双歧杆菌冻干制剂贮藏存活能力的研究  

Viability of Freeze-dried Bifidobacterium Preparations with Prolonged Storage

作　　者：杜鹏[1] 杨玉琢[2] 霍贵成[1] 

机构地区：[1]乳品科学教育部重点实验室(东北农业大学) [2]国家乳品工程技术中心(东北农业大学),黑龙江哈尔滨150086

出　　处：《现代食品科技》2005年第4期13-16,共4页Modern Food Science and Technology

基　　金：农业部科技成果转化基金(04EFN212300089)资助

摘　　要：测定了在不同温度下贮藏的冻干益生菌制剂中双歧杆菌的存活能力。将长双歧杆菌和婴儿双歧杆菌制备成冻干制剂,并将此冻干制剂分别贮存于-18℃,4℃和20℃三种贮藏条件下。分别在0天,45天和120天对冻干制剂中的双歧杆菌的存活能力进行测定。研究表明,在室温(20℃)下贮藏,冻干制剂中的两株双歧杆菌存活能力下降得最快,而双歧杆菌的存活能力在-18℃贮藏时下降的最慢。因此,双歧杆菌制剂的最佳贮存温度为-18℃。Viability of bifidobacteria in freeze-dried probiotic products at various temperatures during prolonged storage was assessed. Bifidobacterium longum and B. infantis were freeze-dried. The freeze-dried preparations were stored at -18℃, 4℃, and 20℃.Cell counts were enumerated under anaerobic conditions at 0, 45, and 120 days. Storage at 20℃ showed the greatest decline in the viability of bifidobacteria, whereas that at -18℃ showed the least decrease.

关 键 词：双歧杆菌制剂 存活能力 贮存温度 婴儿双歧杆菌 冻干制剂 存活能力 贮藏条件 贮存温度 双歧杆菌制剂 长双歧杆菌 益生菌制剂 测定 

分 类 号：TS201.3[轻工技术与工程—食品科学]