8,011 results match your criteria residue polysaccharides

Guava ( L.) Leaves: Nutritional Composition, Phytochemical Profile, and Health-Promoting Bioactivities.

Foods 2021 Apr 1;10(4). Epub 2021 Apr 1.

Ginning Training Centre, ICAR-Central Institute for Research on Cotton Technology, Nagpur 440023, India.

(L.) belongs to the Myrtaceae family and it is an important fruit in tropical areas like India, Indonesia, Pakistan, Bangladesh, and South America. The leaves of the guava plant have been studied for their health benefits which are attributed to their plethora of phytochemicals, such as quercetin, avicularin, apigenin, guaijaverin, kaempferol, hyperin, myricetin, gallic acid, catechin, epicatechin, chlorogenic acid, epigallocatechin gallate, and caffeic acid. Read More

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Biosynthesis of d--l--Heptose in the Capsular Polysaccharides of .

Biochemistry 2021 Apr 26. Epub 2021 Apr 26.

Department of Biochemistry & Biophysics, Texas A&M University, College Station, Texas 77843, United States.

is the leading cause of food poisoning in the United States and Europe. The exterior cell surface of is coated with a capsular polysaccharide (CPS) that is essential for the maintenance and integrity of the bacterial cell wall and evasion of the host immune response. The identity and sequences of the monosaccharide components of the CPS are quite variable and dependent on the specific strain of . Read More

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Separation, characterization and hypoglycemic activity evaluation of a low molecular weight heteropolysaccharide from the fruiting body of .

Food Funct 2021 Apr;12(8):3493-3503

College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, P. R. China.

Edible mushrooms have potential in anti-diabetic phytotherapy. They are rich in natural compounds such as polysaccharides, which have been known to have antihyperlipidemic effects since ancient times. A polysaccharide fraction of PP80 and a contained low molecular-weight (Mw), water-soluble polysaccharide (PPW-1, Mw: 3. Read More

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Binary coagulation system (graphene oxide/chitosan) for polluted surface water treatment.

J Environ Manage 2021 Jun 7;288:112481. Epub 2021 Apr 7.

Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt; Misr University for Science and Technology (MUST), 6th of October City, Egypt.

In this study, chitosan (CS) is used as a natural coagulant aid alongside graphene oxide (GO) to remove turbidity and numerous pollutants from raw and artificially contaminated surface water. The coagulation capability of the system (GO/CS) was assessed with respect to a water sample's turbidity, pH, coagulant dose, settling velocity, and temperature. The presence of CS enhanced the coagulation capacity of GO at varied pH levels and no GO residue was detected in the water after the treatment. Read More

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Influence of wet oxidation pretreatment with hydrogen peroxide and addition of clarified manure on anaerobic digestion of oil palm empty fruit bunches.

Bioresour Technol 2021 Jul 23;332:125033. Epub 2021 Mar 23.

Bioproducts, Sciences and Engineering Laboratory, Washington State University Tricities, Biological Systems Engineering, Washington State University, United States.

Food and energy requirements are increasing globally, and the challenge is to meet these demands in a sustainable manner. Oil palm has a relatively high productivity, but produces the lignocellulosic residue of empty fruit bunches (OPEFB). In this study, wet oxidation pretreatment is utilized to overcome the recalcitrance of OPEFB during semi-continuous anaerobic digestion (AD) with between 19. Read More

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Co-production of polysaccharides, ginsenosides and succinic acid from Panax ginseng residue: A typical industrial herbal waste.

Bioresour Technol 2021 Jul 30;331:125073. Epub 2021 Mar 30.

Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16, Nanxiaojie, Dongzhimennei, Beijing 100700, PR China.

Co-production of polysaccharides, ginsenosides and succinic acid was achieved from Panax ginseng residue (PGR) in this study. Physico-chemical separation was first applied to recover the released polysaccharides and ginsenoside. Enzymatic hydrolysis was then conducted to covert the left PGR into mono-sugars which was following transformed into succinic acid by constructing a succinic acid-producing strain of Escherichia coli-ZW333. Read More

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Structural characterization and amelioration of sulfated polysaccharides from Ganoderma applanatum residue against CCl-induced hepatotoxicity.

