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Microbial Production of Biopolymer Polyhydroxybutyrate (PHB): Current Challenges and its Application
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This review examines the microbial production of polyhydroxybutyrate (PHB), a biodegradable polyester produced by microorganisms as an energy and carbon storage compound, covering current production challenges and industrial applications. The study discusses PHB as a biopolymer alternative to petroleum-based plastics, addressing cost, yield, and scalability barriers limiting its commercial adoption.
Plastics are suitable for many industrial applications as they are inexpensive, sturdy, resistant to deterioration and highly versatile. Asadvantageous as plastics made from petroleum are, it remains the most major topic of concern among environmentalists and the scientists. Polyhydroxyalkanoates are biodegradable polyesters produced by a wide range of microbes as a source of energy for metabolism, carbon, and oxidoreduction; since they exhibit some properties, which are remarkably similar to those of polyolefins derived from fossil fuels. he literature review conducted over the past decade reveals that polyhydroxybutyrate (PHB) has the potential physical qualities for food packaging material, single-use plastic goods and medicinal sectors. Polyhydroxybutyrate (PHB) is a bacterial biopolymer that has begun to replace petrochemical plastics due to the present trend towards the efficient utilisation of relatively cheaper substrates for its production. This review discusses explicitly the developments in the analysis of microbial biopolymer PHB and additionally provides an outline of current industrial applications, Production, Extraction methods, genes involved, microbes that are capable of producing PHB, challenges faced during production and degradation of PHB.
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PHB - Bio Based and Biodegradable Replacement for PP: A Review
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This review assessed polyhydroxybutyrate (PHB), a biologically produced and fully biodegradable polyester, as a sustainable replacement for polypropylene in food packaging, noting its similar properties and genuine biodegradability as key advantages over conventional plastics that persist as microplastics.
Screening, identification and characterisation of Polyhydroxybutyrate producing bacteria from garden soil
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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.
Selection of polyhydroxybutyrate-producing bacteria and their polyhydroxybutyrate production using cassava and glycerol as carbon sources
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Researchers selected effective polyhydroxybutyrate (PHB)-producing bacteria and evaluated their ability to produce PHB using low-cost carbon sources including cassava and glycerol, aiming to reduce the high production costs that limit PHB bioplastics as a competitive alternative to synthetic plastics.
Bacterial Production of Hydroxyalkanoates (PHA)
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This review examines bacterial production of polyhydroxyalkanoates (PHA) as a biodegradable alternative to petroleum-based plastics, covering fermentation processes, scaling to industrial levels, and future trends, while noting that higher production costs currently prevent PHAs from competing commercially with conventional plastics.
PHB - Bio Based and Biodegradable Replacement for PP
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This review examined polyhydroxybutyrate (PHB) as a biodegradable, bio-based replacement for polypropylene in food packaging, noting that PHB is produced naturally by bacteria and degrades in marine environments unlike conventional plastics. The paper highlights PHB's potential to reduce plastic waste and microplastic pollution from short-lived packaging.
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