项目数量-3473
培养基质控检测
北检院检测中心 | 完成测试:次 | 2025-12-31
注意:因业务调整,暂不接受个人委托测试望见谅。
检测项目
pH值测定:测量培养基的酸碱度,确保其处于特定微生物生长的最适范围,偏差会影响微生物的生长速率和代谢产物。
凝胶强度测试:评估固体培养基的凝固性能,适宜的硬度便于划线分离操作,过硬或过软均会影响菌落形态观察和分离效果。
水分含量测定:检测脱水培养基或制备后培养基的水分比例,水分过高易导致结块变质,过低则影响复水性和营养成分稳定性。
生长能力测试:使用标准菌株接种至待测培养基,观察其生长情况并与参考培养基对比,评估其对目标微生物的支持程度。
选择性测试:验证选择性培养基抑制非目标菌的能力,通过接种非目标菌观察其生长是否被有效抑制,确保分离纯化的特异性。
指示剂性能检查:对于含指示剂的培养基,需验证其颜色反应是否灵敏准确,例如糖发酵管中指示剂应能清晰显示酸碱度变化。
无菌性检查:将未接种的培养基置于适宜温度培养一定时间,确认无任何微生物生长,保证培养基本身不引入污染。
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