Microbial Degradation of Plastics and Its Biotechnological Advancement

Kumari, Aruna; Chaudhary, Doongar R.; Jha, Bhavanath

doi:10.1007/978-3-030-48973-1_1

Cited by 4 publications

(4 citation statements)

References 127 publications

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“…The ongoing argument revolves around the differentiation of plastisphere communities, microbial communities that develop on plastic surfaces in saltwater, regarding polymer kinds and other surfaces. The dissimilarities within the plastisphere community appear to be influenced mainly by environmental factors rather than the specific type of polymer present [36].…”

Section: Weight Lossmentioning

confidence: 99%

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Ecotoxicological Impact of Bioplastics Biodegradation: A Comprehensive Review

Ali,

Isha,

Chang

2023

Preprint

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The emergence of bioplastics presents a promising solution to the environmental impact of the plastics industry. Biodegradable plastics are engineered to degrade in aquatic or soil environments. Biodegradable bioplastics can degrade in these conditions, according to sustainability standards, and have a low environmental impact. However, not all bioplastics are completely biodegradable, and some, like petrochemical-based plastics, may contribute to plastic pollution. In this comprehensive review, we identify the biodegradability of significant bioplastics, including polyhydroxyalkanoates (PHA), poly(lactic acid) (PLA), poly(butylene succinate) (PBS), and PBS-co-adipate (PBSA) in different environmental conditions given in the literature. Microbe-based bioplastics made from renewable materials like microalgae provide a sustainable alternative due to their high biodegradability compared to other bioplastics. However, we recognize concerns regarding the ecotoxicological impact of these alternatives on soil and aquatic organisms and recommend future research to observe the ecotoxicological behavior of biodegradation by-products.

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Section: Weight Lossmentioning

confidence: 99%

“…According to recent research, it has been indicated that marine microorganisms do not play a significant role in the degrading process of petrochemical-based plastics [36]. Nevertheless, it is widely acknowledged that they can discharge dissolved organic carbon (DOC), potentially augmenting bacterial activity inside marine ecosystems.…”

Section: Weight Lossmentioning

confidence: 99%

Ecotoxicological Impact of Bioplastics Biodegradation: A Comprehensive Review

Ali,

Isha,

Chang

2023

Preprint

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“… Secondary sources. The establishments included include acupuncturists, dentistry clinics, animal and slaughterhouses, blood donation camps, immunization centers, cosmetic piercing studios, and crippled institutes [19]. The significant sources include hypodermic needles, broken vials, ampoules, intravenous set needles, dressings, cotton, bandages, gauze contaminated with body fluids or blood, masks and gloves contaminated with body fluids or blood, blood pressure gauges, broken thermometers, spilt medicines, waste an aesthetic gases, cleaners, spent disinfectants, organs, tissues, fetuses, body parts, spilled mercury, and similar item [20].…”

Section: Additional Biomedical Waste Sourcesmentioning

confidence: 99%

Biomedical waste management and their effects on the Environment: A review

Qaissar Guti Omo,

Najmaldin Ezaldin Hassan

2024

World J. Adv. Eng. Technol. Sci.

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Biomedical waste has the potential to be hazardous and cause environmental pollution, therefore its proper management and disposal, especially in hospitals and healthcare facilities, plays an important role in protecting both the environment and public health. Biomedical waste encompasses a diverse array of materials originating from patient care, research activities, and medical interventions, and inadequate handling poses significant hazards. Common disposal methods, such as incineration, have been associated with environmental contamination and the emission of harmful fumes. Biomedical waste poses health risks through the spread of infectious diseases, particularly via sharps injuries, and the release of toxic compounds into the environment. The hazardous category includes infectious, potentially hazardous, and radioactive waste, with around 10% of hospital waste deemed infectious according to the World Health Organization. Various disposal techniques, including burning, autoclaving, microwaving, shredding, landfilling, and chemical treatments, are employed globally, each with its own benefits and limitations. In this review, a classification of the various categories of biomedical waste and its effects, treatment and disposal methods are discussed. In summary, the substantial impact of biomedical waste on the environment and public health necessitates careful handling and adherence to regulations. The implementation of sustainable waste management practices, promotion of recycling, and adoption of innovative technologies are essential for mitigating the adverse effects of biomedical waste on the environment and local communities.

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“…The depolymerization products (oligomers, dimer, and monomers) are transported through the cytoplasmic membrane and are used as an energy source via the β-oxidation and the tricarboxylic acid (TCA) cycles thereby releasing CO 2 and water. Adapted from [ 126 ].…”

Section: Abiotic and Biotic Polymer Degradation Mechanismsmentioning

confidence: 99%

Biodegradation of Biodegradable Polymers in Mesophilic Aerobic Environments

Bher

Mayekar

Auras

et al. 2022

IJMS

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Finding alternatives to diminish plastic pollution has become one of the main challenges of modern life. A few alternatives have gained potential for a shift toward a more circular and sustainable relationship with plastics. Biodegradable polymers derived from bio- and fossil-based sources have emerged as one feasible alternative to overcome inconveniences associated with the use and disposal of non-biodegradable polymers. The biodegradation process depends on the environment’s factors, microorganisms and associated enzymes, and the polymer properties, resulting in a plethora of parameters that create a complex process whereby biodegradation times and rates can vary immensely. This review aims to provide a background and a comprehensive, systematic, and critical overview of this complex process with a special focus on the mesophilic range. Activity toward depolymerization by extracellular enzymes, biofilm effect on the dynamic of the degradation process, CO2 evolution evaluating the extent of biodegradation, and metabolic pathways are discussed. Remarks and perspectives for potential future research are provided with a focus on the current knowledge gaps if the goal is to minimize the persistence of plastics across environments. Innovative approaches such as the addition of specific compounds to trigger depolymerization under particular conditions, biostimulation, bioaugmentation, and the addition of natural and/or modified enzymes are state-of-the-art methods that need faster development. Furthermore, methods must be connected to standards and techniques that fully track the biodegradation process. More transdisciplinary research within areas of polymer chemistry/processing and microbiology/biochemistry is needed.

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Microbial Degradation of Plastics and Its Biotechnological Advancement

Cited by 4 publications

References 127 publications

Ecotoxicological Impact of Bioplastics Biodegradation: A Comprehensive Review

Ecotoxicological Impact of Bioplastics Biodegradation: A Comprehensive Review

Biomedical waste management and their effects on the Environment: A review

Biodegradation of Biodegradable Polymers in Mesophilic Aerobic Environments

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