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논문 기본 정보

자료유형
학술저널
저자정보
Kim Ye-Jin (Department of Bioengineering and Technology, Kangwon National University, Chuncheon 24341, Republic of KoreaDepartment of Biohealth-Machinery Convergence Engineering, Kangwon National Univer) Lee Jang-Sub (Department of Bioengineering and Technology, Kangwon National University, Chuncheon 24341, Republic of KoreaDepartment of Biohealth-Machinery Convergence Engineering, Kangwon National Univer) Park Jeong-Ann (Department of Environmental Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea) Kim Hyun-Ouk (Department of Bioengineering and Technology, Kangwon National University, Chuncheon 24341, Republic of KoreaDepartment of Biohealth-Machinery Convergence Engineering, Kangwon National Univer) Lim Kwang Suk (Department of Bioengineering and Technology, Kangwon National University, Chuncheon 24341, Republic of KoreaDepartment of Biohealth-Machinery Convergence Engineering, Kangwon National Univer) Ha Suk-Jin (Department of Bioengineering and Technology, Kangwon National University, Chuncheon 24341, Republic of KoreaDepartment of Biohealth-Machinery Convergence Engineering, Kangwon National Univer)
저널정보
한국미생물생명공학회 한국미생물·생명공학회지 한국미생물·생명공학회지 제52권 제2호
발행연도
2024.6
수록면
189 - 194 (6page)
DOI
10.48022/mbl.2404.04005

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초록· 키워드

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Plastics are consistently produced owing to their practicality and convenience. Unmanaged plastics enter the oceans, where they adversely impact marine life, and their degradation into nano-plastics due to sunlight and weathering is of concern for all living beings. Nano-plastics affect humans via the food chain, emphasizing the necessity for effective solutions. Microbial biodegradation has been suggested as a solution, offering the advantages of minimal environmental impact and the utilization of decomposition byproducts in microbial metabolic pathways. In this study, fifty-seven bacterial strains were isolated and identified from a waste-treatment facility. Cultivation in a minimum medium with low-density polyethylene (LDPE) beads as the sole carbon source resulted in the selection of the LDPE-degrading strain Acinetobacter guillouiae PL211. The selected strain was cultured at high cell density with LDPE as a carbon source, and Fourier transform infrared (FT-IR) analysis confirmed chemical changes on the LDPE bead’s surface. Field-emission scanning electron microscopy (FE-SEM) analysis revealed substantial biodegradation of the LDPE surface. These results demonstrated the capability of A. guillouiae PL211 to biodegrade LDPE beads. This discovery demonstrates the potential of an environmentally friendly process to addressing polyethylene waste issues.

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