Polyhydroxyalkanoates (PHAs) are a group of bioplastics that have a wide range of applications. Extensive progress has been made in our understanding of PHAs' biosynthesis, and currently, it is possible to engineer bacterial strains to produce PHAs with desired properties. The substrates for the fermentative production of PHAs are primarily derived from food-based carbon sources, raising concer...

Polyhydroxyalkanoates (PHA) are a family of bio polyesters synthesized by many types of bacteria as carbon and energy reserve materials, Anderson AJ et al (1990). PHA can be divided into three classes depending on the number of carbon atoms in their monomer units; shortchain-length (SCL), medium-chain-length (MCL) and longchain-length polyhydroxyalkanoates (LCLPHAs), composed by hydroxyacids. P...

Microaerophilic microenvironment at biocathode was evaluated for electrogenesis along with the polyhydroxyalkanoates (PHA) accumulation in bio-electrochemical system (BES). The electrogenic activity (512 mV; 15.2 mW/m(2)) was extended for longer periods (144 h) which might be attributed to the lowering of losses due to the controlled microbial metabolism. Growth limiting stress at cathode due t...

Polyhydroxyalkanoates (PHA) are diverse polyesters synthesized by a variety of bacteria as intracellular carbon and energy storage compounds. As bio-renewable and biodegradable materials with diverse properties, PHA have drawn industrial attentions for their potential applications in many fields. This review focuses on recent strain developments for PHA production via cofactor engineering and m...

The main objective of the present study is to assess and improve fermentation conditions produce polyhydroxyalkanoates (PHAs), such as homopolymer poly(3-hydroxybutyrate) (PHB) copolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), from renewable inexpensive industrial waste by wild type Cupriavidus necator. Untreated residual glycerol, a byproduct generated biodiesel industry, was used...

Polyhydroxyalkanoate (PHA), produced by mixed microbial cultures (MMCs), is a biodegradable biopolyester that alleviates the global plastic crisis in nearest future. Even PHA has become research hotspot, reviews on composition determining thermodynamic and processing properties of products are rare. The primary focus evaluation relies factors affecting monomer MMC-PHA production. Besides, since...

Polyhydroxyalkanoates (PHA) envisage a potential biomaterial alternative to replacing synthetic polymers for their biodegradability and biocompatibility. Modification approaches exploit the attributes adjust intrinsic hydrophobic properties, such as blending produce new polymer mix with novel properties. Functionalization of PHA, especially chemical grafting, perform introduce additional compou...

The production of polyhydroxyalkanoates (PHAs) by Bacillus megaterium using industrial residues, crude glycerol from biodiesel synthesis and rice hull hydrolysate (RHH), as low-cost carbon sources was investigated. experiments were conducted shaking flasks at 30 °C 180 rpm up to 72 h. extraction PHA carried out sodium hypochlorite make its recovery more environmentally friendly avoiding organic...

Polyhydroxyalkanoates (PHA), a class of microbial polyesters produced from fermentation, is of interest for scientists and environmentalists due to its wide-ranged combinations of monomers, biodegradability and biocompatibility properties. In this study, efforts were made to understand the kinetics of isothermal crystallisation of PHA containing 3 mol% of 3-hydroxyhexanoate (3HHx) co-monomer [P...