Results 21 to 30 of about 7,325 (251)

Research Progress on Preparation and Efficacy of Chiooligosaccharide Complex

Shipin gongye ke-ji, 2022
Chitooligosaccharides are the only basic oligosaccharides in nature with -NH2 and -OH functional groups. They are easily soluble in water and have extremely high biological activities such as antibacterial, anti-inflammatory, anti-oxidant, and anti ...
Liping FAN, Zhiwei LIU, Wenjuan JIAO, Lihua HUANG   +3 more
doaj   +1 more source

Crab-Eating Monkey Acidic Chitinase (CHIA) Efficiently Degrades Chitin and Chitosan under Acidic and High-Temperature Conditions

Molecules, 2022
Chitooligosaccharides, the degradation products of chitin and chitosan, possess anti-bacterial, anti-tumor, and anti-inflammatory activities. The enzymatic production of chitooligosaccharides may increase the interest in their potential biomedical or ...
Maiko Uehara, Chinatsu Takasaki, Satoshi Wakita, Yasusato Sugahara, Eri Tabata, Vaclav Matoska, Peter O. Bauer, Fumitaka Oyama   +7 more
doaj   +1 more source

Antifungal Agent Chitooligosaccharides Derived from Solid-State Fermentation of Shrimp Shell Waste by Pseudonocardia antitumoralis 18D36-A1

Fermentation, 2022
Shrimp shell waste is a potential source of the biopolymer chitin. Through fermentation, chitin can be converted into its derivative products. This study aimed to isolate and characterize the products of the biodegradation of chitin from shrimp shell ...
Widyastuti Widyastuti, Fendi Setiawan, Chasya Al Afandy, Arik Irawan, Aspita Laila, Ni Luh Gede Ratna Juliasih, Wawan Abdullah Setiawan, Masayoshi Arai, John Hendri, Andi Setiawan   +9 more
doaj   +1 more source

ARTP Mutagenesis Improves the Production of Chitosanase in Bacillus cereus

Shipin gongye ke-ji, 2022
Atmospheric and room temperature plasma(ARTP) Bacillus cereus was used to screen the strains with increased enzyme activity. The results showed that culturing Bacillus cereus in the seed solution for 6 hours could reach the middle and late logarithmic ...
Chaozheng ZHANG, Yi LI, Hua ZHAO
doaj   +1 more source

Production of Low Molecular Weight Chitosan and Chitooligosaccharides (COS): A Review

Polymers, 2021
Chitosan is a biopolymer with high added value, and its properties are related to its molecular weight. Thus, high molecular weight values provide low solubility of chitosan, presenting limitations in its use.
Cleidiane Gonçalves, N. Ferreira, L. Lourenço   +2 more
semanticscholar   +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

Quantification of chitooligosaccharides by FACE method: Determination of combinatory effects of mouse chitinases

MethodsX, 2020
Fluorophore-assisted carbohydrate electrophoresis (FACE) enables detection and quantification of degradation products from artificial and natural chitin substrates such as 4-NP-(GlcNAc)2, (GlcNAc)4 and colloidal chitin.
Masahiro Kimura, Takatoshi Umeyama, Satoshi Wakita, Kazuaki Okawa, Masayoshi Sakaguchi, Vaclav Matoska, Peter O. Bauer, Fumitaka Oyama   +7 more
doaj   +1 more source

Chitooligosaccharides Improve the Efficacy of Checkpoint Inhibitors in a Mouse Model of Lung Cancer

Pharmaceutics, 2022
YKL-40 (also named chitinase 3 like-1 protein [CHI3L1]) is a secreted chitinase-like protein which is upregulated in cancers and suggested to have pro-tumorigenic activity.
Astrid Zedlitz Johansen, Marco Carretta, Marie-Louise Thorseth, Shawez Khan, Klaire Yixin Fjæstad, Christian Beltoft Brøchner, Hannes Linder, Christina Ankjærgaard, Marco Donia, Inna Chen, Dorte Lisbet Nielsen, Claus Preibisch Behrens, Daniel Hargbøl Madsen   +12 more
doaj   +1 more source

Aggravated hepatic fibrosis induced by phenylalanine and tyrosine was ameliorated by chitooligosaccharides supplementation

iScience, 2023
Summary Hepatic fibrosis is a classic pathological manifestation of metabolic chronic hepatopathy. The pathological process might either gradually deteriorate into cirrhosis and ultimately liver cancer with inappropriate nutrition supply, or be slowed ...
Peng Liu, Heng Li, Hongyu Xu, Jin-Song Gong, Min Jiang, Zhenghong Xu, Jinsong Shi   +6 more
semanticscholar   +1 more source

Green-Chemical Strategies for Production of Tailor-Made Chitooligosaccharides with Enhanced Biological Activities

Molecules, 2023
Chitooligosaccharides (COSs) are b-1,4-linked homo-oligosaccharides of N-acetylglucosamine (GlcNAc) or glucosamine (GlcN), and also include hetero-oligosaccharides composed of GlcNAc and GlcN.
Reeba Thomas, Tamo Fukamizo, Wipa Suginta   +2 more
doaj   +1 more source