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61,005 resultsShowing papers similar to Low-quality animal by-product streams for the production of PHA-biopolymers: fats, fat/protein-emulsions and materials with high ash content as low-cost feedstocks
ClearAdvanced approaches to produce polyhydroxyalkanoate (PHA) biopolyesters in a sustainable and economic fashion
This review examines strategies to reduce polyhydroxyalkanoate (PHA) bioplastic production costs by replacing expensive first-generation feedstocks (glucose, starch) with carbon-rich industrial waste streams as second-generation substrates. Researchers describe results from the EU-funded ANIMPOL and WHEYPOL projects, which demonstrated PHA production from animal processing and whey waste residues, improving economic viability and sustainability.
Valorization of Agri-Food Waste into PHA and Bioplastics: From Waste Selection to Transformation
This review examines how food and farming waste can be converted into biodegradable bioplastics called PHAs, which could replace petroleum-based plastics. The process uses bacteria to transform waste materials like whey and potato peelings into plastic that naturally breaks down. Developing viable alternatives to conventional plastics is critical for reducing the flow of microplastics into the environment and human food chain.
PHA-Based Bioplastic: a Potential Alternative to Address Microplastic Pollution
This review examines polyhydroxyalkanoate (PHA)-based bioplastics as biodegradable alternatives to petroleum-derived plastics, highlighting their potential to reduce microplastic pollution while discussing challenges in scaling production and improving material properties.
Paving the way for biobased materials : a roadmap for the market introduction of PHAs
This roadmap paper examines barriers to large-scale commercial production of PHA biopolymers, which are biodegradable alternatives to petroleum-based plastics. Scaling up PHA production is essential for offering plastic manufacturers sustainable alternatives that would not persist as microplastics in the environment.
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.
Prospective LCA to provide environmental guidance for developing waste-to-PHA biorefineries
Researchers used life cycle assessment to map out how future biorefineries could produce biodegradable plastics (polyhydroxyalkanoates, or PHA) from waste streams with up to 50% lower environmental impact compared to business-as-usual, provided supportive environmental policies are in place. The study identifies how well plastic is extracted from the microbial biomass as the single biggest factor controlling the process's environmental footprint.
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.
Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste
Researchers developed a scalable step-by-step method for producing polyhydroxyalkanoates (PHAs) bioplastics from food waste, addressing both the microplastic crisis and food waste challenges by demonstrating that food waste feedstocks can enable sustainable PHA production as a fully biodegradable alternative to 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.
Innovations in applications and prospects of bioplastics and biopolymers: a review
Researchers reviewed the chemistry, applications, and market outlook for bioplastic polymers including PHA, PLA, and cellulose-based materials, finding they offer meaningful environmental advantages over petroleum plastics but require further economic and performance optimization before achieving widespread commercial adoption.
A review on polyhydroxyalkanoate (PHA) production through the use of lignocellulosic biomass
This review examines the process of producing polyhydroxyalkanoate (PHA) bioplastics from lignocellulosic biomass. The study covers the full production chain from biomass pre-treatment to PHA extraction, exploring pathways for cost-effective biodegradable plastic production.
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.
Advances in Polyhydroxyalkanoate (PHA) Production, Volume 3
This review synthesizes advances in polyhydroxyalkanoate (PHA) biopolyester production as a family of biodegradable alternatives to conventional plastics, addressing growing public concern about plastic waste and microplastic formation by examining the latest research on PHA synthesis from fossil-free feedstocks.
An Overview of Biorefinery Waste for Microbial Production of Green Plastic in a Circular Economy
This review examines how waste streams from biorefineries — such as agricultural residues and food processing byproducts — can be used as feedstocks for microbial production of bioplastics like polyhydroxyalkanoates (PHAs). The authors assess current production methods, cost challenges, and the potential for a circular bioeconomy where plastic alternatives are made from waste rather than fossil fuels. While not about microplastic contamination directly, reducing reliance on conventional plastics through bio-based alternatives is a key long-term strategy for limiting microplastic generation.
Exploring Microorganisms from Plastic-Polluted Sites: Unveiling Plastic Degradation and PHA Production Potential
Researchers screened microorganisms from plastic-polluted sites for their ability to break down conventional plastics and produce a biodegradable alternative called PHA. They identified several bacterial strains capable of degrading synthetic polymers and simultaneously producing this bio-based plastic from waste materials. The study highlights the potential for using naturally adapted microbes from contaminated environments as tools for both plastic cleanup and sustainable material production.
Biosynthesis of Polyhydroxyalkanoates (PHAs) by the Valorization of Biomass and Synthetic Waste
This paper explores the production of polyhydroxyalkanoates (PHAs), biodegradable microbial polymers, from biomass and waste feedstocks as a sustainable alternative to conventional synthetic plastics. PHAs can be naturally synthesized by bacteria, offering a pathway to biodegradable plastics that do not persist as microplastic pollution.
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.
Exploiting sugar-rich feedstocks for sustainable polyhydroxyalkanoate production
Researchers investigated the use of sugar-rich agricultural feedstocks for sustainable production of polyhydroxyalkanoates (PHAs), evaluating these bacterial biopolymers as biodegradable alternatives to petrochemical plastics that contribute to microplastic pollution.
Existing Scenario and Environmental Significance of Biodegradable Plastics: A Review for a Sustainable Future
This review examines the current status of biodegradable plastics derived from renewable sources (starch, PLA, PHA), covering production methods, degradation behavior, and their real-world performance as alternatives to petroleum-based plastics in reducing landfill burden and marine microplastic pollution.
Polyhydroxyalkanoates (PHAs) – Production, Properties, and Biodegradation
This review covers polyhydroxyalkanoates (PHAs), a class of microbially produced biopolyesters, discussing raw material innovation, microbial producer strains, bioengineering approaches for improved yields, and end-of-life biodegradation options. PHAs are presented as a genuinely circular plastic alternative due to their renewable production, biodegradability, and compatibility with existing plastic applications including food packaging.
Metabolic Process and Types of Carbon Source leads to Desired Polyhydroxyalkanoate Properties
This review examines how different carbon sources and metabolic pathways influence the biosynthetic production of polyhydroxyalkanoates (PHAs), analyzing how carbon source selection and organism choice determine whether homo- or copolymers are produced and shape the resulting physical and chemical properties of these biodegradable plastics.
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.
Switching from petro-plastics to microbial polyhydroxyalkanoates (PHA): the biotechnological escape route of choice out of the plastic predicament?
This review makes the case for replacing petroleum-based plastics with microbially produced biodegradable alternatives (PHAs), particularly for packaging and medical applications. If produced efficiently enough, PHAs could reduce persistent plastic waste and the resulting microplastic pollution.
Bioplastics: A new analytical challenge
This review examines the environmental properties and degradation behavior of bioplastics such as PLA and PHAs, evaluating whether they represent a genuinely sustainable alternative to petroleum-based plastics and assessing the analytical techniques available to detect and quantify their breakdown products.