TITLE:
A Novel Strain of Moderately Thermophilic Streptomyces from the Fenjiu-Flavor Daqu
AUTHORS:
Lihong Zhang, Baoyan Guo, Huiqing Yang, Caihui Wang
KEYWORDS:
Fen-Daqu, Moderately Thermophilic Actinobacteria, Streptomyces
JOURNAL NAME:
Open Access Library Journal,
Vol.9 No.2,
February
15,
2022
ABSTRACT: Fenjiu-flavour Daqu is an important starter to support growth of microorganisms in the fermented process of Fenjiu-flavor liquor. A novel thermophilic microorganism, designated strain gby1, was isolated from Fenjiu-flavour Daqu from Shanxi Xinghuacun Fenjiu Distillery Company Limited, Fenyang country, Shanxi province. The morphological, physiological, chemical taxonomic and phylogenetic characteristics of the strain were described in this paper. The isolate gby1 exhibited higher heat resistance. The strain is aerobes, non-motile, and spore forming bacteria. The strain can produce amylase, lipase. The physiological tests combined with 16S rDNA-based molecular analysis, gby1 was identified as a moderately thermophilic Streptomyces. In the paper, the thermophilic Streptomyces sp. gby1 is isolated and identified for the first time in Fen-Daqu. The results offer a reference for the comprehensive understanding of bacterial diversity of Fen-Daqu.