Int Immunopharmacol 2021 Mar 31;96:107554. Epub 2021 Mar 31.

College of Life Science, Shandong Agricultural University, Taian 271018, PR China. Electronic address:

Natural polysaccharides and their derivatives have attracted academic attention due to their extensive physiological activities. However, the hepatoprotective effects against carbon tetrachloride (CCl) toxicity have not been well elucidated. The objectives of this study were to characterize the structural properties of sulfated Ganoderma applanatum residue polysaccharides (SGRP) and to evaluate their inhibitory effects on liver fibrosis caused by oxidative stress and inflammation. Read More

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Characterization of a polysaccharide from the medicinal lichen, Usnea longissima, and its immunostimulating effect in vivo.

Int J Biol Macromol 2021 Mar 30;181:672-682. Epub 2021 Mar 30.

College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, Zhejiang 316000, China. Electronic address:

A polysaccharide, CSL-0.1, was isolated from the medicinal lichen, Usnea longissima. CSL-0. Read More

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Effect of cellulose nanocrystals derived from Dunaliella tertiolecta marine green algae residue on crystallization behaviour of poly(lactic acid).

Carbohydr Polym 2021 Jun 3;261:117881. Epub 2021 Mar 3.

Department of Chemical Engineering, Indian Institute of Technology Guwahati (IITG), Assam, 781039, India. Electronic address:

Marine green algae biomass residue (ABR), a waste by-product of Dunaliella tertiolecta, left behind after the extraction of oil from the algal biomass, was utilized for the fabrication of cellulose nanocrystals (CNCs). The fabricated sulphuric acid hydrolysed CNCs had needle-like morphology, with dominant cellulose type I polymorph and a high crystallinity index of 89 %. ICP-MS elemental analysis confirmed the presence of a variety of minerals in the ABR. Read More

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Analytical implications of different methods for preparing plant cell wall material.

Carbohydr Polym 2021 Jun 25;261:117866. Epub 2021 Feb 25.

School of Natural and Environmental Sciences, Devonshire Building, Newcastle University, Newcastle-Upon-Tyne, NE1 7RU, UK. Electronic address:

Almost all plant cells are surrounded by a wall constructed of co-extensive networks of polysaccharides and proteoglycans. The capability to analyse cell wall components is essential for both understanding their complex biology and to fully exploit their numerous practical applications. Several biochemical and immunological techniques are used to analyse cell walls and in almost all cases the first step is the preparation of an alcohol insoluble residue (AIR). Read More

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Preparation and Gut Microbiota Modulatory Property of the Oligosaccharide Riclinoctaose.

J Agric Food Chem 2021 Mar 22;69(12):3667-3676. Epub 2021 Mar 22.

Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China.

In relation to available polysaccharides, oligosaccharides have a low molecular weight, less viscosity, and complete water solubility. These properties endow oligosaccharides with significant biological properties including the microbiota regulation ability. In this study, a homogeneous oligooctasaccharide, riclinoctaose, was biosynthesized from succinylglycan riclin by enzymatic degradation. Read More

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Recyclable nitrogen-containing chitin-derived carbon microsphere as sorbent for neonicotinoid residues adsorption and analysis.

Carbohydr Polym 2021 May 9;260:117770. Epub 2021 Feb 9.

Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China. Electronic address:

Chitin-derived three-dimensional nanomaterials has tremendous potential in pesticide residue analysis as an attractive green substitute for toxic solvents. The work presented herein focuses on constructing the environmentally friendly nitrogen-containing chitin-derived carbon microspheres (N-CCMP) for the efficient adsorption of neonicotinoid pesticides (NPs) including acetamiprid, clothianidin, imidacloprid and thiamethoxam. The N-CCMP displayed hierarchical porous structure, uniform size distribution, and excellent specific surface area of 680. Read More

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Characterization of selenized polysaccharides from Ribes nigrum L. and its inhibitory effects on α-amylase and α-glucosidase.

Carbohydr Polym 2021 May 3;259:117729. Epub 2021 Feb 3.

