No abstract

Eco-friendly biopolymers, polyhydroxybutyrate, have been produced by many kinds of bacteria that possess most important applications in food packaging industries and also in medical field. In the present work, PHB production was economized through the statistical optimization of nutritional components. The preferable carbon and nitrogen sources chosen for the enhanced production of PHB were molasses and ammonium sulphate. The relative rate of production has been studied by understanding the complex interactions of variables using face-centred central composite design. The submerged fermentation with Acinetobacter nosocomialis RR20 produced PHB yield of 7.82 g/L at optimized conditions with a notable value change of eightfold increase in comparison with minimal salt medium and these findings have showed that the designed medium was significant in terms of higher of PHB production.

No abstract

Interesting properties like renewability, biocompatibility, and biodegradability are present in favorable materials produced by living organisms called biopolymers. They have recently caused some environmental concerns as they have been considered to compete with polymeric materials that are fossil-based. Energy, medical devices, electronics, and food packaging are some of the applications of biobased plastics that are gaining increasing interest. Microbes, agricultural wastes, animals, and plants are some examples of biological sources that can produce biopolymers. Among the promising sources for producing bioplastics are microalgae and cyanobacteria, both of which contain cellulose, carbohydrates (especially starch), proteins, and polyhydroxyalkanoates (PHAs), according to some studies. The potential of microalgal PHAs, polysaccharides, and proteins for the production of bioplastics is summarized in this review. A wide range of applications, including environmental remediation, adsorption, 3D printing, and antioxidants employ Biopolymers. A circular economy approach to microalgal-based bioplastic production is considered in this review to provide insight into current knowledge and future directions.

No abstract