Journal of Polymers and the Environment, Journal Year: 2022, Volume and Issue: 30(12), P. 4903 - 4935
Published: Sept. 7, 2022
Language: Английский
Chemosphere, Journal Year: 2021, Volume and Issue: 284, P. 131427 - 131427
Published: July 2, 2021
Language: Английский
Citations
124
Catalysts, Journal Year: 2022, Volume and Issue: 12(3), P. 319 - 319
Published: March 11, 2022
Polyhydroxyalkanoates, or PHAs, belong to a class of biopolyesters where the biodegradable PHA polymer is accumulated by microorganisms as intracellular granules known carbonosomes. Microorganisms can accumulate using wide variety substrates under specific inorganic nutrient limiting conditions, with many carbon-containing coming from waste low-value sources. PHAs are universally thermoplastic, PHB and copolymers having similar characteristics conventional fossil-based polymers such polypropylene. properties dependent on composition its monomers, meaning have diverse range and, thus, functionalities within this biopolyester family. This diversity in functionality results array applications sectors food-packaging biomedical industries. In order for compete plastic industry terms economics, scale production needs grow current low base. Similar all new polymers, need continuous technological developments their material science market opportunities. The setup end-of-life management (biodegradability, recyclability) system infrastructure also critical ensure that other biobased be marketed maximum benefits society. nature biodegradability mean they key materials sector future. worldwide pollution demands reformation industry, humankind will face consequences every step food chain beyond. review discuss aforementioned points more detail, hoping provide information sheds light how
Language: Английский
Citations
118
Frontiers in Bioengineering and Biotechnology, Journal Year: 2021, Volume and Issue: 8
Published: Jan. 14, 2021
The transition toward “green” alternatives to petroleum-based plastics is driven by the need for “drop-in” replacement materials able combine characteristics of existing with biodegradability and renewability features. Promising are polyhydroxyalkanoates (PHAs), microbial biodegradable polyesters produced a wide range microorganisms as carbon, energy, redox storage material, displaying properties very close fossil-fuel-derived polyolefins. Among PHAs, polyhydroxybutyrate (PHB) far most well-studied polymer. PHB thermoplastic polyester, narrow processability window, due low resistance thermal degradation. Since melting temperature around 170–180°C, processing should be at least 180–190°C. degradation these temperatures proceeds quickly, causing rapid decrease in its molecular weight. Moreover, high crystallinity, stiff brittle resulting poor mechanical extension break, which limits application. A further limit effective exploitation polymers related their production costs, mostly affected costs starting feedstocks. first identification PHB, researchers have faced issues, several strategies improve reduce brittleness this polymer been developed. These approaches from vivo synthesis PHA copolymers, enhancement post-synthesis PHB-based material performances, thus addition additives plasticizers, acting on crystallization process well glass temperature. In addition, reactive blending other bio-based represents versatile approach modulate while preserving biodegradability. This review examines state art processing, shedding light green cost-effective tailored aimed modulating optimizing performances. Pioneering examples field will examined, prospects challenges presented. Furthermore, since establishment PHA-based industry passes through designing cost-competitive processes, inspect reported assessing economic aspect, examining recent progresses sustainability.
Language: Английский
Citations
105
Bioresource Technology, Journal Year: 2022, Volume and Issue: 347, P. 126698 - 126698
Published: Jan. 10, 2022
Language: Английский
Citations
101
Water Air & Soil Pollution, Journal Year: 2022, Volume and Issue: 234(1)
Published: Dec. 29, 2022
Language: Английский
Citations
93
Sustainability, Journal Year: 2022, Volume and Issue: 14(18), P. 11637 - 11637
Published: Sept. 16, 2022
Plastic waste accumulation has been recognized as one of the most critical challenges modern societies worldwide. Traditional management practices include open burning, landfilling, and incineration, resulting in greenhouse gas emissions economic loss. In contrast, emerging techniques for plastic microwave-assisted conversion, plasma-assisted supercritical water photo reforming to obtain high-value products. Problems with poorly managed are particularly serious developing countries. This review article examines strategies production various high-value-added products from waste. Additionally, uses different sectors, such construction, fuel production, wastewater treatment, electrode materials, carbonaceous nanomaterials, other reviewed. It observed that there is a pressing need utilize circular economy recycling value-added More specifically, limited knowledge on conversion mechanisms efficiency. Therefore, this will help highlight negative environmental impacts importance management.
Language: Английский
Citations
79
Chemosphere, Journal Year: 2022, Volume and Issue: 294, P. 133723 - 133723
Published: Jan. 24, 2022
Language: Английский
Citations
75
Biotechnology Advances, Journal Year: 2022, Volume and Issue: 60, P. 107999 - 107999
Published: June 3, 2022
Language: Английский
Citations
71
International Journal of Environmental Research and Public Health, Journal Year: 2023, Volume and Issue: 20(4), P. 2959 - 2959
Published: Feb. 8, 2023
Environmental challenges related to the mismanagement of plastic waste became even more evident during COVID-19 pandemic. The need for new solutions regarding use plastics came forefront again. Polyhydroxyalkanoates (PHA) have demonstrated their ability replace conventional plastics, especially in packaging. Its biodegradability and biocompatibility makes this material a sustainable solution. cost PHA production some weak physical properties compared synthetic polymers remain as main barriers its implementation industry. scientific community has been trying solve these disadvantages associated with PHA. This review seeks frame role bioplastics substitutes future. It is focused on bacterial PHA, highlighting current limitations process and, consequently, industry, well reviewing alternatives turn into circular economy.
Language: Английский
Citations
71
Biotechnology Advances, Journal Year: 2024, Volume and Issue: 71, P. 108320 - 108320
Published: Jan. 23, 2024
Language: Английский
Citations
62