Results 81 to 90 of about 2,397 (206)
EFSA Journal, Volume 23, Issue 4, April 2025.Abstract The European Commission asked EFSA to provide an opinion according to Article 23(6) of Regulation (EC) No 1107/2009, in conjunction with Article 29 of Regulation (EC) No 178/2002, regarding the approved plant protection uses of chitosan and chitosan hydrochloride as basic substances.
EFSA Panel on Plant Protection Products and their Residues (PPR) +20 more
wiley +1 more source
Chitosanase基因之大量表現俾生產Glucosamine
, 2014 Glucosamine被發現具有舒緩關節炎的效果，而chitosanase具有水解chitosan成為glucosamine的能力。因此由Bacillus菌株中選殖到chitosanase基因，並將此基因在E. coli及Bacillus表現系統中進行大量表現，所得到的酵素可用於生產glucosamine。本研究將利用培養基的組成及誘導的條件來提升chitosanase的產量，並建立chitosanase水解chitosan生產glucosamine之最佳條件，以提供工業界所需。Glucosamine ...
許文輝
core
Research Progress on Chitinase and Chitosanase with Transglycosylation Activity
Shipin gongye ke-jiN−acetyl chitooligosaccharides and chitooligosaccharides with high degree of polymerization are highly valued for their superior bioactivities. However, traditional preparation methods face various limitations, such as uncontrollable processes and ...
Yingying WEI +4 more
doaj +1 more source
Gut Microecology of Four Sympatric Desert Rodents Varies by Diet
Ecology and Evolution, Volume 15, Issue 3, March 2025.We observed significant differences in the gut microbial composition of four species of rodents living in the same habitat but each consuming different diets. These differences in gut microbiota may arise as adaptations to their distinct diets and digestive needs, thereby enhancing their ability to live within the same ecosystem.
Dongyang Chu +5 more
wiley +1 more source
Chitosanase及glucosaminidase基因之大量表現俾生產glucosamine
, 2014 Glucosamine被發現具有舒緩關節炎的效果，而chitosanase及glucosaminidase具有水解chitosan成為glucosamine的能力。Bacillus sp. NCHU-5的chitosanase (csn)基因經由基因重組，能夠在Escherichia coli BL21(DE3)及B.
許文輝
core
Enzymatic Modification of Native Chitin and Conversion to Specialty Chemical Products
Marine Drugs, 2020 Chitin is one of the most abundant biomolecules on earth, occurring in crustacean shells and cell walls of fungi. While the polysaccharide is threatening to pollute coastal ecosystems in the form of accumulating shell-waste, it has the potential to be ...
Nathanael D. Arnold +3 more
doaj +1 more source
Characterization of a Chitosanase fromAspergillus fumigatusATCC13073
Bioscience, Biotechnology, and Biochemistry, 2012 Chitosanase II was purified from the culture filtrate of Aspergillus fumigatus ATCC13073. The purified enzyme had a molecular mass of 23.5 kDa. The N-terminal amino acid sequence of chitosanase II was identical to those of other Aspergillus chitosanases belonging to glycoside hydrolase family 75.
HIRANO, Katsuaki +4 more
openaire +2 more sources
, 2014 Chitosan oligosaccharides of hexamer to decamer in chain length perform more potent antimicrobial, antitumor, and immunopotentiating activities, than shorter oligosaccharides. Chitosan digested with an endo-type chitosanase have the opportunity to obtain
Chen, Chang-Chen, 陳昶成
core
Characterisation of Chitooligomers Prepared with the Aid of Cellulase, Xylanase and Chitosanase
World Academy of Science, Engineering and Technology, 2014 The aim of this study was to obtain chitooligosaccharides from chitosan with better functional properties using three different enzyme preparations and compare the products of enzymatic hydrolysis. Commercially available cellulase (CL), xylanase (X) and chitosanase (CS) preparations were used to investigate hydrolytic activity on chitosan (CH) with low
Anna Zimoch-Korzycka +2 more
openaire +2 more sources
Purification of chitinase/chitosanase from Bacillus cereus and discovery of an enzyme inhibitor
, 2013 A chitinase and a chitosanase were induced from a squid pen powder (SPP)-containing medium of Bacillus cereus TKU030 and purified by precipitation with ammonium sulphate and combined column chromatography. The purified chitinase and chitosanase exhibited
Liang, Tzu-Wen; Chen, Yue-Yin; Pan, Po-Shen; Wang, San-Lang +1 more
core +1 more source