• ADITYA VIJAY KASHIKAR
• KISHORI SWAPNIL TARFE

Pigments are natural as well as manmade biochemical compounds produced by plants and microorganisms which exhibits specific colors. They are regularly utilized in dye & textile industries, cosmetics, medicines, etc,. and also posses specific beneficial abilities along with antimicrobial activity. Prodigiosin pigment is one of the widely known and studied pigment which is produced mainly by Serratia marcescens It possess abilities like cellulose production ,dye degradation and antibacterial activity. It also shows different colors on different media. Among the various sources taken, the pinkish growth on coconut (Cocos nucifera) was collected. Red pigmented colonies on plate indicated presence of Serratia marcescens, primarily confirmed by Gram staining when Gram negative coccobacilli observed and later confirmed by biochemical tests. Extraction process for pigment was carried out by swabbing-overnight methanol method. The absorption spectrum of extracted pigment was observed on Digital colorimeter and. Plates swabbed with culture in peptone water resulted in pink coloured growth at room temperature. This particular research article deals with the Congo red degradation ability analysis of Serratia marcescens by using Broth inoculation and Colorimetric method. It has wide applications in colorants, dyes, textile industries , medicines, cosmetics. The dyeing activity of extracted pigments can be checked using industrial binders and can be used if found environmentally harmless. Anti-microbial activity of pigment is one of the strong aspect of Prodigiosin and can be checked using AST techniques such as disc-diffusion or Agar-cup method against different pathogens.

Serratia marcescens, Prodigiosin, Azo dyes, Dye Decolorization Assay, Congo red

" Isolation of Serratia marcescens and evaluation of its Congo red degradation activity ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 8, page no.e495-e504, August-2022, Available :http://www.jetir.org/papers/JETIR2208456.pdf

" Isolation of Serratia marcescens and evaluation of its Congo red degradation activity ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 8, page no. ppe495-e504, August-2022, Available at : http://www.jetir.org/papers/JETIR2208456.pdf