Results 21 to 30 of about 3,441 (180)

Dietary chitooligosaccharide supplementation alleviates intestinal barrier damage, and oxidative and immunological stress in lipopolysaccharide-challenged laying hens

Poultry Science, 2022
: This study aimed to investigate the effects of chitooligosaccharide (COS) on intestinal barrier, antioxidant capacity, and immunity of lipopolysaccharide (LPS)-challenged laying hens.
Y.F. Gu, Y.P. Chen, R. Jin, C. Wang, C. Wen, Y .M. Zhou   +5 more
doaj   +1 more source

Determination of the Deacetylation Degree of Chitooligosaccharides [PDF]

Marine Drugs, 2017
The methods for determination of chitosan content recommended in the Chinese Pharmacopoeia and the European Pharmacopoeia are not applicable for evaluation of the extent of deacetylation (deacetylation degree, DD) in chitooligosaccharides (COS). This study explores two different methods for assessment of DD in COS having relatively high and low ...
Yao Jiang, Chuhan Fu, Sihui Wu, Guihua Liu, Jiao Guo, Zhengquan Su   +5 more
openaire   +3 more sources

Bactericidal Action of Shrimp Shell Chitooligosaccharide Conjugated with Epigallocatechin Gallate (COS-EGCG) against Listeria monocytogenes

Foods, 2023
The antibacterial effect of chitooligosaccharide conjugated with five different polyphenols, including catechin (COS-CAT), epigallocatechin gallate (COS-EGCG), gallic acid (COS-GAL), caffeic acid (COS-CAF), and ferulic acid (COS-FER), against Listeria ...
Jirayu Buatong, Ajay Mittal, Pimonsri Mittraparp-arthorn, Suriya Palamae, Jirakrit Saetang, Soottawat Benjakul   +5 more
doaj   +1 more source

Facile Method for Surface-Grafted Chitooligosaccharide on Medical Segmented Poly(ester-urethane) Film to Improve Surface Biocompatibility

Membranes, 2021
In the paper, the chitooligosaccharide (CHO) was surface-grafted on the medical segmented poly(ester-urethane) (SPU) film by a facile two-step procedure to improve the surface biocompatibility.
Yifan Liu, Zhengqi Liu, Ya Gao, Weiwei Gao, Zhaosheng Hou, Yuzheng Zhu   +5 more
doaj   +1 more source

Anti-Inflammatory Activity of Chitooligosaccharides in Vivo [PDF]

Marine Drugs, 2010
All the reports to date on the anti-inflammatory activity of chitooligosaccharides (COS) are mostly based on in vitro methods. In this work, the anti-inflammatory activity of two COS mixtures is characterized in vivo (using balb/c mice), following the carrageenan-induced paw edema method.
Fernandes, João C., Spindola, Humberto, Sousa, Vanessa de, Santos-Silva, Alice, Pintado, Manuela E., Malcata, Francisco Xavier, Carvalho, João E.   +6 more
openaire   +5 more sources

Antibacterial Activity of Chitooligosaccharides

Zeitschrift für Naturforschung C, 2008
The aim of this study was to investigate the antibacterial activity of chitooligosaccharide, prepared by partial acid hydrolysis of chitosan, and of an aminoglycosylated derivative, prepared by reductive alkylation of the chitooligosaccharide, against E. coli and S. aureus.
Luis, Lillo, Julio, Alarcón, Gerardo, Cabello, Carlos, Céspedes, Claudia, Caro   +4 more
openaire   +2 more sources

Potential Medical Applications of Chitooligosaccharides

Polymers, 2022
Chitooligosaccharides, also known as chitosan oligomers or chitooligomers, are made up of chitosan with a degree of polymerization (DP) that is less than 20 and an average molecular weight (MW) that is lower than 3.9 kDa. COS can be produced through enzymatic conversions using chitinases, physical and chemical applications, or a combination of these ...
openaire   +2 more sources

Development of enzymatically produced chitooligosaccharide from shrimp industrial waste: opportunity and challenge

Squalen, 2010
Since identified having better properties such as solubility in water and bioactivities comparedto its polymer form, chitooligosaccharide has obtained great attention either from researcher andindustries.
Ekowati Chasanah
doaj   +1 more source

Chitooligosaccharide-2,5-anhydro-D-mannonic Acid

Molbank, 2014
Chitooligosaccharide with one 2,5-anhydro-D-mannofuranose unit at the reducing end (COSamf) was prepared by nitrous deamination of fully N-deacetylated chitosan. The oxidation of the amf-unit by chlorite sodium was achieved in high yield.
Emil Salim, Daniela Ailincai, Stéphane Trombotto   +2 more
doaj   +1 more source

Chitooligosaccharide and Its Derivatives: Potential Candidates as Food Additives and Bioactive Components

Foods, 2023
Chitooligosaccharide (CHOS), a depolymerized chitosan, can be prepared via physical, chemical, and enzymatic hydrolysis, or a combination of these techniques.
Ajay Mittal, Avtar Singh, Jirayu Buatong, Jirakrit Saetang, Soottawat Benjakul   +4 more
doaj   +1 more source