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.
出处
《现代食品科技》
EI
CAS
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
