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The bacterial polyesters may be considered as “Green Plastics”, because of their biodegradable nature. These polyesters can be employed for packaging and coating materials / as biodegradable carriers and applied in the biomedical field. Twelve bacterial isolates were isolated from the dairy industry effluent sample. Screening for polyhydroxybutyrate (PHB) was done by Sudan black staining. PHB extraction was carried out by the chloroform digestion method. Biochemical and 16s rRNA analysis showed that PHB producing bacteria belong to Bacillus genera with Maximum production of PHB was analyzed by U.V spectrophotometer and finally it was characterized by FTIR, NMR, and GC MS.

Biopolymer, polyhydroxybutyrate (PHB), dairy industry effluent.

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RAMESHWARI, R. (2021). In vitro STUDIES ON CHARACTERIZATION OF POLYHYDROXYBUTYRATE. Asian Journal of Advances in Research, 11(2), 1-8. Retrieved from
Original Research Article


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