Analysis of Physicochemical Indexes and Total Flavonoids in Jiangxiang Baijiu Spent Grains
In order to promote the effective utilization of Jiangxiang Baijiu spent grains,a major by-product of liquor brewing industry,this study took 12 Jiangxiang Baijiu spent grains samples from Guizhou Xiangkang Liquor(Group)Co.,Ltd.and Guizhou Guotai Winery Co.,Ltd.as the research objects,and determined their physical and chemical indicators(water content,starch,reducing sugar,acidity),and used UV spectrophotometry to establish a standard curve with rutin as the standard substance to determine the total flavonoid content.The results showed that the moisture,starch,reducing sugar and acidity in the Jiangxiang Baijiu spent grains samples were relatively stable,and the average content of total flavonoids was 0.012 g·L-1.In this study,the UV spectrophotometry method was used to determine the total flavonoid content in the samples,which was simple to operate and the results were accurate and reliable.It is suitable for the quantitative determination of total flavonoids in Jiangxiang Baijiu spent grains,and provides a reference for the in-depth development and utilization of Jiangxiang Baijiu spent grains.
NETL
NSTL
万方数据
