Results 81 to 90 of about 3,625 (178)

Acetylation Activity and Specificity of Peptidoglycan Deacetylase BsPdaC Acting in Reverse on Chitooligosaccharides

ChemCatChem, Volume 18, Issue 10, 27 May 2026.
Bacillus subtilis PdaC is the first peptidoglycan deacetylase able to act in reverse, acetylating a glucosamine oligomer (chitopentaose) with a pattern of acetylation mirroring the natural deacetylation reaction with unique final regioselectivity, acetylating all but the reducing end of D5.
Karel Hernández, Laia Grifoll‐Romero, Margalida Artigues, Antoni Planas   +3 more
wiley   +1 more source

Chitooligosaccharides enzymatic production by Metarhizium anisopliae

Bioprocess and Biosystems Engineering, 2010
The products of chitosan hydrolysis are chitooligosaccharides and are used mainly for medical applications due to their specific biological activities. The objective of this study was to detect and identify the products of enzymatic hydrolysis of chitosan (dimers to hexamers) using a crude extract of chitosanolytic enzymes produced by the fungus ...
Santos, Everaldo Silvino dos, Assis, Cristiane Fernandes de, Araújo, Nathália Kelly, Pagnoncelli, Maria Giovana Binder, Pedrini, Márcia Regina da Silva, Macedo, Gorete Ribeiro de   +5 more
openaire   +3 more sources

The effect of chitooligosaccharide supplementation on intestinal morphology, selected microbial populations, volatile fatty acid concentrations and immune gene expression in the weaned pig

Animal, 2012
An experiment (complete randomised design) was conducted to investigate the effects of supplementing different molecular weights (MW) of chitooligosaccharide (COS) on intestinal morphology, selected microbial populations, volatile fatty acid (VFA ...
A.M. Walsh, T. Sweeney, B. Bahar, B. Flynn, J.V. O'Doherty   +4 more
doaj   +1 more source

The effects of supplementing varying molecular weights of chitooligosaccharide on performance, selected microbial populations and nutrient digestibility in the weaned pig

Animal, 2013
An experiment (complete randomised design) was conducted to investigate the effects of supplementing different molecular weights (MW) of chitooligosaccharide (COS) on pig performance, selected microbial populations and nutrient digestibility post-weaning.
A.M. Walsh, T. Sweeney, B. Bahar, B. Flynn, J.V. O'Doherty   +4 more
doaj   +1 more source

Enzyme-Linked Immunosorbent Assay for Detection of Chitooligosaccharides

Bioscience, Biotechnology, and Biochemistry, 2000
In order to detect chitooligosaccharides (COS), an enzyme-linked immunosorbent assay (ELISA) was developed. A chitooligosaccharide mixture (COSM) conjugated to bovine serum albumin was used to immunize rabbits to produce an anti-COS polyclonal antibody.
KIM, Soon-Young, SHON, Dong-Hwa, LEE, Ke-Ho   +2 more
openaire   +2 more sources

Fabrication of Zinc Oxide–Chitooligosaccharide-Based pH-Responsive Nanoparticles for Rice Bacterial Blight Management

Agriculture
Developing zinc oxide-based nano-bactericides as alternatives to conventional chemical bactericides for controlling rice bacterial diseases has become a major research focus.
Xiang Li, Ziyi Wu, Zijian Jiang, Junwei Zhang, Shuai Liu, Jianguo Feng   +5 more
doaj   +1 more source

Anti-inflammatory effect of gallic acid-conjugated chitooligosaccharides in lipopolysaccharide-stimulated RAW 264.7 macrophages

Vietnam Journal of Science, Technology and Engineering
The aim of the present study is to investigate the anti-inflammatory effect of gallic acid grafted onto COS chains (GA-COS), focusing on the reduction of nitric oxide production, downregulation of inflammatory signals such as inducible nitric oxide ...
Van-Hoai Bui, Hong-Tham N. Vo, Thanh-Tuan Duong, Se-Kwon Kim, Dai-Nghiep Ngo   +4 more
doaj   +1 more source

Effects of chitooligosaccharide on the in vitro antibacterial activity against avian Escherichia coli and the pharmacokinetics of florfenicol in healthy chickens

Poultry Science
: This study investigates the combined effects of chitooligosaccharide (COS) and florfenicol (FLO) on the inhibition of Escherichia coli in vitro, as well as the pharmacokinetic interactions between these compounds in healthy chickens.
Mei Zhang, Ze-En Li, Ming-Hui Duan, Yan Dai, Yang-Guang Jin, Yue Liu, Yan-Ni Zhang, Xing-Ping Li, Fan Yang   +8 more
doaj   +1 more source

Chitooligosaccharides in Food Industry [PDF]

Open Access Journal of Biomedical Science, 2019
openaire   +1 more source

Synthesis of Hetero-chitooligosaccharides

, 2008
Chitooligosacchride bestehen aus linear β-(1→4)-verknüpften 2-acetamido-2-deoxy-β-D-glucopyranose (GlcNAc) and/or 2-amino-2-deoxy-β-D-glucopyranose (GlcN) Einheiten. Sie beanspruchen aufgrund ihrer bemerkenswerten biologischen Eigenschaften – u.a. antibakterielle, antitumor, antimykotische und Elicitor Aktivität - grosses Interesse.
openaire   +1 more source