FLUID SELENITE CYSTINE MEDIUM (DOUBLE PACK) (as per USP) (DOUBLE PACK) (PART – I )

Selective inhibitory effects of selenite were first demonstrated by Klett. Guth used it to isolate Salmonella Typhi. Leifson studied selenite and formulated a medium. Fluid Selenite Cystine Medium is a modification of Leifsons formula with added cystine by North and Bartram. The formulation corresponds to that of recommended by the AOAC for the detection of Salmonellae in foodstuff particularly egg products. It is included by APHA, USP. Recently ISO Committee also recommends this medium for the detection of Salmonellae.
Selenite Cystine Broth is useful for detecting Salmonella in the non-acute stages of illness when organisms occur in low numbers in test samples and for epidemiological studies to enhance the detection of low numbers of organisms from asymptomatic or convalescent patients.

for isolation of Salmonellae in foods, dairy products and materials of sanitary importance and clinical samples