Môi trường nuôi cấy vi sinh Alphachem

Listeria monocytogenes is a Gram-positive short-form bacillus having flagella, which does not form endospores. Taxonomically, eight bacterial strains belong to Listeria. Among these bacterial strains, one bacterial strain L. monocytogenes is considered pathogenic in humans and animals. These antisera are intended for O-antigen and H-antigen typing of L. monocytogenes and each antiserum is a liquid product that contains agglutinins specific to each antigen type. These antisera are prepared by hyper-immunizing rabbits with heat-inactivated whole cells or flagella, heating at 56°C for 30 minutes, and removing cross agglutinins by absorption and filtrating them through a sterilized membrane. Each antiserum contains 0.08 w/v% sodium azide as a preservative.