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Item Metadata only Biodegradation of polypropylene plastics in vitro and natural condition by Streptomyces sp. isolated from plastic-contaminated sites(2024-08-01) Wichatham K.; Piyaviriyakul P.; Boontanon N.; Surinkul N.; Visvanathan C.; Fujii S.; Boontanon S.K.; Wichatham K.; Mahidol UniversityMost plastic degradation studies are conducted under controlled laboratory conditions. The current study investigated the ability to degrade Polypropylene (PP) plastic by Streptomyces ardesiacus strain NBI0111 under both laboratory and natural... conditions. This strain exhibited the ability to degrade PP when cultured in BH medium and using PP plastics as carbon sources. After a 90-day incubation period, the weight loss of PP plastics reached 17.52 % (p < 0.05). The surface of the PP plastic showedItem Metadata only Potential Bacteria Isolated from Contaminated Sites as Bio-degraders of Various Types of Plastic(2023-12-01) Wichatham K.; Piyaviriyakul P.; Boontanon N.; Surinkul N.; Boontanon S.K.; Wichatham K.; Mahidol Universityin the environment is still a major concern. Therefore, exploring and developing sustainable and environmentally safe techniques, such as biodegradation using potential bacteria, can help mitigate plastic pollution and provide a viable solution. The purpose... of biodegradation abilities to degrade various types of plastics, including Polypropylene (PP), Polystyrene (PS), Polyethylene (PE), Polyethylene terephthalate (PET), and Polylactic acid (PLA) (Bioplastic), as measured by the diameters of the clear zones surroundingItem Metadata only Development of a plastic waste treatment process by combining deep eutectic solvent (DES) pretreatment and bioaugmentation with a plastic-degrading bacterial consortium(2023-10-15) Krainara S.; Mistry A.N.; Malee C.; Chavananikul C.; Pinyakong O.; Assavalapsakul W.; Jitpraphai S.M.; Kachenchart B.; Luepromchai E.; Mahidol Universitywas to develop an effective PET and PLA waste treatment process that involves pretreatment with deep eutectic solvent (DES) followed by biodegradation with a plastic-degrading bacterial consortium in a composting system. The DES used was a mixture of choline... the bacterial consortium were selected based on their ability to biodegrade PET, PLA, and plasticizer. The plastic samples (a PET bottle, PLA cup, and PLA film) were pretreated with DES through a dip-coating method. The DES-coated plastic samples exhibitedItem Metadata only Development of defined bacterial consortium as a bioaugmentation product for degrading mixed plastic wastes and plasticizers in simulated landfill(2025-10-01) Krainara S.; Chavananikul C.; Mistry A.N.; Assavalapsakul W.; Jitpraphai S.M.; Kachenchart B.; Khondee N.; Luepromchai E.; Pinyakong O.; Krainara S.; Mahidol Universitythe levels of EA63 and A9 in an optimized ratio within the consortium improved the degradation efficiency. The effects of temperature, pH, and salinity on plastic and PAE biodegradation were evaluated. At 40 ± 3 °C, the consortium efficiently degraded PLA (31...Plastics and plasticizers pose significant waste management challenges, especially in landfills where degradation is slow. A plastic-degrading bacterial consortium offers a promising solution to accelerate this process. In this study, a bacterialItem Metadata only Unveiling a novel Neobacillus strain: Optimization, metabolomic, and genomic insights into polyvinyl chloride microplastic biodegradation(2026-06-01) Choonut A.; Wongfaed N.; Poolpol A.; Jumpa T.; Boonlue S.; Wantala K.; Pinyakong O.; Reungsang A.; Plangklang P.; Sittijunda S.; Choonut A.; Mahidol UniversityPolyvinyl chloride microplastics (PVC-MPs) are persistent environmental contaminants requiring effective remediation strategies. This study investigated microbial-mediated biodegradation by isolating bacteria from landfill soil samples... with prolonged plastic waste exposure. PVC microplastics (Mn ≈ 35,000 g/mol, Mw ≈ 62,000 g/mol) were used as the substrate. Two microbial consortia, CPVC-KKU2 and CPVC-KKU6, demonstrated acid and lipase production capabilities. Subsequent isolation yielded fiveItem Metadata only Sustainable packaging transitions in cement production: Exploring circular economy pathways and intergenerational justice in emerging economies(2026-12-01) Shanta M.H.; Tanha T.; Roshid M.M.; Meinhold R.; Marcão R.; Santos V.; Martinho F.; Waaje A.; Shanta M.H.; Mahidol UniversityAchieving sustainability in resource-intensive industries such as cement production requires a transition away from synthetic plastic packaging toward biodegradable alternatives that reduce long-term environmental harm. This study evaluates... and ranks feasible biodegradable packaging options for cement manufacturers using an integrated multi-criteria decision-making (MCDM) framework. Entropy and Criteria Importance Through Intercriteria Correlation (CRITIC) weighting techniques are combinedItem Metadata only Sustainable innovative technologies for a circular economy: Artificial photosynthesis, photobiorefineries, bioplastics, waste-to-wealth, and thermoelectric generators(2025-11-01) Sundaram G.A.; Kanniah R.; Sivakumar M.; Antonisamy J.D.s.; Sundaram G.A.; Mahidol Universityresources. In materials, renewable polymers derived from bio-based feedstocks and advances in bioplastics offer biodegradable, eco-friendly alternatives to conventional plastics, minimizing waste and supporting sustainable manufacturing. Waste-to-wealthItem Metadata only The influence of mixture proportions of polypropylene, polyvinyl chloride, and polyester microplastics on methane production: Integrative analysis of microbial diversity, enzymatic and metabolic profiles(2025-10-01) Poosrisom S.; Wongfaed N.; Jumpa T.; Chiangjong W.; Xia A.; Reungsang A.; Sittijunda S.; Poosrisom S.; Mahidol Universityof peroxidase, triacylglycerol lipase, haloalkane dehalogenase, and carboxylesterase enzymes, indicating potential microplastic biodegradation capabilities within the microbial communities. LC-MS metabolomic analysis revealed distinct clustering patterns... with altered levels of metabolites related to AD stages, plastic degradation, and reduced quorum-sensing molecules under MP conditions, indicating disrupted microbial communication. These findings provide the first systematic investigation of mixed microplastic