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61,005 resultsShowing papers similar to Characterization of newly isolated thermotolerant bacterium Cupriavidus sp. CB15 from composting and its ability to produce polyhydroxyalkanoate from glycerol
ClearInsight into polyhydroxyalkanoate (PHA) production from xylose and extracellular PHA degradation by a thermophilic Schlegelella thermodepolymerans
Researchers found that a heat-loving bacterium called Schlegelella thermodepolymerans can convert xylose — a sugar from plant biomass — into up to 80% of its body weight as polyhydroxyalkanoate (PHA), a biodegradable plastic alternative, and can also break down PHA it encounters in the environment.
A bibliometric landscape of polyhydroxyalkanoates production from low-cost substrates by Cupriavidus necator and its perspectives for the Latin American bioeconomy
This bibliometric analysis examined research on polyhydroxyalkanoate (PHA) biopolymer production by the model bacterium Cupriavidus necator using low-cost substrates, reviewing the field's relevance to the Latin American bioeconomy. Cupriavidus necator can accumulate PHAs up to 90% of dry cell weight, making it a key organism for developing biodegradable alternatives to petroleum-based plastics.
Sugar Beet Molasses as a Potential C-Substrate for PHA Production by Cupriavidus necator
Sugar beet molasses hydrolysates were evaluated as low-cost carbon substrates for polyhydroxyalkanoate (PHA) bioplastic production by the bacterium Cupriavidus necator, finding that the strain could efficiently convert molasses sugars into PHA at competitive yields. The study supports agricultural byproduct streams as economically viable feedstocks for scaling up microbially produced biodegradable plastics.
Production and characterization of polyhydroxyalkanoates by Halomonas alkaliantarctica utilizing dairy waste as feedstock
Researchers found that a salt-tolerant Antarctic bacterium called Halomonas alkaliantarctica can convert cheese whey — a dairy industry waste product — into polyhydroxyalkanoate (PHA), a biodegradable plastic alternative, producing up to 0.42 g/L without any additional nutrients, offering a dual benefit of waste valorization and sustainable bioplastic production.
Properties of Degradable Polyhydroxyalkanoates (PHAs) Synthesized by a New Strain, Cupriavidus necator IBP/SFU-1, from Various Carbon Sources
Researchers characterized a new Cupriavidus necator strain capable of producing polyhydroxyalkanoates (PHAs) under both autotrophic and organotrophic conditions from diverse carbon sources including sugars, glycerol, fatty acids, and plant oils. The carbon source strongly influenced PHA composition and properties, with oleic acid and fructose yielding the highest polymer contents of over 78-80%.
A polyhydroxyalkanoate synthesised by halophilic archaeon Natrialba swarupiae
A salt-loving archaeal microorganism (Natrialba swarupiae) was found capable of producing polyhydroxyalkanoates (PHAs), a type of biodegradable bioplastic. This expands the range of microbes that can be used for sustainable plastic production, with potential to reduce reliance on petroleum-based plastics.
Production of polyhydroxyalkanoate (PHA) biopolymer from crop residue using bacteria as an alternative to plastics: a review
This review examines how PHA, a biodegradable plastic made from crop waste using bacteria, could serve as a sustainable alternative to conventional plastics. While PHA breaks down naturally unlike traditional plastics that fragment into microplastics, challenges remain in making it heat-stable and cost-competitive enough for widespread industrial use.
The synthesis of polyhydroxyalkanoates from low carbon wastewater under anaerobic-microaerobic process: effects of pH and nitrogen and phosphorus limitation
Researchers optimized conditions for producing polyhydroxyalkanoates (PHAs) — biodegradable bioplastics — from wastewater using bacteria under anaerobic-microaerobic conditions. Controlling pH and nutrient levels significantly improved PHA production yield. This work advances the development of sustainable plastic alternatives made from waste materials.
Study of Bacterial Biopolymer Production by Bacillus Species
This study investigated the ability of Bacillus bacteria to produce polyhydroxyalkanoate (PHA) biopolymers, which are biodegradable alternatives to petroleum-based plastics. Microbial biopolymer production could help reduce reliance on conventional plastics that persist and accumulate in the environment.
Optimized Poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) (PHBV) Production by Moderately Haloalkaliphilic Bacterium Halomonas alkalicola Ext
Researchers isolated a salt- and alkali-tolerant bacterium from a Kenyan lake and optimized its production of the biodegradable polymer PHBV as an alternative to conventional plastics. Through systematic optimization of growth conditions, they achieved a polymer yield of over 45% of the bacterial cell mass. The study demonstrates that extremophilic microorganisms can serve as efficient producers of biodegradable plastics suitable for packaging and biomedical applications.
The Halophilic Bacterium Paracoccus haeundaensis for the Production of Poly(3-Hydroxybutyrate-co-3-Hydroxyvalerate) from Single Carbon Sources
This study demonstrated for the first time that Paracoccus haeundaensis can produce polyhydroxyalkanoates (PHAs) under nitrogen-limited conditions with glucose as carbon source, identifying it as a potential new bacterial host for biodegradable plastic production.