College of Art and Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China. Electronic address:

The polysaccharide from Ribes nigrum L. (RCP) was modified by nitric acid-sodium selenite method. After purification by Sepharose-6B, high purity native (PRCP) and three selenized polysaccharides (PRSPs) with different selenium contents were obtained. Read More

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Microbial dynamics in rearing trials of Hermetia illucens larvae fed coffee silverskin and microalgae.

Food Res Int 2021 Feb 18;140:110028. Epub 2020 Dec 18.

Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy.

In the present study, Hermetia illucens larvae were reared on a main rearing substrate composed of a coffee roasting byproduct (coffee silverskin, Cs) enriched with microalgae (Schizochytrium limacinum or Isochrysis galbana) at various substitution levels. The microbial diversity of the rearing substrates, larvae, and frass (excrement from the larvae mixed with the substrate residue) were studied by the combination of microbial culturing on various growth media and metataxonomic analysis (Illumina sequencing). High counts of total mesophilic aerobes, bacterial spores, presumptive lactic acid bacteria, coagulase-positive cocci, and eumycetes were detected. Read More

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February 2021

Spent brewer's yeast proteins and cell debris as innovative emulsifiers and carrier materials for edible oil microencapsulation.

Food Res Int 2021 Feb 28;140:109853. Epub 2020 Oct 28.

Department of Food Engineering, School of Food Engineering, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80, Campinas, SP, Brazil. Electronic address:

Spent brewer's yeast is a by-product rich in proteins, polysaccharides, and fibres. In addition to being nutritive, this material is available in large amounts and can be considered a cheap and sustainable alternative as a carrier material for microencapsulation. The objective of this work was to use the protein hydrolysate of spent brewer's yeast as an emulsifying agent and carrier material for the microencapsulation of sunflower oil by spray drying. Read More

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February 2021

Antioxidant and Hepatoprotective Effects of Acidic-Hydrolysis Residue Polysaccharides from Shiitake Culinary-Medicinal Mushroom Lentinus edodes (Agaricomycetes) in Mice.

Int J Med Mushrooms 2021 ;23(2):85-96

College of Life Sciences, Shandong Agricultural University, Tai'an 271018, People's Republic of China.

The present work was designed to investigate the antioxidant and hepatoprotective effects of acidic-hydrolysis Lentinus edodes residue polysaccharides (Ac-LRP) on lipopolysaccharide-induced liver injury in mice. Hepatoprotective effects were observed in liver treated with Ac-LRP at doses of 200, 400, and 600 mg/kg body weight, respectively. Activities of superoxide dismutase, glutathione peroxide, catalase, total antioxidant capacity, alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase and levels of total cholesterol, triglyceride, malondialdehyde, and lipid peroxidation in liver or serum samples were analyzed. Read More

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January 2021

High efficient degradation of glucan/glucomannan to cello-/mannan-oligosaccharide by endoglucanase via tetrasaccharide as intermediate.

Food Chem 2021 Jul 9;350:129175. Epub 2021 Feb 9.

State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China. Electronic address:

Here, we report an efficient endoglucanase from Aureobasidium pullulans (termed ApCel5A) was expressed in Pichia pastoris. ApCel5A shows two different enzyme activities of endoglucanase (1270 U/mg) and mannanase (31.2 U/mg). Read More

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Preparation of Low Molecular Weight Heparin from a Remodeled Bovine Intestinal Heparin.

J Med Chem 2021 02 15;64(4):2242-2253. Epub 2021 Feb 15.

Department of Chemistry & Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.

Bovine intestinal heparins are structurally distinct from porcine intestinal heparins and exhibit lower specific anticoagulant activity (units/mg). The reduced content of -sulfo, 3--sulfo glucosamine, the central and critical residue in heparin's antithrombin III binding site, is responsible for bovine intestinal heparin's reduced activity. Previous studies demonstrate that treatment of bovine intestinal heparin with 3--sulfotransferase in the presence of 3'-phosphoadenosine-5'-phosphosulfate afforded remodeled bovine heparin with an enhanced activity reaching the United States Pharmacopeia's requirements. Read More

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February 2021

Characterization of a novel polysaccharide from Moutan Cortex and its ameliorative effect on AGEs-induced diabetic nephropathy.

