细菌的微生物学检验包括哪些程序

2025-02-23 21:49:05
推荐回答(2个)
回答1:

细菌的微生物学检验包括哪些程序:
微生物包括:细菌、真菌以及一些小型的原生生物、显微藻类等在内的一大类生物群体以及病毒,它个体微小、种类繁多、与人类关系密切。涵盖了有益跟有害的众多种类,广泛涉及食品、医药、工农业、环保等诸多领域。微生物指标是衡量食品安全最常见、最重要的因素之一 。食品中如果含有超出一定数量的微生物,不仅会使食物变质、腐败、失去营养价值,而且还会危害人类的健康和安全。
微生物菌种检测
检测产品:
大肠杆菌、大肠埃希氏菌、菌落总数、酵母和霉菌数量、绿脓杆菌、李斯特氏菌、沙门氏菌、霍乱弧菌、阪崎肠杆菌、志贺氏菌、溶血性链球菌、商业无菌、金黄色葡萄球菌、产气荚膜梭菌、无菌测试、微生物限量、肠道球菌数、下菌落总数等;
微生物菌种检测
检测项目:
【常规项目】
菌落总数、大肠菌群、大肠杆菌、霉菌、酵母菌等;
【致病菌】
沙门氏菌、单核增生李斯特氏菌、志贺氏菌、金黄色葡萄球菌、副溶血性弧菌、霍乱弧菌、创伤弧菌、弯曲杆菌属、阪崎肠杆菌、绿脓杆菌、溶血性链球菌、肉毒梭菌、产气荚膜梭菌、蜡样芽孢杆菌、大肠埃希氏O157:H7/NM、致泻大肠埃希 氏菌、溶藻弧菌等;
微生物菌种检测
【其他】
军团菌、乳酸菌、罐头食品的商业无菌、肠杆菌科、嗜渗酵母、粪链球菌、粪大肠菌群、肠杆菌属、厌氧菌落总数、厌氧亚硫酸盐还原菌、需氧嗜温菌芽孢、厌氧嗜温菌芽孢、嗜热嗜酸菌、嗜热菌落总数、白色念珠菌等;
【实时PCR快速检测】
沙门氏菌、单核增生李斯特菌、大肠杆菌O157:H7/NM;
【抗菌性测试】
塑料制品,陶瓷,其他抗菌材质;
【药典常规测试】
USP 62,Ch。
微生物菌种检测
检测标准:
食品微生物学检验菌落总数测定 GB 4789.2-2016.
食品微生物学检验大肠菌群计数 GB 4789.3-2016.
食品微生物学检验沙门氏菌检验 GB 4789.4-2016 (不测血清分型)
食品微生物学检验 志贺氏菌检验 GB 4789.5-2012.
食品微生物学检验副溶血性弧菌检验 GB 4789.7-2013 (不测血清分型、神奈川试验)
食品微生物学检验金黄色葡萄球菌检验 GB 4789.10-2016.
食品微生物学检验 β型溶血性链球菌检验 GB 4789.11-2014.
食品微生物学检验 蜡样芽孢杆菌检验 GB 4789.14-2014.
食品微生物学检验 霉菌和酵母计数 GB 4789.15-2016.
食品卫生微生物学检验 调味品检验 GB/T 4789.22-2003.

回答2:

标本的采集非常重要。细菌感染通常是通过培养的方法检测的,而病毒通常是通过抗原或者核酸来检测的。细菌培养和鉴定,以及药敏试验,是合理使用抗菌药物的前提,好的标本决定一切,这是检验领域的一句俗话。不恰当的标本、不恰当的采集时间、不规范的采集方法,很可能造成假阴性,假阳性,杂菌污染等,延误诊断,危及生命。对于严重感染,我们是需要确定病原菌的,标本应该选择细菌可能定植的部位,如深部痰液,胸水,血液等,标本提取的时间应该在抗菌药物使用前,最好在发生寒战的时候。标本的采集一定要规范,避免把护士或医生手上,导管,或者采集器本身的杂菌带入标本。病毒感染较少检测,除了一些特殊的,如肝炎病毒,巨细胞病毒,以及其他一些传染病病毒等。病毒要达到一定拷贝量,才能用核酸定量的方法检测出来。而抗原抗体检测,相对来水受到标本影响较小。

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