2种乳酸菌降胆固醇能力的比较研究  

Comparison of cholesterol-degradation effi ciently of 2 lactic acid bacteria

作　　者：王秀娟[1] 张小磊[1] 商雪娇 马艳梅[3] 王雅丽[1] 曹勇[1] 王玉华[1] 

机构地区：[1]吉林农业大学食品科学与工程学院,长春130118 [2]长春迪瑞医疗科技股份有限公司,长春130012 [3]黑龙江职业学院,双城150111

出　　处：《食品科技》2016年第5期12-15,共4页Food Science and Technology

基　　金：吉林省科技厅科技创新人才培育计划项目(20140519011JH);吉林省教育厅吉林省高校新世纪科学技术优秀人才项目(201439)

摘　　要：通过改变酸乳中的保加利亚乳杆菌和嗜热链球菌生长环境,优化乳酸菌高效降胆固醇的最适条件,并用硫酸铁铵法测定胆固醇含量。研究结果表明,保加利亚乳杆菌和嗜热链球菌均在2%接种量,p H为6.7、37℃下,培养48 h后,降胆固醇效果最好,降解率分别达到4.12%和4.53%。During this experiment, it was optimized the best condition of reducing cholesterol efficiently by altering the growth environment of Lactobacillus bulgaricus and Streptococcus thermophilus in yoghourt. What＇s more, it was utilize ammonium ferric sulfate to measure the cholesterol levels. The results shows that the cholesterol levels could be declined most efficiently when inoculation amount of Lactobacillus bulgaricus and Streptococcus thermophilus both are 2%, pH is 6.7, temperature is 37 % and they are cultivated for 48 h. The degradation rate approximates to 4.12% and 4.53% respectively.

关 键 词：保加利亚乳杆菌 嗜热链球菌 胆固醇 

分 类 号：TS201.4[轻工技术与工程—食品科学]