Bioresource Technology Reports, Journal Year: 2024, Volume and Issue: 28, P. 101989 - 101989
Published: Nov. 2, 2024
Language: Английский
International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 263, P. 130188 - 130188
Published: Feb. 17, 2024
Plastic pollution is the biggest environmental concern of our time. Breakdown products like micro- and nano-plastics inevitably enter food chain pose unprecedented health risks. In this scenario, bio-based biodegradable plastic alternatives have been given a momentum aiming to bridge transition towards more sustainable future. Polyhydroxyalkanoates (PHAs) are one few thermoplastic polymers synthesized 100 % via biotechnological routes which fully biodegrade in common natural environments. Poly(hydroxybutyrate-co-hydroxyhexanoate) [P(HB-co-HHx)] PHA copolymer with great potential for commodity industry, as its mechanical properties can be tailored through fine-tuning molar HHx content. We recently developed strategy that enables reliable tailoring monomer content P(HB-co-HHx). Nevertheless, there often lack comprehensive investigation material PHAs evaluate whether they actually mimic functionalities conventional plastics. present detailed study P(HB-co-HHx) copolymers low moderate hydroxyhexanoate understand how influences thermal link those their abiotic degradation. By increasing fractions range 2 - 14 mol%, we impart an extension processing window application melting temperature (T
Language: Английский
Citations
15
Iranian Polymer Journal, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 8, 2025
Language: Английский
Citations
1
Trends in biotechnology, Journal Year: 2024, Volume and Issue: 42(10), P. 1273 - 1287
Published: April 5, 2024
Language: Английский
Citations
8
Microorganisms, Journal Year: 2024, Volume and Issue: 12(10), P. 2028 - 2028
Published: Oct. 8, 2024
The search for alternatives to petrochemical plastics has intensified, with increasing attention being directed toward bio-based polymers (bioplastics), which are considered healthier and more environmentally friendly options. In this review, a comprehensive overview of polyhydroxyalkanoates (PHAs) is provided, including their characterization, applications, the mechanisms underlying biosynthesis. PHAs natural polyesters produced by wide range prokaryotic some eukaryotic organisms, positioning them as significant widely studied type bioplastic. Various strategies production from agroindustrial waste, such cacao shells, cheese whey, wine, wood, beet molasses, reviewed, emphasizing potential sustainable feedstocks. Industrial processes PHAs, complexities associated extraction purification, also examined. Although use waste materials offers promise in reducing costs environmental impact, challenges remain optimizing these enhance efficiency cost-effectiveness. need continued research development improve sustainability economic viability PHA emphasized, viable eco-friendly alternative conventional petroleum-based plastics.
Language: Английский
Citations
8
Deleted Journal, Journal Year: 2024, Volume and Issue: unknown
Published: March 11, 2024
Abstract Poly(hydroxyalkanoates) (PHAs) are a class of sustainable, bio-based thermoplastic polymers with attractive physiochemical properties, including non-toxicity, biocompatibility, elastomeric behavior by design, and piezoelectric characteristics. In the ongoing effort to reduce plastics waste, PHAs can play substantial role due their inherent biodegradability free microplastics, customizable versatile applications. This includes tremendous potential in broad range biomedical Biomass-based materials have recently gained great interest health sector, given vast amount interdisciplinary research bioengineering medicine. Implantable biomaterials should not elicit any negative response at implantation site, which differentiates them from general-purpose polymers. do induce thrombosis or antigenic even after being contact blood human body during long-term use. The biocompatibility is also key factor rapid growth proliferation tissues onto within these when served as tissue engineering scaffolds. By application, field was estimated be second-largest market share for PHAs, terms volume, 2022. While PHA-based bring forth opportunities, they present challenges that limited widespread use greater share. A better understanding properties biodegradation rates, production challenges, need cost-effective strategies some hurdles addressed. review paper provides an overview commonly used PHA homopolymers copolymers fields packaging industries. introduction manuscript presents concept bioplastics environmental significance, highlighting urgent alternatives conventional fossil-based plastics. next sections briefly cover synthesis, well homopolymer copolymer formulations, followed application field. Current opportunities together insight into future gathered published studies, been brought concluding section this paper.
