文摘目的:利用蒸汽凝固器在拉萨地区制作改良罗氏培养基的温度和时间设定值,探索适合拉萨地区改良罗氏培养基制作的条件。方法:利用标准配制改良罗氏培养基液,以推荐的85℃的温度50 min的时间为基础,设置不同的温度和时间进行比对,同时通过无菌试验和标准结核菌株、试验结核菌株生长试验得出适合拉萨地区的温度和时间。结果:标准配制的改良罗氏培养基液,蒸汽凝固器采用三次凝固,梯度提高温度的方法。第一次凝固:72℃50 min 4℃冰箱放置24 h;第二次凝固:78℃30 min 4℃冰箱放置24 h;第三次凝固:82℃50 min,为适合拉萨地区制作改良罗氏培养基的温度和时间。结论:应用蒸汽凝固器采用三次凝固,梯度提高温度的方法将温度设定为72℃~82℃之间耗时72 h制作的改良罗氏培养基无菌试验合格,标准结核菌株及试验结核菌株生长旺盛,适合拉萨地区制作改良罗氏培养基,有实验应用价值。
基金the Zambian Ministry of Health and the staff of CDL for their supportsupported by the FIND and the TARGETS Consortium(funded by the UK Department for International Development+3 种基金 DFID)Further support was received through a subcontract from Johns Hopkins University with funds provided by grant no.19790.01 from the Bill and Melinda Gates FoundationIts contents are solely the responsibility of the authors and do not necessarily the official views of FINDDFID or the Bill and Melinda Gates Foundation.