We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Poly-β-hydroxybutyrate production by Synechocystis MT_a24 in a raceway pond using urban wastewater
ClearA Review of PHB Production by Cyanobacteria and Its Applications
This review examines cyanobacteria as photoautotrophic producers of polyhydroxybutyrate (PHB) bioplastic, summarizing how nutrient-stress conditions stimulate PHB accumulation and evaluating the cost-effectiveness and sustainability of using cyanobacteria as an alternative to conventional feedstocks for biodegradable plastic production.
Poly-β-Hydroxybutyrate Production by the Cyanobacterium Scytonema geitleri Bharadwaja under Varying Environmental Conditions
A cyanobacterium (blue-green alga) was found to produce a natural biodegradable plastic called PHB, with production rates affected by temperature, pH, and carbon source. This could be relevant to developing bio-based alternatives to petroleum-derived plastics.
Poly(3-hydroxybutyrate) production by Rhodopseudomonas sp. S16-VOGS3 cells grown in digested sludge
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.
Photosynthetic poly-β-hydroxybutyrate accumulation in unicellular cyanobacterium Synechocystis sp. PCC 6714
Researchers identified the cyanobacterium Synechocystis sp. PCC 6714 as a promising organism for photosynthetic production of the biodegradable polyester poly-beta-hydroxybutyrate (PHB) directly from CO2, offering a potentially more sustainable alternative to sugar-feedstock-based PHB production.
Biopolymers production from microalgae and cyanobacteria cultivated in wastewater: Recent advances
This review explores how microalgae and cyanobacteria grown in wastewater can produce biodegradable biopolymers as an alternative to conventional plastics. Researchers found that these organisms can manufacture polyhydroxyalkanoates and other bioplastics while simultaneously helping to treat wastewater. The approach offers a promising dual benefit of reducing plastic pollution and creating value from waste streams.
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.
Leptolyngbya sp. NIVA-CYA 255, a Promising Candidate for Poly(3-hydroxybutyrate) Production under Mixotrophic Deficiency Conditions
Researchers investigated the cyanobacterium Leptolyngbya sp. NIVA-CYA 255 as a candidate for biodegradable poly(3-hydroxybutyrate) (PHB) bioplastic production, finding that a three-stage cultivation process combining phototrophic nitrogen/phosphorus depletion followed by mixotrophic sodium acetate supplementation enhanced PHB accumulation, confirmed by FTIR, GC-MS, and fluorescent dye analyses.
Enhanced production of biobased, biodegradable, Poly(3-hydroxybutyrate) using an unexplored marine bacterium Pseudohalocynthiibacter aestuariivivens, isolated from highly polluted coastal environment
Researchers isolated and characterised Pseudohalocynthiibacter aestuariivivens P96, a marine bacterium from a highly polluted coastal environment, finding it capable of producing poly(3-hydroxybutyrate) (PHB) at up to 4.73 g/L corresponding to 87% of total cell dry weight, representing a promising bio-based and biodegradable alternative to fossil-fuel plastics.
Advancements in Synthetic Biology for Enhancing Cyanobacterial Capabilities in Sustainable Plastic Production: A Green Horizon Perspective
This review explores the potential of cyanobacteria as a sustainable platform for producing biodegradable plastics and biofuels. Researchers highlight the organisms' high photosynthetic efficiency and minimal growth requirements, positioning them as promising candidates for cost-effective bioplastic production that could help reduce reliance on conventional plastics.
Production and optimization of bioplastic (Polyhydroxybutyrate) from Bacillus cereus strain SH-02 using response surface methodology
Researchers optimized conditions for a bacterium called Bacillus cereus to produce polyhydroxybutyrate (PHB) — a biodegradable plastic made naturally by bacteria — achieving high yields using a statistical optimization method called response surface methodology. PHB is a promising alternative to conventional petroleum-based plastics because it breaks down in the environment, potentially reducing long-term microplastic accumulation.
Cyanobacteria as a Promising Alternative for Sustainable Environment: Synthesis of Biofuel and Biodegradable Plastics
This review examines how cyanobacteria can serve as a sustainable platform for producing both biofuels and biodegradable plastics like polyhydroxyalkanoates, offering a dual approach to reducing carbon emissions and plastic pollution.
Characterization of Poly(3-hydroxybutyrate) (P3HB) from Alternative, Scalable (Waste) Feedstocks
This study compares two biodegradable bioplastics (P3HB) made from waste feedstocks — one produced by cyanobacteria using sunlight and CO2, the other by methane-eating bacteria — and finds both have thermal and mechanical properties on par with conventionally produced P3HB. The relevance to microplastics is indirect: switching to genuinely biodegradable plastics made from waste gases could reduce the long-lasting microplastic particles generated by conventional petroleum-based polymers.
