production and characterization of phb from two novel strains of bacillus spp. isolated from soil and activated sludge.the present study reports two bacteria, designated 87i and 112a, which were isolated from soil and activated sludge samples from hyderabad, india, and that are capable of producing poly-3-hydroxybutyrate (phb). based on phenotypical features and genotypic investigations, these microorganisms were identified as bacillus spp. their optimal growth occurred between 28 degrees c and 30 degrees c and ph 7. bacillus sp. 87i yielded a maximum of 70.04% dry cell weight (dcw) phb in medium containing gluc ...201019953293
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