Pigment Production by Zinc Solubilizing Bacteria and their Anti-Microbial Potential

Abstract

Zinc (Zn) is an essential micronutrient required by plants and animals. But in environment soluble Zn is in limiting amount. To fulfill the requirement of available Zn, biotransformation of insoluble form is required. On the other hand, the synthetic dye is very toxic environment. So, our effort was to isolate some bacteria having potential ability to solubilize Zn and produce pigment. In our study we had taken thirteen bacteria among them E16, E3, E9, E10 and E3 solubilize significant high amount of Zn in presence of ZnO. Among all these isolates E23 E3, E16 D11, could produce different type of pigment of white, pale yellow, yellow or pink color. The produced pigments have ability to color fabrics. The E16 pigment was highly capable for dying fabric than other. Additionally, isolates have antimicrobial ability. E16 is highest efficiency index in case of E. coli & Staphylococcus sp. So, our isolates might have multipurpose application with proper management strategy