Identification and characterization of a novel extracellular polyhydroxyalkanoate depolymerase in the complete genome sequence of Undibacterium sp. KW1 and YM2 strains
Researchers identified a bacterial enzyme in freshwater Undibacterium species that can degrade polyhydroxyalkanoate (PHA), a type of biodegradable plastic. This discovery is relevant to developing microbially enhanced breakdown of biodegradable plastic alternatives to conventional petroleum-based plastics.
Comparative Genomics of Marine Bacteria from a Historically Defined Plastic Biodegradation Consortium with the Capacity to Biodegrade Polyhydroxyalkanoates
Researchers conducted comparative genomics of marine bacteria from a plastic biodegradation consortium, finding that multiple strains had the genomic capacity to biodegrade polyhydroxyalkanoate (PHA) bioplastics, with implications for understanding microbial degradation of biodegradable plastic alternatives.
Polyhydroxyalkanoate (PHA) Biopolyesters - Emerging and Major Products of Industrial Biotechnology
This review examined polyhydroxyalkanoate biopolyesters as industrially produced biodegradable plastics, covering their microbial biosynthesis, material properties, and commercial applications as sustainable alternatives to conventional petroleum-based plastics.
Isolation and Characterization of a Halomonas Species for Non-Axenic Growth-Associated Production of Bio-Polyesters from Sustainable Feedstocks
Researchers isolated and characterized a Halomonas species capable of producing polyhydroxyalkanoate (PHA) bio-polyesters under non-axenic growth conditions from sustainable feedstocks, demonstrating a cost-effective production pathway. The isolate's tolerance for contaminated growth environments reduces the need for strict sterility, potentially lowering bioplastic production costs as a replacement for petroleum-derived polymers.
The Effectiveness of Polyhydroxyalkanoate (PHA) Extraction Methods in Gram-Negative Pseudomonas putida U
Researchers evaluated different physical and chemical methods for extracting polyhydroxyalkanoates (PHAs), a type of bioplastic, from the bacterium Pseudomonas putida. They compared traditional solvent-based approaches with more sustainable alternatives to find cost-effective extraction techniques. The study contributes to making bioplastic production more commercially viable as an alternative to petroleum-based plastics.
Selection of polyhydroxybutyrate-producing bacteria and their polyhydroxybutyrate production using cassava and glycerol as carbon sources
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.
Towards polyhydroxyalkanoates synthesis with mixed microbial communities: exploring the uncoupled feeding strategy
This research explored mixed microbial communities for polyhydroxyalkanoate (PHA) bioplastic synthesis as a sustainable alternative to petroleum-based plastics. The study examined uncoupled feeding strategies to improve PHA yields from microbial consortia in waste-based feedstocks.
Bacterial Production of Hydroxyalkanoates (PHA)
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.
Polyhydroxyalkanoate production by Cupriavidus necator with inedible rice
Researchers optimized polyhydroxyalkanoate (PHA) production by Cupriavidus necator using inedible rice hydrolysate as a carbon source, achieving 4.82 g/L PHA at 68.6% cell content after 72 hours at 5-L scale, comparable to glucose-fed conditions (4.74 g/L at 77.6%). The study demonstrates that inedible rice hydrolysate is a viable low-cost feedstock for biodegradable PHA polymer production as an alternative to petroleum-based plastics.
What Is New in the Field of Industrial Wastes Conversion into Polyhydroxyalkanoates by Bacteria?
This review covers recent advances in using bacteria to convert industrial food waste into polyhydroxyalkanoates (PHAs), a type of biodegradable bioplastic. Using industrial waste as feedstock for bioplastic production could reduce both plastic pollution and food industry waste simultaneously.
A Review on Enhancing Cupriavidus necator Fermentation for Poly(3-hydroxybutyrate) (PHB) Production From Low-Cost Carbon Sources
This review summarizes strategies for enhancing poly(3-hydroxybutyrate) bioplastic production by Cupriavidus necator using low-cost carbon sources, covering metabolic engineering approaches and fermentation optimization as sustainable alternatives to conventional plastics.
Production of Polyhydroxyalkanoate by Bacillus thuringiensis Isolated from Agricultural Soils of Cascas-Peru
Researchers isolated Bacillus thuringiensis SP7-1 from agricultural soils in Cascas, Peru and characterized its production of polyhydroxyalkanoate (PHA) bioplastic, finding 0.54 g/L accumulation representing 19% of dry biomass, with FTIR, DSC, and TGA analysis confirming notable thermal degradation at 270-303 degrees C and a melting temperature of 166.88 degrees C.
Bioconversion of whey to Polyhydroxyalkanoate (PHA): Process Optimization and Yield Enhancement
Researchers investigated the microbial biosynthesis of polyhydroxyalkanoate using cheese whey as a substrate with a novel Stutzerimonas stutzeri strain, optimising the process to enhance PHA yield as a biodegradable alternative to conventional petroleum-based plastics.