FLUID SELENITE CYSTINE MEDIUM (SELENITE CYSTINE MEDIUM) (VEG.) (DOUBLE PACK) (PART I)

Description

This medium is prepared by using Veg hydrolysate in place of Casein enzymic hydrolysate which makes the medium free from BSE/TSE risks. Selective inhibitory effects of selenite were first demonstrated by Klett. Guth used it to isolate Salmonella serotype Typhi. Leifson found that selenite inhibited feed Streptococci and coliforms, thereby allowing multiplication of Salmonella without identification from other intestinal flora. North and Baitiam modified Leifson selenite broth by adding cystine, which stimulated growth of Salmonella. Fluid Selenite Cystine Veg Medium is a modification of this medium. This medium is equivalent to the formulation recommended by the AOAC for the detection of Salmonellae in foodstuff, particularly egg products. Selenite Cystine Veg Broth is useful for detecting Salmonella in the nonacute stages of illness when organisms occur in the faeces in low numbers and for epidemiological studies to enhance the detection of low numbers of organisms from asymptomatic or convalescent patients.