 8.

Henan Agricultural University, Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, PR China. Electronic address:

In order to maximize the substrate conversion, co-production of hydrogen and methane from two-stage anaerobic digestion has attracted wide attention. In two-stage fermentation process, the cohesive strategy is considered as a key indicator for bio-hythane yield. In this work, corncob powder was utilized as raw material. Read More

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Enhanced cellulase and reducing sugar production by a new mutant strain Trichoderma harzianum EUA20.

J Biosci Bioeng 2020 Feb 24;129(2):242-249. Epub 2019 Sep 24.

School of Life Sciences and Chemical Technology, Ngee Ann Polytechnic, 535 Clementi Road, 599489, Singapore. Electronic address:

Trichoderma harzianum EU2-77 was a mutant strain of the wild-type strain T. harzianum NP13a isolated in Singapore. A multi-mutagenesis one-screening (MMOS) method was developed to further improve strain EU2-77 and a new mutant EUA20 was obtained. Read More

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February 2020

Carbohydrates-rich corncobs supported metal-organic frameworks as versatile biosorbents for dye removal and microbial inactivation.

Carbohydr Polym 2019 Oct 2;222:115042. Epub 2019 Jul 2.

College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an, 710021, China; Limerick Pulp and Paper Centre, University of New Brunswick, Fredericton, E3B 5A3, New Brunswick, Canada.

In this work, biodegradable cellulose-based biosorbents (MOFs/OCBs) with dual function of dye removal and microbial inactivation were fabricated by in situ anchoring metal-organic frameworks (MOFs) on the TEMPO oxidized corncobs (OCBs). Results showed that delignification and oxidation can develop the OCBs with more cellulose content, carboxyl groups and specific surface area, thus facilitating the deposition of MOFs. The porous and carbohydrate-rich OCBs can serve as supports and stabilizers for MOFs, allowing for enhanced stability and recyclability of MOFs powders. Read More

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October 2019

Improving the thermostability and catalytic efficiency of GH11 xylanase PjxA by adding disulfide bridges.

Int J Biol Macromol 2019 May 22;128:354-362. Epub 2019 Jan 22.

Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China; School of Science, Beijing Technology and Business University, No. 11, Fucheng Road, Beijing 100048, China. Electronic address:

In order to increase the thermostability and catalytic efficiency of acidophilic GH11 xylanase, two disulfide bonds were introduced into crucial region of the enzyme. The xylanase PjxA, from Penicillium janthinellum MA21601, has attracted considerable attention due to its favorable acid-resistance; however, its poor thermostability and low enzymatic hydrolysis efficiency limit its application. In this study, two disulfide bonds were introduced into crucial regions of three recombined xylanases (DB-s1s3, DB-s1s4, and DB-s3s4). Read More

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Expression and Characteristics of Two Glucose-Tolerant GH1 β-glucosidases From YIM 77502 for Promoting Cellulose Degradation.

Front Microbiol 2018 18;9:3149. Epub 2018 Dec 18.

State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.

The bioconversion of lignocellulose in various industrial processes, such as biofuel production, requires the degradation of cellulose. YIM 77502 is an aerobic, Gram-positive actinomycete that can efficiently degrade crystalline cellulose by extracellular cellulases. Genomic analysis of identified 9 cellulase and 11 β-glucosidase genes that could potentially encode proteins that digest cellulose. Read More

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December 2018

The effect of pigment matrix, temperature and amount of carrier on the yield and final color properties of spray dried purple corn (Zea mays L.) cob anthocyanin powders.

Food Chem 2017 Jul 18;227:376-382. Epub 2017 Jan 18.

Department of Food Science and Technology, The Ohio State University, 110 Parker Food Science and Technology Building, 2015 Fyffe Road, Columbus, OH 43210, USA. Electronic address:

Spray drying is an economic technique to produce anthocyanin-based colorants. High pigments yields with minimum color degradation are desirable to maximize quality and profits. This study evaluated the impacts of purple corncob (PCC) anthocyanin extraction matrices (hot water, 40% ethanol, C18 purified), drying inlet temperature (130, 150, 170°C) and amount of carrier (2%, 5%, 10% maltodextrin) on the yields and quality of PCC anthocyanin powders. Read More

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Bio-Inspired Hierarchical Nanofibrous Fe3O4-TiO2-Carbon Composite as a High-Performance Anode Material for Lithium-Ion Batteries.

ACS Appl Mater Interfaces 2016 Jul 29;8(27):17343-51. Epub 2016 Jun 29.

Department of Chemistry, Zhejiang University , Hangzhou, Zhejiang 310027, China.

A bioinspired hierarchical nanofibrous Fe3O4-TiO2-carbon composite was fabricated by employing natural cellulose substance (e.g., filter paper) as both the scaffold and the carbon source and showed improved electrochemical performances when it is employed as an anode material for lithium-ion batteries. Read More

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Corncob hydrolysate, an efficient substrate for Monascus pigment production through submerged fermentation.

Biotechnol Appl Biochem 2014 Nov-Dec;61(6):716-23. Epub 2014 Jun 26.

State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.

Monascus pigment has traditionally been produced by the fermentation of Monascus using rice powder or glucose as a culture substrate. Submerged fermentation can produce stable Monascus pigment yield and control the accumulation of the by-product, citrinin, which can then be more easily removed. To reduce the cost of Monascus submerged fermentation, the feasibility of corncob hydrolysate as an alternative substrate was investigated. Read More

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Persistence and degrading activity of free and immobilised allochthonous bacteria during bioremediation of hydrocarbon-contaminated soils.

