摘要
以茅台镇酱香型大曲为试验对象,研究不同曲虫量对大曲贮存过程中各项性质的变化影响。结果表明,曲虫量对大曲贮存质量影响突出:当7 kg大曲中曲虫量<0.1 g时,大曲曲香味能较好保持,酱香味积累较快,异杂味出现晚,大曲中微生物数量减少幅度相对较小,糖化力、液化力、酯化力及酒化力保持较好,受影响不大,特别是菌落总数、霉菌和糖化力在前期还有所增加;7 kg大曲中曲虫量达到1.0 g时,大曲曲香味和酱香味在后期基本消失,异杂味严重,且理化及生化品质降低。大曲香味物质随着曲虫数量的增加其种类和总量大幅度下降,尤其曲虫量达到1.0 g/7 kg情况下,香味物质损失严重。采取措施控制曲虫量,对保持大曲较好的发酵性能有着重要意义。
With sauce-flavor Daqu as the test object,the effects of different number of insects on the changes of various properties during Daqu storage were studied.The results showed that the number of insects had great effect on Daqu quality.When the number of insects were less than 0.1 g/7 kg,the fragrance of Daqu could be well maintained,the scent of sauces flavor accumulated faster,and the taste of off-flavor appeared later.The decrease of microorganisms in Daqu was relatively small,and the power of saccharification,liquefaction,esterification and vinification were affected less and remained well.In particular,the total number of colonies and molds,saccharification power were increased in the early period.When the number of insects was 1.0 g/7 kg,the odor of the Daqu and the flavor of the sauce were almost lost and off-flavor seriously in the later period;at the same time,physical and chemical quality decreased significantly.With the increase of the number of the insects,Daqu's aroma substances decreased greatly,and the species and total number decreased.In particular,when the insects were 1.0 g/7 kg,the aroma substances and sauce flavor were seriously lost in the late stage.Taking effective measures to control the number of insects had great significance to maintain good fermentation performance of Daqu.
作者
何星
卢红梅
陈莉
乔岩
张丽
安家静
HE Xing;LU Hongmei;CHEN Li;QIAO Yan;ZHANG Li;AN Jiajing(Key Lab of Fermentation Engineering and Biological Pharmacy of Guizhou Province,Guizhou University,Guiyang 550025,China;School of Liquor-making and Food Engineering,Guizhou University,Guiyang 550025,China)
出处
《中国酿造》
CAS
北大核心
2018年第10期43-50,共8页
China Brewing
基金
贵州省科技计划(工业攻关)项目(黔科合GY字[2014]3031)
贵州大学研究生酱香型白酒创新实践基地项目
关键词
酱香型大曲
贮存过程
曲虫数量
影响
sauce-flavor Daqu
storage process
number of insects
effect
