In the present scenario, the need for natural pigments is intense. Pigments are commonly used in food, cosmetics, pharmaceuticals, etc. The harmful side of synthetic dyes has encouraged the world to try a healthy and natural source. Pigment forming bacterial colonies is found to be one of the most effective sources of isolation of desired pigments. This study was undertaken to isolate the ... [Show full abstract] pigmented bacteria from waste water, characterize it and test the sensitivity of the pigmented bacteria to different antibiotics. Red pigmented bacterial colony was isolated from waste water and it was characterized to be Aeromonas sp. The antibiotic sensitivity of the bacteria was tested with antibiotic disc diffusion assay. It was found sensitive towards various antibiotics. The species of Aeromonas bacteria grows extensively in waste water and further studies should be done to isolate, extract and purify the bacterial pigment and use it for varied applications.
Keywords: Waste water, pigmented bacteria, pigments, antibiotic sensitivity.