Language: Английский
Citations
7
Microbial Biotechnology, Journal Year: 2024, Volume and Issue: 17(6)
Published: June 1, 2024
Abstract The transition towards a sustainable bioeconomy requires the development of highly efficient bioprocesses that enable production bulk materials at competitive price. This is particularly crucial for driving commercialization polyhydroxyalkanoates (PHAs) as biobased and biodegradable plastic substitutes. Among these, copolymer poly(hydroxybutyrate‐ co ‐hydroxyhexanoate) (P(HB‐ ‐HHx)) shows excellent material properties can be tuned by regulating its monomer composition. In this study, we developed high‐cell‐density fed‐batch strategy using mixtures fructose canola oil to modulate molar composition P(HB‐ ‐HHx) produced Ralstonia eutropha Re2058/pCB113 1‐L laboratory scale up 150‐L pilot scale. With cell densities >100 g L −1 containing 70–80 wt% PHA with tunable HHx contents in range 9.0–14.6 mol% productivities 1.5 h , demonstrate tailor‐made an industrially relevant Ultimately, enables bioplastics defined on kilogram scale, which often required testing adapting manufacturing processes target diverse applications.
Language: Английский
Citations
5
Polymers, Journal Year: 2024, Volume and Issue: 16(13), P. 1768 - 1768
Published: June 22, 2024
Biopolymers from renewable materials are promising alternatives to the traditional petroleum-based plastics used today, although they face limitations in terms of performance and processability. Natural fillers have been identified as a strategic route create sustainable composites, natural form waste by-products received particular attention. Consequently, primary focus this article is offer broad overview recent breakthroughs environmentally friendly Polhydroxyalkanoate (PHA) polymers their composites. PHAs aliphatic polyesters obtained by bacterial fermentation sugars fatty acids considered play key role addressing sustainability challenges replace various industrial sectors. Moreover, examines potential biodegradable polymer with specific emphasis on composite materials, current trends, future market prospects. Increased environmental concerns driving discussions importance integrating our daily use, emphasizing need for clear frameworks economic incentives support use these materials. Finally, it highlights indispensable ongoing research development efforts address sector, reflecting growing interest across all industries.
Language: Английский
Citations
5
Polymers, Journal Year: 2024, Volume and Issue: 16(12), P. 1621 - 1621
Published: June 7, 2024
Today, 98% of all plastics are fossil-based and non-biodegradable, globally, only 9% recycled. Microplastic nanoplastic pollution is just beginning to be understood. As the global demand for sustainable alternatives conventional continues rise, biobased biodegradable have emerged as a promising solution. This review article delves into pivotal concept carbon recycling pathway towards achieving zero-waste future through production utilization high-value bioplastics. The comprehensively explores current state bioplastics (biobased and/or materials), emphasizing importance carbon-neutral circular approaches in their lifecycle. chiefly used low-value applications, such packaging single-use items. sheds light on value-added like longer-lasting components products, demanding properties, which increasingly being deployed. Based waste hierarchy paradigm—reduce, reuse, recycle—different use cases end-of-life scenarios materials will described, including technological options recycling, from mechanical chemical methods. A special emphasis common bioplastics—TPS, PLA, PHAs—as well discussion composites, provided. While it acknowledged that (waste) crisis stems largely mismanagement, needs stated radical solution must come core material side, intrinsic properties polymers formulations. manner cascaded bioplastics, labeling, legislation, technologies, consumer awareness can contribute topics this article.
Language: Английский
Citations
4
Polymer Chemistry, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 15, 2024
Conventional plastics pose significant environmental and health risks across their life cycle, driving intense interest in sustainable alternatives. Among these, polyhydroxyalkanoates (PHAs) stand out for biocompatibility, degradation characteristics, diverse applications. Yet, challenges like production cost, scalability, limited chemical variety hinder widespread adoption, impacting material selection design. This review examines PHA research through the lens of classical materials tetrahedron, exploring property-structure-processing-performance (PSPP) relationships. By analyzing recent literature addressing current limitations, we gain valuable insights into development. Despite challenges, remain optimistic about role PHAs transitioning towards a circular plastic economy, emphasizing need further to unlock full potential.
Language: Английский
Citations
4
European Polymer Journal, Journal Year: 2024, Volume and Issue: 221, P. 113557 - 113557
Published: Nov. 5, 2024
Language: Английский
Citations
4