Bacteriology

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facet applications:Bacteriology

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脂多糖

脂多糖（LPS）是革兰氏阴性细菌细胞壁的特征成分；在革兰氏阳性细菌中不存在。它位于膜外层，在无包膜菌株中暴露于细胞表面。它们有助于维持外膜完整性，保护细胞免受胆汁盐和亲脂性抗生素的作用。

微生物生长实验方案

在微生物培养基中生长感受态细胞的常规实验方案。

准备起始培养物

New EN ISO 22964 for Cronobacter spp. detection in the food chain

The new EN ISO 22964:2017 standard specifies a horizontal method for the detection of Cronobacter spp. in food, animal feed and environmental samples.

Testing Cells for Bacterial and Fungal Contamination

Cell culture protocol for testing cell lines for bacterial and fungal contamination.

Revised EN ISO 21528:2017 for Detection and Enumeration of Enterobacteriaceae in the Food Chain

The International Organization for Standardization (ISO) published the revised EN ISO 21528-1 and EN ISO 21528-2 standards in 2017.

New EN ISO 22964 for Cronobacter spp. detection in the food chain

The new EN ISO 22964:2017 standard specifies a horizontal method for the detection of Cronobacter spp. in food, animal feed and environmental samples.

Lipopolysaccharides

Lipopolysaccharides (LPS) are characteristic components of the cell wall of Gram negative bacteria; they are not found in Gram positive bacteria. They are localized in the outer layer of the membrane and are, in noncapsulated strains, exposed on the cell

Standards for Detection and Enumeration of Listeria monocytogenes and Listeria spp. in the food chain

ISO published revised EN ISO 11290-1 and EN ISO 11290-2 standards in 2017. In Part 1, a horizontal method for the detection of Listeria monocytogenes and Listeria spp. is specified, and in Part 2, the enumeration of these organisms in

Listeria: a Survivor

In recent years it has been recognized that Listeria is an important public health problem. The disease affects primarily people of advanced age, pregnant women, newborns, and adults with weakened immune systems.

Revised EN ISO 21528:2017 for Detection and Enumeration of Enterobacteriaceae in the Food Chain

The International Organization for Standardization (ISO) published the revised EN ISO 21528-1 and EN ISO 21528-2 standards in 2017.

Initiating a Starter Culture

Cleaning Laboratory Glassware

Learn how to properly clean your laboratory glassware to improve your lab technique and insure high quality results. The most carefully executed piece of work may give an erroneous result if dirty glassware is used.

Microbial Growth Protocols

General protocols for growth of competent cells in microbial medium.

Testing Cells for Bacterial and Fungal Contamination

Cell culture protocol for testing cell lines for bacterial and fungal contamination. Free ECACC handbook download.