Isolation, Production, Extraction, Optimization and Fortification of PHB using Silver Nanoparticles from Lactobacillus Casei
Researchers isolated soil bacteria capable of producing the biopolymer polyhydroxybutyrate (PHB) as a biodegradable plastic substitute, optimizing PHB production from Lactobacillus casei and exploring fortification with silver nanoparticles to enhance material properties.
Selection of microalgae and cyanobacteria to produce polyhydroxyalkanoates (PHAs) - A case study in Vietnam
Researchers screened 47 strains of microalgae and cyanobacteria from Vietnam for their ability to produce polyhydroxyalkanoates (PHAs) — biodegradable plastics made by microorganisms — finding 15 strains capable of producing them, with several Arthrospira (spirulina-type) strains accumulating the most. These naturally produced bioplastics could serve as a sustainable, biodegradable alternative to conventional plastics that contribute to microplastic pollution.
Production of biopolymers from microalgae and cyanobacteria
This review examines the production of biopolymers, particularly polyhydroxyalkanoates (PHAs), from microalgae and cyanobacteria as sustainable alternatives to conventional petroleum-based plastics, synthesizing studies on biomass accumulation and production pathways. The authors discuss the properties, applications, and scalability challenges of microalgae- and cyanobacteria-derived bioplastics in the context of reducing plastic pollution and fossil fuel dependence.
Influence of microbial biomass content on biodegradation and mechanical properties of poly(3-hydroxybutyrate) composites
This paper is not about microplastics — it studies how adding microbial biomass (algae and cyanobacteria) to a biodegradable polyester (PHB) accelerates its degradation rate in soil.
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.
Bioplastics against Microplastics: Screening of Environmental Bacteria for Bioplastics Production
Researchers screened environmental bacteria for their ability to produce polyhydroxyalkanoate bioplastics, which are biodegradable alternatives to conventional petroleum-based plastics. Developing efficient bioplastic-producing strains is one strategy to reduce the long-term accumulation of persistent microplastics in the environment.
Physicochemical cell disruption of Bacillus sp. for recovery of polyhydroxyalkanoates: future bioplastic for sustainability
Researchers tested mechanical methods — including grinding, sonication, and glass bead vortexing — to extract polyhydroxybutyrate (PHB), a biodegradable plastic produced by bacteria, without using toxic chemical solvents. Sonication with a lysis buffer achieved the highest yield at 45%, pointing toward greener industrial processes for producing this promising sustainable bioplastic.
Environmental life cycle assessment of polyhydroxyalkanoates production by purple phototrophic bacteria mixed cultures
A life cycle assessment of polyhydroxyalkanoate (PHA) bioplastic production using purple phototrophic bacteria and municipal organic waste found that the photobiorefinery process dominates environmental impacts due to energy use and chemical inputs, but showed net carbon and fossil resource benefits compared to conventional plastics.
Isolation and characterisation of Methylocystis spp. for poly-3-hydroxybutyrate production using waste methane feedstocks
Researchers isolated two new strains of methane-eating bacteria capable of converting waste methane gas — from landfills and digesters — into poly-3-hydroxybutyrate (PHB), a biodegradable plastic alternative. This dual approach could simultaneously reduce greenhouse gas emissions and produce an eco-friendly substitute for conventional petroleum-based plastics.
Sustainable Polyhydroxyalkanoate Production from Food Waste via Bacillus mycoides ICRI89: Enhanced 3D Printing with Poly (Methyl Methacrylate) Blend
Not relevant to microplastics — this study develops a process for producing the bioplastic polyhydroxybutyrate (PHB) from food waste using bacteria, then blends it with poly(methyl methacrylate) for use as a 3D printing filament.
The co-conversion of methane and mixtures of volatile fatty acids into poly(3-hydroxybutyrate-co-3-hydroxyvalerate) expands the potential of an integrated biorefinery
Researchers used a methane-consuming bacterium to simultaneously convert natural gas and food waste byproducts into PHBV, a biodegradable plastic alternative, achieving yields that varied depending on the mix of waste acids supplied. This integrated biorefinery approach could reduce reliance on conventional petroleum-based plastics by making biodegradable polymers from waste streams.
Microbial Production of Biopolymer Polyhydroxybutyrate (PHB): Current Challenges and its Application
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.