PSB BROTH MODIFIED (ISO 1994, ISO/DIS 10273)

Yersinia enterocolitica are ubiquitous, being isolated frequently from soil, water, animals, and a variety of foods. They comprise a biochemically heterogeneous group that can grow at refrigeration temperatures. PSB Broth Base is recommended by APHA for the primary enrichment of Yersinia species. PSB Broth Modified is a modification of PSB Broth recommended by ISO Committee. Supplementation of phosphate buffer with sorbitol and bile salts appears to be better for cold enrichment.

for primary enrichment and enumeration of Yersinia enterocolitica from food