Zhang, Qing published the artcileAltering microbial communities: A possible way of lactic acid bacteria inoculants changing smell of silage, Quality Control of 123-39-7, the main research area is lactic acid bacteria stylo rice straw silage.
Silage is traditionally and globally used as an important feed source for ruminants. The smell of silage affects not only feed intake of animals but also the milk flavor and quality. Stylo and rice straw were ensiled with or without a Lactobacillus plantarum strain (LP) for 30 days. Microbial communities were detected by Illumina HiSeq sequencing method and volatile chems. for the smell features were also analyzed using a metabolomics approach. The addition of LP decreased (P < 0.05) weight loss, pH, ammonia-N content, butyric acid content and increased (P < 0.05) lactic acid content of the two silages. Totally, 117 volatile chems. were identified in the two silages, including 45 esters, 16 terpenes, 12 aromatics, 10 alc., 9 alkanes, 8 heterocyclic compounds, 7 ketones, 4 aldehydes, 3 acids, 2 amines and 1 phenol. In stylo silage, 13 chems. including 1-(2-hydroxy-5-methylphenyl)-ethanone, 1-hexanol, tetradecanoic acid, Et ester, vinyl trans-cinnamate, 3-methyl-1-butanol, Bu caprate, Bu benzoate, N-methyl-formamide, 3-phenylpropanol, phenylethyl alc., butanoic acid, Bu ester, propanoic acid, Et ester and 3-(1-methylethyl)-oxetane were downregulated by LP. In rice straw silage, 6 volatile chems. including propanoic acid, Bu ester, propanoic acid, hexyl ester, 1-(2-hydroxy-5-methylphenyl)-ethanone, (4-methoxyphenyl)-hydrazine, 4-ethyl-2-methoxy-phenol and 1-(2,4-dihydroxyphenyl)-ethanone were downregulated by LP. Almost all these chems. were pos. correlated (P < 0.05) with the relative abundance of Kosakonia, Enterobacter, Lachnoclostridium and Nigrospora, and were neg. correlated (P < 0.05) with the relative abundance of Lactobacillus, Methylobacterium, Sphingomonas. In conclusion, microbiota has influence on volatile metabolites of silages. Lactic acid bacteria inoculants could alter the smell by changing microbial communities of the silage. This study provides a new insight into intrinsic characteristics related to smell of silages and a potential way to change. Animal Feed Science and Technology published new progress about Aldehydes Role: BUU (Biological Use, Unclassified), BIOL (Biological Study), USES (Uses). 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Quality Control of 123-39-7.
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics