High yield of tetramethylpyrazine in functional Fuqu using bacillus amyloliquefaciens

Publication date: Available online 10 July 2019Source: Food BioscienceAuthor(s): Wenqing Zhang, Guanru Si, Zhiming Rao, Jinglei Li, Xian Zhang, Jie Mei, Jiasheng Wang, Ming Ye, Ping ZhouAbstractFuqu is an important starter culture used for Chinese liquor brewing. And distillers’ grains (DGS) are the main by-product of the Chinese liquor industry. Tetramethylpyrazine (TTMP) is an important functional substance and key characteristic aroma component in Chinese liquor. A strain with high TTMP yield was identified as B. amyloliquefaciens XJB-104 and used to produce TTMP using DGS as the medium for solid-state fermentation (SSF). The cultures after SSF were used as Fuqu with high TTMP. DGS could be used as a raw material, and the production process for high TTMP producing Fuqu was developed. TTMP production (1.28 × 103 mg/kg, 365 mg/kg/d) using SSF for 3.5 d was higher than any previous results. Using SSF with DGS may provide a low-cost and effective strategy to produce high TTMP Fuqu.
Source: Food Bioscience - Category: Food Science Source Type: research