Application of 14215-68-0. Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 14215-68-0, Name is N-((2S,3R,4R,5R,6R)-2,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)acetamide. In a document type is Article, introducing its new discovery.
A novel exochitinase gene (Echi47) was directly cloned from the pig fecal environment DNA using the genomic walking PCR technique and expressed in Escherichia coli BL21 (DE3). Echi47 has an open reading frame (ORF) of 1,161 bp encoding 386 amino acids. The amino acid sequence of Echi47 showed 36% identity with that of chitinase from Coprinellus congregatus. The recombinant exochitinase was purified with specific activity toward colloidal chitin of 6.84 U/mg. Echi47 was optimally active at pH 5.0 and 40 C, respectively. When colloidal chitin was used as substrate, N-acetylchitobiose [(GlcNAc)2] was mostly produced at the initial stage, suggesting that it is an exochitinase. Echi47 exhibited excellent resistance to pepsin, trypsin, proteinase K, and flavor protease. Under simulated alimentary tract conditions, Echi47 was stable and active, releasing 21.1 mg of N-acetylchitooligosaccharides from 80 mg of colloidal chitin. These properties make Echi47 a potential additive in the food and feed industries.
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics