Zhang, Yuandi published the artcileCharacteristics of the microbiota and metabolic profile of high-temperature Daqu with different grades, Application of 2-Hydroxy-2-phenylacetic acid, the publication is World Journal of Microbiology & Biotechnology (2022), 38(8), 137, database is CAplus and MEDLINE.
The superior grade Daqu (S_Daqu) and normal grade Daqu (N_Daqu) have obvious differences in flavor, fracture surface, appearance, etc., which can be accurately grouped by well-trained panel based on their sensory properties. However, the differences in microbial community diversity and metabolites between the S_Daqu and N_Daqu were still unclear. The culture-dependent method, the third generation Pacific Biosciences (PacBio) single-mol., real-time (SMRT) sequencing technol., and NMR (NMR) were combined to show the characteristics in microorganisms and metabolites. This showed that the fungal counts were higher in N_Daqu while the richness of bacterial communities was higher in S_Daqu (P < 0.05). Lentibacillus, Burkholderia, Saccharopolyspora, Thermoascus, and Rasamsonia were the dominant genera of S_Daqu while Staphylococcus, Scopulibacillus, and Chromocleista were the dominant genera in N_Daqu. The content of differential acids, amino acids, and alcs. including fumarate, glucuronate, glycine, 4-carboxyglutamate, and myo-inositol in S_Daqu was higher than that in N_Daqu by 1H NMR coupled with multivariate statistical anal. The network anal. regarding microbes and metabolites suggested that Saccharopolyspora showed a strong pos. correlation with 4-carboxyglutamate while Thermoascus and Chromocleista were highly neg. correlated with alanine and isobutyrate, resp. Linear Discriminant Anal. (LDA) Effect Size (LEfSe) revealed that Macrococcus and Caulobacter were regarded as bacterial biomarkers in the S_Daqu while Chromocleista was the key fungal genera in N_Daqu. Functionality prediction indicated that the bacteria in S_Daqu were largely involved in more metabolic activities including biosynthesis, degradation, detoxification, and generation of precursor metabolite and energy.
World Journal of Microbiology & Biotechnology published new progress about 90-64-2. 90-64-2 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Alcohol,Natural product, name is 2-Hydroxy-2-phenylacetic acid, and the molecular formula is C9H9F5Si, Application of 2-Hydroxy-2-phenylacetic acid.
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https://en.wikipedia.org/wiki/Alcohol,
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