益生菌婴幼儿配方乳粉中活菌数检测及其存活率研究  

Study of Living Number of Probiotics and Survival Rate in Infant Formula Milk Powder

作　　者：俞漪[1] 刘洋[1] 曲勤凤[1] 段文锋[1] 赵敏[1] 张清平[1] 

机构地区：[1]上海市质量监督检验技术研究院/国家食品质量监督检验中心(上海),上海200233

出　　处：《食品工业》2014年第7期177-180,共4页The Food Industry

基　　金：国家质检总局科技项目(2012QK279);上海市质监局科技项目(2012-16);国家自然科学基金(31301486);上海市自然科学基金(13ZR1439600)

摘　　要：采用ISO 29981—2010方法检测20例益生菌婴幼儿配方乳粉中活性益生菌数量;分析其与国家产品标准的符合情况。研究益生菌婴幼儿配方乳粉在4℃,25℃,37℃温度下保存14 d和28 d后的活菌数,分析其存活率和达标情况。结果表明90%乳粉样品中的初始活性益生菌数符合国家标准;乳粉中益生菌存活率随温度升高或存放时间延长而降低,达标率下降。Living numbers of probiotic in 20 cases of infant probiotic formula milk powder were detected according to methods specified in ISO 29981--2010, and compared to national standard. The survival rate ofprobiotics and compliance rote were studied when samples were stored at 4℃, 25 ℃, 37 ℃ for 14 d and 28 d, respectively. Data showed that the initial living number complied with the national standard in 90% milk samples, and that the survival and compliance rate reduced with elevated temperature and long storage.

关 键 词：益生菌 婴幼儿配方乳粉 活菌数 存活率 达标率 

分 类 号：TS252.1[轻工技术与工程—农产品加工及贮藏工程]