PMID- 37212224 OWN - NLM STAT- MEDLINE DCOM- 20230523 LR - 20230523 IS - 1872-2075 (Electronic) IS - 1000-3061 (Linking) VI - 39 IP - 5 DP - 2023 May 25 TI - [Screening and identification of a polyurethane-degrading bacterium G-11 and its plastic degradation characteristics]. PG - 1963-1975 LID - 10.13345/j.cjb.220976 [doi] AB - Polyurethane (PUR) plastics is widely used because of its unique physical and chemical properties. However, unreasonable disposal of the vast amount of used PUR plastics has caused serious environmental pollution. The efficient degradation and utilization of used PUR plastics by means of microorganisms has become one of the current research hotspots, and efficient PUR degrading microbes are the key to the biological treatment of PUR plastics. In this study, an Impranil DLN-degrading bacteria G-11 was isolated from used PUR plastic samples collected from landfill, and its PUR-degrading characteristics were studied. Strain G-11 was identified as Amycolatopsis sp. through 16S rRNA gene sequence alignment. PUR degradation experiment showed that the weight loss rate of the commercial PUR plastics upon treatment of strain G-11 was 4.67%. Scanning electron microscope (SEM) showed that the surface structure of G-11-treated PUR plastics was destroyed with an eroded morphology. Contact angle and thermogravimetry analysis (TGA) showed that the hydrophilicity of PUR plastics increased along with decreased thermal stability upon treatment by strain G-11, which were consistent with the weight loss and morphological observation. These results indicated that strain G-11 isolated from landfill has potential application in biodegradation of waste PUR plastics. FAU - Jiang, Zhitong AU - Jiang Z AD - Key Laboratory of Agricultural Environment Microbiology of the Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. FAU - Chen, Xue AU - Chen X AD - Key Laboratory of Agricultural Environment Microbiology of the Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. FAU - Lei, Jinhui AU - Lei J AD - Key Laboratory of Agricultural Environment Microbiology of the Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. FAU - Xue, Huizhen AU - Xue H AD - Key Laboratory of Agricultural Environment Microbiology of the Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. FAU - Zhang, Bo AU - Zhang B AD - Key Laboratory of Agricultural Environment Microbiology of the Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. FAU - Xu, Xiaofan AU - Xu X AD - Key Laboratory of Agricultural Environment Microbiology of the Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. FAU - Geng, Huijing AU - Geng H AD - Key Laboratory of Agricultural Environment Microbiology of the Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. FAU - Li, Zhoukun AU - Li Z AD - Key Laboratory of Agricultural Environment Microbiology of the Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. FAU - Yan, Xin AU - Yan X AD - Key Laboratory of Agricultural Environment Microbiology of the Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. FAU - Dong, Weiliang AU - Dong W AD - State Key Laboratory of Material Chemical Engineering, College of Biology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211899, Jiangsu, China. FAU - Cao, Hui AU - Cao H AD - Key Laboratory of Agricultural Environment Microbiology of the Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. FAU - Cui, Zhongli AU - Cui Z AD - Key Laboratory of Agricultural Environment Microbiology of the Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. AD - Frontier Interdisciplinary Research Institute, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. LA - chi PT - English Abstract PT - Journal Article PL - China TA - Sheng Wu Gong Cheng Xue Bao JT - Sheng wu gong cheng xue bao = Chinese journal of biotechnology JID - 9426463 RN - 0 (Plastics) RN - 0 (Polyurethanes) RN - 0 (RNA, Ribosomal, 16S) SB - IM MH - *Plastics/metabolism MH - *Polyurethanes/chemistry MH - RNA, Ribosomal, 16S MH - Bacteria/genetics MH - Biodegradation, Environmental OTO - NOTNLM OT - Amycolatopsis OT - biodegradation OT - plastic pollution OT - polyurethane EDAT- 2023/05/22 06:42 MHDA- 2023/05/23 06:42 CRDT- 2023/05/22 05:53 PHST- 2023/05/23 06:42 [medline] PHST- 2023/05/22 06:42 [pubmed] PHST- 2023/05/22 05:53 [entrez] AID - 10.13345/j.cjb.220976 [doi] PST - ppublish SO - Sheng Wu Gong Cheng Xue Bao. 2023 May 25;39(5):1963-1975. doi: 10.13345/j.cjb.220976.