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合作性细胞计量实验室间环测试用于益生菌量化量化.

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概括
此摘要是机器生成的。

准确列举益生菌对于健康益处至关重要. 这项研究表明,流细胞计方法,包括光和阻抗流细胞计,可靠量化活细菌细胞,提供一种独立于培养的替代方法.

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文化独立的独立文化.在休眠状态下.电阻谱流细胞测量 (EIS-FC) 是一种电阻谱法.光流动细胞计流量计.阻抗流量细胞计阻抗流量计.益生菌是一种益生菌.可行的,但不可培养的.

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科学领域:

  • 微生物学 微生物学
  • 分析化学 分析化学
  • 生物技术是生物技术.

背景情况:

  • 益生菌,即带来健康益处的活微生物,需要精确的列举才能有效.
  • 目前的黄金标准,殖民地形成单位 (CFU),依赖于可培养性,可能低估了可行的细胞.
  • 可行但不能培养 (VBNC) 状态突出了文化依赖的可行性评估的局限性.

研究的目的:

  • 评估流细胞测量方法,以可靠地计算益生菌产品中的细菌.
  • 为了比较光流细胞计 (FFC) 和阻抗流细胞计 (IFC) 量化益生菌.
  • 评估这些文化独立方法的稳定性和一致性.

主要方法:

  • 进行了实验室间环测试以进行细胞计细菌定量.
  • 用光流细胞计 (FFC) 和阻抗流细胞计 (IFC) 评估了膜完整性.
  • 测试了六种不同的益生菌细菌物种 (3 Lactobacillus, 3 Bifidobacterium).

主要成果:

  • FFC方法在不同的设备,程序,材料和操作人员中表现出了稳定性.
  • 在优化后,IFC方法与FFC结果在总和活细胞计数方面表现出很好的一致性.
  • FFC和IFC都为测试的益生菌菌株提供了一致的结果.

结论:

  • 流式细胞计提供了一种可靠,精确和用户友好的培养独立的细菌计数方法.
  • FFC和IFC是传统培养方法的合适替代品,用于评估益生菌的生存能力.
  • 这些发现支持使用流细胞计来准确控制益生菌产品的质量.