Abstract
Prodigiosin is known for its immunomodulatory, antibacterial, antimycotic, antimalarial, algicidal and anticancer activities. Here, we reported the evaluation of prodigiosin pigment as a dyeing agent in rubber latex, paper and polymethyl methacrylate (PMMA)so that it can be considered as an alternative to synthetic pigments. Maximum color shade was obtained in rubber sheet prepared with 0.5 parts per hundred gram of rubber (phr) pigment and PMMA sheet incorporated with 0.08 μg pigment. Results indicate scope for utilization of prodigiosin as dye for PMMA and rubber and also prodigiosin dyed paper as a pH indicator. Further, being a natural and water insoluble pigment, it is ecofriendly. Key words: Prodigiosin, Serratia sp., dye, rubber, polymethyl methacrylate.
Highlights
Natural pigments and synthetic dyes are extensively used in various industries including food, textile, paper, rubber, in agricultural practice, and water science and technology
BTWJ8 isolated from marine sediment, as dye for imparting different shades of color to rubber latex, polymethyl methacrylate sheets and paper
Synthetic dyes made from nonrenewable sources such as fossil fuels are used extensively in the textile, rubber, paper and plastic industries and the industrial effluents loaded with these dyes has created alarming situation with respect to environmental health
Summary
Natural pigments and synthetic dyes are extensively used in various industries including food, textile, paper, rubber, in agricultural practice, and water science and technology. To alleviate the problems caused by the synthetic dyes and chemicals, alternative eco-friendly technologies and use of natural pigments that are biodegradable are preferred. Natural biocolorants obtained from plants, animals and microorganisms are possible alternatives to synthetic dyes and pigments currently employed in various industries (Mapari et al, 2005).
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