Biodegradation 2013 Feb 4;24(1):1-11. Epub 2012 May 4.

Department of Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126, Milan, Italy.

Rhodococcus sp. and Pseudomonas sp. bioremediation experiments were carried out using free and immobilized cells on natural carrier material (corncob powder) in order to evaluate the feasibility of its use in the bioremediation of hydrocarbon-contaminated soils. Read More

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February 2013

High production of β-glucosidase by Aspergillus niger on corncob.

Appl Biochem Biotechnol 2012 Sep 26;168(1):58-67. Epub 2011 Jul 26.

College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.

Using low-cost raw material is an effective approach for reducing the cost of cellulolytic enzymes. The farmland waste corncob was found in this study to be the best carbon source for the production of β-glucosidase by Aspergillus niger. The maximum yield of β-glucosidase activity was 48. Read More

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September 2012

In situ detection of aromatic compounds with biosensor Pseudomonas putida cells preserved and delivered to soil in water-soluble gelatin capsules.

Anal Bioanal Chem 2011 May 21;400(4):1093-104. Epub 2010 Dec 21.

Systems Biology Program, Centro Nacional de Biotecnología, CSIC, Campus de Cantoblanco, Madrid, Spain.

While many types of bacteria have been engineered to produce an optical output in response to given analytes in a culture, their use for extensive, in situ monitoring of distinct chemical species in soil is hampered by a dearth of practicable spreading schemes. In this work, we report and validate a comprehensive system for the long-term preservation of Pseudomonas putida cells genetically designed for biosensing benzene, toluene, ethylbenzene, and xylenes (BTEX) in soil, along with a procedure to formulate, spread, and vigorously activate such bacteria at the desired site and occasion. To this end, various known lyoprotectants were tested for promoting the long-term maintenance of biosensor cells with quite variable outcomes. Read More

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Value addition to corncob: production and characterization of xylooligosaccharides from alkali pretreated lignin-saccharide complex using Aspergillus oryzae MTCC 5154.

Bioresour Technol 2009 Jan 13;100(2):991-5. Epub 2008 Aug 13.

Fermentation Technology and Bioengineering Department, Central Food Technological Research Institute, Mysore 570 020, Karnataka, India.

Comparison of various pretreatments such as mild alkali/acid treatments and pressure cooking of corncob to expose its lignin-saccharide complex has been carried out to enhance enzymatic hydrolysis of xylan to xylooligosaccharides (XOS). Scanning electron micrographs of lignin-saccharide complex of native and pretreated corncob powder showed that the complex was greatly altered during alkali pretreatment. Hydrolysis of alkali pretreated corncob powder using a commercial endoxylanase produced 81+/-1. Read More

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January 2009

Enhanced biodegradation of hexachlorocyclohexane (HCH) in contaminated soils via inoculation with Sphingobium indicum B90A.

Biodegradation 2008 Feb 27;19(1):27-40. Epub 2007 Mar 27.

Department of Zoology, University of Delhi, Delhi 110007, India.

Soil pollution with hexachlorocyclohexane (HCH) has caused serious environmental problems. Here we describe the targeted degradation of all HCH isomers by applying the aerobic bacterium Sphingobium indicum B90A. In particular, we examined possibilities for large-scale cultivation of strain B90A, tested immobilization, storage and inoculation procedures, and determined the survival and HCH-degradation activity of inoculated cells in soil. Read More

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February 2008

Pot and field studies on bioremediation of p-nitrophenol contaminated soil using Arthrobacter protophormiae RKJ100.

Environ Sci Technol 2005 May;39(9):3330-7

Institute of Microbial Technology, Sector 39-A, Chandigarh-160036, India.

Biodegradation of p-nitrophenol (PNP), a priority pollutant, was studied as a model system for bioremediation of sites contaminated with nitroaromatic/organic compounds. Bioremediation of PNP-containing soil was first carried out in pots using immobilized and free cells of Arthrobacter protophormiae RKJ100 in order to ascertain the role of a suitable carrier material. Results showed that stability of the introduced strain was enhanced upon immobilization and that the rate of PNP depletion decreased with increasing depth of soil. Read More

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Purification and characterization of an acetyl xylan esterase from Bacillus pumilus.

Appl Environ Microbiol 1998 Feb;64(2):789-92

Bacteriology Group, International Centre for Genetic Engineering and Biotechnology, Trieste, Italy.

Bacillus pumilus PS213 was found to be able to release acetate from acetylated xylan. The enzyme catalyzing this reaction has been purified to homogeneity and characterized. The enzyme was secreted, and its production was induced by corncob powder and xylan. Read More

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February 1998

Small-scale field trials of Bacillus sphaericus (strain 2362) formulations against Mansonia mosquitoes in Malaysia.

J Am Mosq Control Assoc 1991 Mar;7(1):24-9

Vector Control Research Project, School of Biological Sciences, Universiti Sains Malaysia, Penang.

Five formulations of Bacillus sphaericus (strain 2362) including aqueous suspension BSP 1, BSP 2, technical powder ABG 6184, corncob granules ABG 6185 (potencies 2 x 10(10), 2 x 10(7), 9.5 x 10(10), 5 x 10(10), 5 x 10(10) spore/g, respectively) and wettable powder ABG 6232 (1,000 BS ITU/mg) were tested against laboratory-cultured late third/early fourth instar larvae of Mansonia uniformis in floating screened cages in small plots at swampy ditches on Penang Island, Malaysia. Mean dosage/response values at 90% mortality levels were 6. Read More

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