Environmental impacts of microplastic and role of plastisphere microbes in the biodegradation and upcycling of microplastic

Chemosphere, Год журнала: 2023, Номер 334, С. 138928 - 138928

Опубликована: Май 19, 2023

Язык: Английский

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Exploiting Polyhydroxyalkanoates for Biomedical Applications

Polymers, Год журнала: 2023, Номер 15(8), С. 1937 - 1937

Опубликована: Апрель 19, 2023

Polyhydroxyalkanoates (PHA) are biodegradable plastic. Numerous bacteria produce PHAs under environmental stress conditions, such as excess carbon-rich organic matter and limitations of other nutritional elements potassium, magnesium, oxygen, phosphorus, nitrogen. In addition to having physicochemical properties similar fossil-fuel-based plastics, have unique features that make them ideal for medical devices, easy sterilization without damaging the material itself dissolution following use. can replace traditional plastic materials used in biomedical sector. be a variety applications, including implants, drug delivery wound dressings, artificial ligaments tendons, bone grafts. Unlike not manufactured from petroleum products or fossil fuels are, therefore, environment-friendly. this review, recent overview applications with special emphasis on sectors, delivery, healing, tissue engineering, biocontrols, discussed.

Язык: Английский

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Production of short-chain fatty acids (SCFAs) as chemicals or substrates for microbes to obtain biochemicals

Biotechnology for Biofuels and Bioproducts, Год журнала: 2023, Номер 16(1)

Опубликована: Июнь 3, 2023

Carboxylic acids have become interesting platform molecules in the last years due to their versatility act as carbon sources for different microorganisms or precursors chemical industry. Among carboxylic acids, short-chain fatty (SCFAs) such acetic, propionic, butyric, valeric, and caproic can be biotechnologically produced an anaerobic fermentation process from lignocellulose other organic wastes of agricultural, industrial, municipal origin. The biosynthesis SCFAs is advantageous compared synthesis, since latter relies on fossil-derived raw materials, expensive toxic catalysts harsh conditions. This review article gives overview complex waste products. Different applications are explored how these considered a source bioproducts, aiming at development circular economy. use requires adequate concentration separation processes that also addressed this review. Various bacteria oleaginous yeasts efficiently SCFA mixtures derived fermentation, attribute exploited microbial electrolytic cells produce biopolymers oils polyhydroxyalkanoates. Promising technologies conversion into bioproducts outlined with recent examples, highlighting future bioeconomy.

Язык: Английский

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Biodegradable Polymers—a Review on Properties, Processing, and Degradation Mechanism

Circular Economy and Sustainability, Год журнала: 2023, Номер 4(1), С. 339 - 362

Опубликована: Июль 11, 2023

Язык: Английский

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A review on microbes mediated resource recovery and bioplastic (polyhydroxyalkanoates) production from wastewater

Microbial Cell Factories, Год журнала: 2024, Номер 23(1)

Опубликована: Июль 1, 2024

Abstract Background Plastic is widely utilized in packaging, frameworks, and as coverings material. Its overconsumption slow degradation, pose threats to ecosystems due its toxic effects. While polyhydroxyalkanoates (PHA) offer a sustainable alternative petroleum-based plastics, their production costs present significant obstacles global adoption. On the other side, multitude of household industrial activities generate substantial volumes wastewater containing both organic inorganic contaminants. This not only poses threat but also presents opportunities get benefits from circular economy. Main body abstract Production bioplastics may be improved by using nutrients minerals feedstock for microbial fermentation. Strategies like feast-famine culture, mixed-consortia integrated processes have been developed PHA highly polluted with high loads. Various process parameters loading rate, content (volatile fatty acids), dissolved oxygen, operating pH, temperature critical roles accumulation biomass. Research advances are going on downstream recovery utilizing combination physical chemical (halogenated solvents, surfactants, green solvents) methods. review highlights recent developments upcycling resources into PHA, encompassing various strategies, processing methodologies, techno-economic analyses. Short conclusion Organic carbon nitrogen promising, cost-effective source producing bioplastic. Previous attempts focused enhancing productivity through optimizing culture systems growth conditions. However, despite technological progress, challenges persist, such low productivity, intricate processing, scalability issues, properties resulting PHA. Graphical

Язык: Английский

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Resource recovery of high value-added products from wastewater: Current status and prospects

Bioresource Technology, Год журнала: 2024, Номер 398, С. 130521 - 130521

Опубликована: Март 2, 2024

Язык: Английский

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Synergistic enhancement of PLA/PHA bio-based films using tempo-oxidized cellulose nanofibers, graphene oxide, and clove oil for sustainable packaging

Materials Today Communications, Год журнала: 2025, Номер unknown, С. 111531 - 111531

Опубликована: Янв. 1, 2025

Язык: Английский

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Production and characterization of polyhydroxyalkanoates by Halomonas alkaliantarctica utilizing dairy waste as feedstock

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Дек. 15, 2023

Currently, the global demand for polyhydroxyalkanoates (PHAs) is significantly increasing. PHAs are produced by several bacteria that an alternative source of synthetic polymers derived from petrochemical refineries. This study established a simple and more feasible process PHA production Halomonas alkaliantarctica using dairy waste as only carbon source. The data confirmed analyzed halophile could metabolize cheese whey (CW) mother liquor (CWML) into biopolyesters. highest yield was 0.42 g/L in cultivation supplemented with CWML. Furthermore, it proved structure depended on type by-product manufacturing, its concentration, culture time. results revealed H. produce P(3HB-co-3HV) copolymer cultivations CW at 48 h 72 without adding any precursors. Based obtained physicochemical thermal analyses, extracted reported to have properties suitable various applications. Overall, this described promising approach valorizing future strategy industrial management high value microbial biopolymers.

Язык: Английский

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Valorization of food waste derived anaerobic digestate into polyhydroxyalkanoate (PHA) using Thauera mechernichensis TL1

Waste Management, Год журнала: 2023, Номер 171, С. 248 - 258

Опубликована: Сен. 6, 2023

Язык: Английский

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Bio-Based and Biodegradable Polymeric Materials for a Circular Economy

Polymers, Год журнала: 2024, Номер 16(21), С. 3015 - 3015

Опубликована: Окт. 28, 2024

Nowadays, plastic contamination worldwide is a concerning reality that can be addressed with appropriate society education as well looking for innovative polymeric alternatives based on the reuse of waste and recycling circular economy point view, thus taking into consideration future world without quite impossible to conceive. In this regard, in review, we focus sustainable materials, biodegradable bio-based polymers, additives, micro/nanoparticles used obtain new environmentally friendly polymeric-based materials. Although polymers possess poorer overall properties than traditional ones, they have gained huge interest many industrial sectors due their inherent biodegradability natural environments. Therefore, several strategies been proposed improve extend applications. Blending strategies, development composites nanocomposites, shown promising perspectives improving performances, emphasizing biopolymeric blend formulations micro nanoparticles produce fully The Review also summarizes recent developments blends, composites, nanocomposite plasticization, particular naturally derived plasticizers chemical modifications increase compatibility matrices. current state art most important reviewed, mainly focusing synthesis processing methods scalable sector, such melt solution blending approaches like melt-extrusion, injection molding, film forming electrospinning, among others, neglecting degradation processes.

Язык: Английский

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