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Item Metadata only A study of disposal of plastics by biological method(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Ake-anong Jangbua; Krisda Suchiva; Apinya Assavanig; Sauvarop BualekThe present work involved study of biodegradation of starch-plastics blends and commercially established type of biodegradable plastics, by the action of microorganisms, namely Bacillus subtilis (Bs) and Pseudomonas aeruginosa (Pa), and studies..., it was not clear whether Pa could actually cause biodegradation of starch-plastics blends. For the studies of action of termite on starch plastics blends, starch-plastics blends having different starch contents (25%, 50%, and 75% by weight) were preparedItem Metadata only รายงานวิจัยฉบับสมบูรณ์โครงการวิจัย การพัฒนาวัสดุย่อยสลายได้ทางชีวภาพโดยการผสมพอลิบิวทิลีนอะดิเพท-โค-เทเรฟทาเลทกับเม็ดแป้งที่ผ่านกระบวนการด้วยเอนไซม์(2554) อำนาจ เจรีรัตน์; มหาวิทยาลัยมหิดล. วิทยาเขตกาญจนบุรี. สาขาวิชาอุตสาหกรรมอาหารItem Metadata only Development of Biodegradable Thermosetting Plastic Using Dialdehyde Pineapple Stem Starch(2023-09-01) Tessanan W.; Phinyocheep P.; Amornsakchai T.; Mahidol Universitycontents ranging from 10% to 90%. Leveraging these dialdehyde starches, thermosetting plastics were meticulously developed by incorporating glycerol as a plasticizer. Concurrently, unmodified pineapple stem starch was employed as a control to produce... thermoplastic material under identical conditions. The objective of streamlining the processing steps was pursued by adopting a direct hot compression molding technique. This enabled the transformation of starch powders into plastic sheets without the needItem 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 Identification of a plastic-degrading enzyme from Cryptococcus nemorosus and its use in self-degradable plastics(2023-01-01) Arunrattanamook N.; Mhuantong W.; Paemanee A.; Reamtong O.; Hararak B.; Champreda V.; Mahidol UniversityAbstract: For decades, plastic waste management has been one of the major ecological challenges of our society. Despite the introduction of biodegradable alternatives such as polylactic acid (PLA), their beneficial environmental impact is limited... by the requirement of specific compost facility as biodegradation of PLA in natural environment occurs at a very slow rate. In this work, a plastic-degrading enzyme was utilized to facilitate degradation process. Genomic and proteomic tools were employed to identifyItem Metadata only Sustainable Materials with Improved Biodegradability and Toughness from Blends of Poly(Lactic Acid), Pineapple Stem Starch and Modified Natural Rubber(2024-01-01) Tessanan W.; Phinyocheep P.; Amornsakchai T.; Tessanan W.; Mahidol UniversityPoly(lactic acid) (PLA), derived from renewable resources, plays a significant role in the global biodegradable plastic market. However, its widespread adoption faces challenges, including high brittleness, hydrophobicity, limited biodegradability... indicated improved compatibility between components. Remarkably, the PLA ternary blends demonstrated superior water resistance and proper biodegradability compared to binary blends. These findings highlight the potential of bio-based plastics, such as PLAItem Metadata only Biodegradation of Di-2-Ethylhexyl Phthalate by Mangrove Sediment Microbiome Impacted by Chronic Plastic Waste(2025-02-01) Saeng-kla K.; Mhuantong W.; Termsaithong T.; Pinyakong O.; Sonthiphand P.; Saeng-kla K.; Mahidol UniversityPlastic pollution through the leaching of di(2-ethylhexyl) phthalate (DEHP), a widely used plasticizer, has led to the emergence of mangrove pollution. This study aimed to assess the DEHP removal efficiency of indigenous mangrove sediment... microbiomes and identify key DEHP degraders using microcosm construction and metagenomic analysis. During the 35-day incubation period, the indigenous mangrove sediment microbiome, affected by chronic plastic pollution, demonstrated a 99% degradationItem Metadata only A critical review on biodegradable food packaging for meat: Materials, sustainability, regulations, and perspectives in the EU(2023-01-01) Siddiqui S.A.; Sundarsingh A.; Bahmid N.A.; Nirmal N.; Denayer J.F.M.; Karimi K.; Mahidol UniversityThe development of biodegradable packaging is a challenge, as conventional plastics have many advantages in terms of high flexibility, transparency, low cost, strong mechanical characteristics, and high resistance to heat compared with most... biodegradable plastics. The quality of biodegradable materials and the research needed for their improvement for meat packaging were critically evaluated in this study. In terms of sustainability, biodegradable packagings are more sustainable than conventionalItem Metadata only Exploring untapped bacterial communities and potential polypropylene-degrading enzymes from mangrove sediment through metagenomics analysis(2024-01-01) Pawano O.; Jenpuntarat N.; Streit W.R.; Pérez-García P.; Pongtharangkul T.; Phinyocheep P.; Thayanukul P.; Euanorasetr J.; Intra B.; Pawano O.; Mahidol UniversityThe versatility of plastic has resulted in huge amounts being consumed annually. Mismanagement of post-consumption plastic material has led to plastic waste pollution. Biodegradation of plastic by microorganisms has emerged as a potential solution... were promoted during the enrichment. Additionally, shotgun metagenomics was used to investigate enzymes involved in plastic biodegradation. The results revealed the presence of various putative plastic-degrading enzymes in the mangrove soil, includingItem Metadata only Biosynthesis of polyhydroxyalkanoate bioplastic from glycerol by engineered Escherichia coli(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Chitwadee Phithakrotchanakoon; Kusol Pootanakit; Sutipa Tanapongpipat; Wipa Chungjatupornchai; Apinunt UdomkitPolyhydroxyalkanoates (PHAs) are potentially used as bio-plastics. However, the high cost of PHAs limits their use in the commodity market. Crude glycerol is an alternative carbon source for PHAs production. Engineered Escherichia coli strains were