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Viability of bifidobacteria in short peptide enteral nutrition solution

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Author:
No author available
Journal Title:
JOURNAL OF THE FOURTH MILITARY MEDICAL UNIVERSITY
Issue:
22
DOI:
10.3321/j.issn:1000-2790.2007.22.005
Key Word:
二裂菌属;肠道营养;短肽;存活力

Abstract: 目的:研究双岐杆菌在短肽肠内营养液中的存活力.方法:将50 g/L两歧双歧杆菌菌悬液加入120 g/L短肽营养液中,37℃厌氧培养箱中培养,分别在0,4,8,12,14,16,20,24 h时间点取样进行活菌数、A550、酸度和pH测定.结果:在短肽肠内营养液中接种两歧双歧杆菌后,活菌数在培养0~16 h生长速度较快,16 h达最高峰,以后下降.A550随着时间的延长而增加.酸度也随着培养时间的延长而增加,在培养0~14 h之间增加较快,14 h以后增加缓慢.pH值随培养时间的延长而下降,在培养0~12 h之间下降较快,12 h以后下降缓慢.结论:双歧杆菌能在120 g/L的短肽肠内营养液中较好地存活,且在12~14 h期间应停止发酵.

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