Isolation and Characterization of Staphylococcus saprophyticus from Textile Industry Soil for Decolorization of Crystal Violet Dye
Krishna Ash
Sam Higginbottom University of Agriculture Technology and Sciences, India.
Sushma Ahalawat
Sam Higginbottom University of Agriculture Technology and Sciences, India.
Shailendra Kumar Srivastava
Sam Higginbottom University of Agriculture Technology and Sciences, India.
Sarvesh Kumar Mishra *
School of Biological Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, India.
*Author to whom correspondence should be addressed.
Abstract
Textile dyes are an important class of synthetic organic compounds and are, therefore, common industrial pollutants. They are produced in large scale and may enter the environment during production or later on during fiber dying. Thus, there is a need for developing treatment methods that were more effective in eliminating dyes from textile waste soil as its source. Staphylococcus saprophyticus was isolated from soil of a textile plant and selected as the most active dye degrader of 11 isolates. The important parameters including temperature, pH, carbon and nitrogen source on crystal violet decolorization were investigated. Under the optimum conditions, dye decolorization (92.35%) was successfully achieved within 120 h. at 30°C, pH 8 with sucrose and beef extract as the energy source.
Keywords: Staphylococcus saprophyticus, crystal violet, textile waste, industrial soil, temperature, pH, carbon and nitrogen source