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Characterization of Polyhydroxybutyrate Producing Bacterium Isolated from Sewage Sample
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Researchers identified and characterized bacterial strains isolated from sewage samples that are capable of producing polyhydroxybutyrate (PHB), a biodegradable thermoplastic. The study screens natural microbial communities for strains useful in sustainable bio-based plastic production.
The increasing importance of the non-degradable plastics has emerged as one of the major concerns. For this, research is being ventured from the existing reserve to produce bioplastics on the basis of biodegradability properties. Polyhydroxybutyrate, a thermoplastic that is biodegradable as well as environmental friendly, is one such example. Present study identifies potential bacteria strains producing Polyhydroxybutyrate from sewage soil sample collected from Tenali, Guntur District. AR15, one of the derivatives from the ten bacterial isolates recognized through Sudan Black staining, was perceived to be a potential PHB producer. A preliminary identification of the isolate was achieved through biochemical characterization and was found to be Bacillus sp. Biopolymer obtained from the isolate was characterized by FTIR and TGA. Further the biopolymer compared with standard and was seen to be Polyhydroxybutyrate.
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Researchers screened soil bacteria for their ability to produce polyhydroxybutyrate (PHB), a biodegradable biopolymer that can replace petroleum-based plastics. Five promising bacterial isolates were identified and characterized, with production conditions optimized. Scaling up microbial PHB production from inexpensive soil microbes is an important step toward making biodegradable plastic alternatives cost-competitive with conventional plastics.
Production of Polyhydroxybutyrate (PHB) by Novel Bacillus megaterium SWU01 Isolated from Activated Sludge
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Researchers isolated bacteria capable of producing polyhydroxybutyrate (PHB) — a biodegradable biopolymer that could substitute for conventional petroleum-based plastics — from wastewater sludge and cow dung. The most productive bacterial strain was identified as a new variant of Bacillus megaterium. Developing inexpensive microbial routes to biodegradable plastics from waste feedstocks could help reduce dependence on conventional plastics and lessen microplastic pollution.
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Researchers demonstrated that photosynthetic bacteria can be grown using nutrient-rich wastewater sludge as a low-cost medium, producing a biodegradable plastic called PHB (polyhydroxybutyrate) when phosphate becomes scarce. This approach offers a way to create eco-friendly bioplastics from waste materials, reducing reliance on petroleum-based plastics.
Isolation and Characterisation of Polyhydroxybutyrate (PHB) Producing Bacteria for Sustainable Bioplastic Development
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This paper isolates and characterizes bacterial strains capable of synthesizing polyhydroxybutyrate (PHB), a naturally occurring bioplastic stored as an energy reserve by certain microorganisms. Researchers identified promising bacterial candidates and assessed their PHB yield and production conditions. These findings support ongoing efforts to develop microbially produced bioplastics as biodegradable alternatives to conventional petroleum-based polymers.
Microplastics a Novel Substratum for Polyhydroxyalkanoate (PHA)-Producing Bacteria in Aquatic Environments
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Researchers investigated microplastic surfaces as a novel habitat for bacteria that produce polyhydroxyalkanoates (PHA), a biodegradable natural plastic. They isolated PHA-producing bacteria from microplastic-colonizing communities, suggesting microplastics in aquatic environments may inadvertently support bacteria capable of producing sustainable plastic alternatives.
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