Int J Biol Macromol 2021 Apr 10;176:589-600. Epub 2021 Feb 10.

School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China. Electronic address:

This study aimed to investigate the structure of a new heteropolysaccharide (MC-Pa) from Moutan Cortex (MC), and its protection on diabetic nephropathy (DN). The MC-Pa composed of D-glucose and L-arabinose (3.31:2. Read More

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Insights into the dual cleavage activity of the GH16 laminarinase enzyme class on β-1,3 and β-1,4 glycosidic bonds.

J Biol Chem 2021 Feb 5:100385. Epub 2021 Feb 5.

Universidade de Sorocaba, Programa de Processo Tecnológicos e Ambientais, Sorocaba, SP, Brasil. Electronic address:

Glycoside hydrolases (GH) are involved in the degradation of a wide diversity of carbohydrates and present several biotechnological applications. Many GH families are composed of enzymes with a single well-defined specificity. In contrast, enzymes from the GH16 family can act on a range of different polysaccharides, including β-glucans and galactans. Read More

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February 2021

Novel galactofuranan and pyruvylated galactomannan in the cell wall of Clavibacter michiganensis subsp. michiganensis VKM Ac-1403.

Carbohydr Res 2021 Feb 23;500:108247. Epub 2021 Jan 23.

School of Biology,M. V. Lomonosov Moscow State University, Moscow, 119991,Russian Federation. Electronic address:

The cell wall of Clavibacter michiganensis subsp. michiganensis VKM Ас-1403 (family Microbacteriaceae, class Actinobacteria) contains two polysaccharides. The first one is neutral (1 → 6) linked galactofuranan in which every second galactofuranose residue in the main chain substituted at position 3 by side trisaccharide, β-D-GlcpNAc-(1 → 3)-α-L-Rhap-(1 → 2)-α-D-Fucp-(1 →. Read More

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February 2021

Isolation and Characterization of an Acidic, Salt-Tolerant Endoglucanase Cel5A from a Bacterial Strain Martelella endophytica YC6887 Genome.

Mol Biotechnol 2021 Apr 1;63(4):305-315. Epub 2021 Feb 1.

Division of Applied Life Science (BK21 Plus), Plant Molecular Biology and Biotechnology Research Centre, Gyeongsang National University, 501 Jinju-daero, Jinju, 52828, Republic of Korea.

A Martelella endophytica (M. endophytica) strain YC6887 was previously isolated from the roots of a halophyte, Rosa rugosa, which was sequenced and characterized. The genomic and proteomic analysis showed a carbohydrate-degrading enzyme, endoglucanase Cel5A which was further characterized. Read More

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Elucidation of interactions regulating conformational stability and dynamics of SARS-CoV-2 S-protein.

Biophys J 2021 03 21;120(6):1060-1071. Epub 2021 Jan 21.

Theoretical Molecular Science Laboratory, RIKEN Cluster for Pioneering Research, Wako, Japan; Computational Biophysics Research Team, RIKEN Center for Computational Science, Kobe, Japan; Laboratory for Biomolecular Function Simulation, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan. Electronic address:

The ongoing COVID-19 pandemic caused by the new coronavirus, SARS-CoV-2, calls for urgent developments of vaccines and antiviral drugs. The spike protein of SARS-CoV-2 (S-protein), which consists of trimeric polypeptide chains with glycosylated residues on the surface, triggers the virus entry into a host cell. Extensive structural and functional studies on this protein have rapidly advanced our understanding of the S-protein structure at atomic resolutions, although most of these structural studies overlook the effect of glycans attached to the S-protein on the conformational stability and functional motions between the inactive down and active up forms. Read More

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Fractionation, structural characteristics and immunomodulatory activity of polysaccharide fractions from asparagus (Asparagus officinalis L.) skin.

Carbohydr Polym 2021 Mar 16;256:117514. Epub 2020 Dec 16.

College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, PR China. Electronic address:

The physicochemical properties, structural features and structure-immunomodulatory activity relationship of pectic polysaccharides from the white asparagus (Asparagus officinalis L.) skin were systematically studied. Using sequential ethanol precipitation, five sub-fractions namely WASP-40, WASP-50, WASP-60, WASP-70 and WASP-80 with distinct degree of esterification (DE) and molecular weight (Mw) were obtained. Read More

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A regular fucan sulfate from Stichopus herrmanni and its peroxide depolymerization: Structure and anticoagulant activity.

