陕西科技大学学报（自然科学版）2017，Vol.35Issue(1)：129-133,5.
具有α-葡萄糖苷酶抑制性益生乳酸菌的筛选
Screening of probiotic lactic acid bacteria withα-glucosidase inhibition activity
摘要
Abstract
The eighteen lactic acid bacteria strains which preliminary screening from the fer-mentation of fruits and vegetables,by research on their prebiotic properties of acid production ability and withstand artificial gastrointestinal fluid ability,we found that total acid amount produced by 18 lactic acid bacteria strains was between 0.8% to 3.2%,Which have two lactic acid bacteria strains total acid amount more than 3%,three lactic acid bacteria strains were below 1%.In the research of tolerance with simulation environment of the human artificial gastric j uice and intestinal j uice test,we found that the survival rate of three strains was less than 20%,the remaining 15 strains survival rate are more than 20%.Then wasα-glucosidase inhibition study,we finally detected that this 1 8 lactic acid bacteria strains have differentα-glucosidase inhibition activity,ranging from 5.71% to 37.48%,the highest inhibition rate was Bifidobacteriumanimalis subsp.lactis No.1 which reached 37.48%,the lowest for Lac-tobacillus rhamnosus No.1 was 5 .7 1%.Finally we selected four probiotic lactic acid bacteria strains have good probiotic properties andα-glucosidase inhibition activity which were Bifidobacteriumanimalis subsp.lactis No.1,Lactobacilluscasei No.2,Lactobacillusplanta-rum No.2,Uncultured lactobacillus No.1.关键词
乳酸菌/人工胃液/人工肠液/α-葡萄糖苷酶Key words
lactic acid bacteria/artificial gastric j uice/artificial intestinal j uice/α-glucosidase分类
数理科学引用本文复制引用
吕嘉枥,张军蒙,余芳,田延楚..具有α-葡萄糖苷酶抑制性益生乳酸菌的筛选[J].陕西科技大学学报（自然科学版）,2017,35(1):129-133,5.基金项目
陕西省科技厅科技统筹创新工程计划项目（2011KTCQ03-08）；咸阳市科技计划项目 （）
