Bi.G.G.Y AGAR (NICKERSON MEDIUM)

Bi.G.G.Y. Agar (Nickerson Agar) was originally formulated by Nickerson and further modified by Haley following study of sulphite reduction. This medium is only a part of the identification process of organisms. Bismuth ammonium citrate and sodium sulphite together act as selective agents for Candida species suppressing bacterial growth, at the same time indicating substrate reduction to yield bismuth sulphite which helps to presumptively identify Candida species.

for detection, selective isolation, di?erentiation & presumptive identi?cation of Candida tropicalis