甲壳素

甲壳素结构式
甲壳素结构式
常用名 甲壳素 英文名 chitin
CAS号 1398-61-4 分子量 221.20800
密度 1.37 g/cm3 沸点 522.4ºC at 760 mmHg
分子式 C8H15NO6 熔点 >300°C (dec.)
MSDS 美版 闪点 269.8ºC

In situ continuous growth formation of synthetic biominerals.

Chem. Commun. (Camb.) 49(33) , 3407-9, (2013)

Continuous self-assembled growth of both the organic and inorganic components of materials with nacre-like structure is achieved upon mineralisation of chitin and chitosan scaffolds using a combined soaking method and the inclusion of poly(acrylic acid) and c...

Listeria monocytogenes has a functional chitinolytic system and an active lytic polysaccharide monooxygenase.

FEBS J. 282(5) , 921-36, (2015)

Chitinases and chitin-active lytic polysaccharide monooxygenases (LPMOs) are most commonly associated with chitin metabolism, but are also reported as virulence factors in pathogenic bacteria. Listeria monocytogenes, a well-known virulent bacterium, possesses...

Slow Off-rates and Strong Product Binding Are Required for Processivity and Efficient Degradation of Recalcitrant Chitin by Family 18 Chitinases.

J. Biol. Chem. 290 , 29074-85, (2015)

Processive glycoside hydrolases are the key components of enzymatic machineries that decompose recalcitrant polysaccharides, such as chitin and cellulose. The intrinsic processivity (P(Intr)) of cellulases has been shown to be governed by the rate constant of...

Leaf-cutter ant fungus gardens are biphasic mixed microbial bioreactors that convert plant biomass to polyols with biotechnological applications.

Appl. Environ. Microbiol. 81 , 4525-35, (2015)

Leaf-cutter ants use plant matter to culture the obligate mutualistic basidiomycete Leucoagaricus gongylophorus. This fungus mediates ant nutrition on plant resources. Furthermore, other microbes living in the fungus garden might also contribute to plant dige...

pH-sensitive microparticles for oral drug delivery based on alginate/oligochitosan/Eudragit® L100-55 “sandwich” polyelectrolyte complex

Colloids Surf. B Biointerfaces 110 , 395-402, (2013)

The primary objective of this study was to investigate the influence of the oligochitosan-Eudragit(®) L100-55 polyelectrolyte complex (OCH-EL PEC) on the pH-sensitivity of Eudragit(®) L100-55-treated alginate-oligochitosan microparticles. In order to achieve ...

Quorum sensing-regulated chitin metabolism provides grazing resistance to Vibrio cholerae biofilms.

ISME J. 9 , 1812-20, (2015)

Association of Vibrio cholerae with chitinous surfaces of zooplankton is important for its persistence in marine environments, as it provides accessibility to nutrients and resistance to stresses. Predation by heterotrophic protists has a major impact on the ...

Synthesis of ethylenediamine modified chitosan and evaluation for removal of divalent metal ions.

Carbohydr. Polym. 97(2) , 530-6, (2013)

Selective modification of chitosan has been achieved by incorporating ethylene-1,2-diamine molecule in a regioselective manner using N-phthaloylchitosan and chloro-6-deoxy N-phthaloylchitosan as precursors. The present modification results in additional nitro...

A novel fluorescence assay and catalytic properties of Crh1 and Crh2 yeast cell wall transglycosylases.

Biochem. J. 455(3) , 307-18, (2013)

The mechanical properties of fungal cell walls are largely determined by composition and mutual cross-linking of their macromolecular components. Previous work showed that the Crh proteins are required for the formation of cross-links between chitin and gluca...

The attack of the phytopathogens and the trumpet solo: Identification of a novel plant antifungal peptide with distinct fold and disulfide bond pattern.

Biochimie 95(10) , 1939-48, (2013)

Phytopathogens cause economic losses in agribusiness. Plant-derived compounds have been proposed to overcome this problem, including the antimicrobial peptides (AMPs). This paper reports the identification of Ps-AFP1, a novel AMP isolated from the Pisum sativ...

Optimized expression conditions for enhancing production of two recombinant chitinolytic enzymes from different prokaryote domains.

Bioprocess Biosyst. Eng. 38 , 2477-86, (2016)

Enhancing functional gene expression is key to high-level production of active chitinases. For this purpose, the effects of culture cell density, inducer concentration, post-induction time and induction temperatures on the functional expression of two differe...