双堆堆积影响酱香型白酒发酵的机理研究
Mechanism of double pile accumulation affecting fermentation of sauce-flavor Baijiu
牟真 1王鼎 2王雅彬 2邱勇 1罗爱民1
作者信息
- 1. 四川大学轻工科学与工程学院,四川成都 610065
- 2. 宜府春酒业集团有限公司,四川成都 610065
- 折叠
摘要
通过在酱香型白酒第六轮次高温堆积过程中,将两组堆子分别进行大堆和双堆堆积发酵,考察比表面积增大在酿造过程中对酱香型白酒的影响.结果表明,与单独大堆堆积相比,双堆堆积的方式提升了酱香型白酒基酒的质量.根据酒醅分析结果,双堆堆积方式由于具有更大的比表面积,更能富集环境中的微生物,从而改变了酒醅微生物多样性,提升了芽孢杆菌属(Bacillus)、克罗彭斯特菌属(Kroppenstedtia)、枝芽孢杆菌属(Virgibacillus)等对于酱酒生产具有积极影响的菌属的相对丰度.基酒分析表明,具有更大比表面积的双堆堆积能够全方位提高基酒中的酯类、醇类、酸类、醛类、酮类、四甲基吡嗪等物质的含量,其四甲基吡嗪含量达到1.82 μg/mL,而大堆对照组中未检出.最终使得双堆组基酒酱香、焦香风味突出,酒体醇厚.
Abstract
In the process of the sixth rounds of high temperature accumulation of sauce-flavor(Jiangxiangxing)Baijiu,the large pile and double pile stacking fermentation of the two groups of piles was carried out,and the effect of increasing specific surface area on sauce-flavor Baijiu during brewing process was investigated.The results showed that compared with large pile stacking,double pile stacking improved the quality of sauce-flavor Baijiu base liquor.According to the analysis results of fermented grains,the double stacking method could enrich microorganisms in the environment be-cause of its larger specific surface area,thus changing the microbial diversity of fermented grains.The relative abundance of Bacillus,Kroppenstedtia and Virgibacillus,which had positive effects on the production of sauce-flavor Baijiu was increased.The analysis of base liquor showed that the con-tents of esters,alcohols,acids,aldehydes,ketones and tetramethylpyrazines in base liquor could be improved by double pile stacking with larger spe-cific surface area.The tetramethylpyrazines contents reached 1.82 µg/ml,but was not detected in the large pile control group.Finally,the flavor of the base liquor of double pile stacking group was outstanding,and the liquor body was mellow.
关键词
酱香型白酒/双堆堆积/大堆堆积/比表面积/糖化堆积/基酒/挥发性风味物质/微生物群落Key words
sauce-flavor Baijiu/double pile stacking/large pile stacking/specific surface area/saccharification stacking/base liquor/volatile flavor compounds/microflora引用本文复制引用
基金项目
四川省科技重点研发项目(2022YFN0057)
出版年
2024
NETL
NSTL
万方数据