Abstract

Prodigiosin is a natural pigment produced by Serratia marcescens. The pigment was grown in MacConkey agar and Luria Bertani agar. Growth of the pigment was higher in Luria Bertani agar when compared with MacConkey agar. Antibacterial activity was evaluated using test organisms such as E.coli, Pseudomonas sp. by well diffusion method. The pigment was impregnated on the surface of the test organism in different concentrations and incubated. The clear inhibition zones that formed around the well indicates antibacterial activity. Keywords: Ecoli. Prodigiosin. Pseudomonas sp. Serratia marcescens.

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