Carbohydr Polym 2021 Mar 15;256:117513. Epub 2020 Dec 15.

State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China. Electronic address:

Marine sulfated polysaccharides have aroused widespread concern for their various structures and bioactivities. Peroxide depolymerization is a common strategy in analysis of structures and structure-activity relationships of polysaccharides. However, confirming the depolymerization process and exact structures of the degradation products is still a considerable challenge. Read More

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Features correlated to improved enzymatic digestibility of corn stover subjected to alkaline hydrogen peroxide pretreatment.

Bioresour Technol 2021 Apr 9;325:124688. Epub 2021 Jan 9.

State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; Department of Bioengineering, Qilu University of Technology, Jinan 250353, China.

As one of the leading pretreatment approaches, alkaline hydrogen peroxide (AHP) pretreatment can enhance the enzymatic digestibility of lignocellulose significantly. In this study, the glucan conversion of AHP pretreated corn stover (CS) without and with water-wash were 28.4% and 50. Read More

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FUT8 Alpha-(1,6)-Fucosyltransferase in Cancer.

Int J Mol Sci 2021 Jan 5;22(1). Epub 2021 Jan 5.

Institute of Biosciences, Newcastle University, Newcastle Upon Tyne NE1 3BZ, UK.

Aberrant glycosylation is a universal feature of cancer cells that can impact all steps in tumour progression from malignant transformation to metastasis and immune evasion. One key change in tumour glycosylation is altered core fucosylation. Core fucosylation is driven by fucosyltransferase 8 (FUT8), which catalyses the addition of α1,6-fucose to the innermost GlcNAc residue of N-glycans. Read More

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January 2021

Novel biorefining method for succinic acid processed from sugarcane bagasse.

Bioresour Technol 2021 Mar 26;324:124615. Epub 2020 Dec 26.

School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China.

Sugarcane bagasse (SCB) was pretreated with hot water (HLW), ethanol (ETH), and sodium hydroxide (SH). The obtained residuals were hydrolyzed and applied as carbon sources for succinic acid (SA) fermentation, the residue digestibility and SA conversion rate of alkali-pretreated residual were superior to others. Considering the characteristics of alkali pretreatment, enzymatic hydrolysis and succinic acid fermentation, a novel in-situ semi-simultaneous saccharification and co-fermentation (SSSCF) procedure for SA production from SCB was developed. Read More

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The 3--sulfation of heparan sulfate modulates protein binding and lyase degradation.

Proc Natl Acad Sci U S A 2021 01;118(3)

Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602;

Humans express seven heparan sulfate (HS) 3--sulfotransferases that differ in substrate specificity and tissue expression. Although genetic studies have indicated that 3--sulfated HS modulates many biological processes, ligand requirements for proteins engaging with HS modified by 3--sulfate (3-OS) have been difficult to determine. In particular, the context in which the 3-OS group needs to be presented for binding is largely unknown. Read More

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January 2021

Grape pectic polysaccharides stabilization of anthocyanins red colour: Mechanistic insights.

Carbohydr Polym 2021 Mar 4;255:117432. Epub 2020 Dec 4.

LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal.

Grape pectic polysaccharides-malvidin-3-O- β -d-glucoside binding was studied, aiming to unveil the impact of structural diversity of polysaccharides on anthocyanins-polysaccharides interactions. Polysaccharides were extracted with solutions of imidazole (ISP) and carbonate at 4 °C (CSP-4 °C) and room temperature (CSP-RT) and also recovered from the dialysis supernatant of the remaining cellulosic residue after the aqueous NAOH extraction of hemicellulosic polysaccharides (Sn-CR). Polysaccharides richer in homogalacturonan domains, like those present in the CSP-4 °C fraction had approximately 50-fold higher binding affinity to malvidin-3-O- β-d-glucoside, than polysaccharides with side chains (as ISP and CSP-RT extractable polysaccharides). Read More

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