采用发酵法对银条水浸提掖中的水苏糖进行提纯,考察了乳酸菌、酵母菌、日本曲霉及其混合菌株对银条浸提液中水苏糖的影响,筛选出了适宜的发酵菌株为:日本曲霉与乳酸菌的混合菌株。利用该菌株可将银条浸提液中的蔗糖及单糖组分总量降至3%左右,水苏糖及其他功能性低聚糖含量达到95%左右,水苏糖保留率在95%以上。

Purification of stachyose in Stachys japonica Miq.by fermentation,selection of utilization of carbon source in Stachys japonica Miq.immersed juice by Lactobacillus,S.Cerevisiae,Aspergillus japonicas and their mixture.The best one screened out was the mixture of Lactobacillus and Aspergillus japonicas.Using this mixture in betony immersed juice,the gross of monosaccharide and sucrose could be lower into 3%,stachyose and other functionality oligosaccharide could be 95%,and the residual rate of stachyose was more than 95%.