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首页> 外文期刊>Environmental Science & Technology >Biodegradation of Polyethylene and Polystyrene by Greater Wax Moth Larvae (Galleria mellonella L) and the Effect of Co-diet Supplementation on the Core Gut Microbiome
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Biodegradation of Polyethylene and Polystyrene by Greater Wax Moth Larvae (Galleria mellonella L) and the Effect of Co-diet Supplementation on the Core Gut Microbiome

机译：大蜡蛾幼虫（Galleria mellonella L）对聚乙烯和聚苯乙烯的生物降解以及共饮食对核心肠微生物组的影响

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摘要

Plastics waste and microplastics including polyethylene (PE) and polystyrene (PS) have been an environmental concern for years. Recent research has revealed that larvae of Galleria mellonella are capable of biodegrading low density PE film. In this study, we tested the feasibility of enhancing larval survival and the effect of supplementing the co-diet on plastic degradation by feeding the larvae beeswax or wheat bran as a co-diet. Significant mass loss of plastic was observed over a 21-day period, i.e., with respective consumption of 0.88 and 1.95 g by 150 larvae fed only either PS or PE. The formation of C=0 and C-O containing functional groups and long chain fatty acids as the metabolic intermediates of plastics in the residual polymers indicated depolymerization and biodegradation. Supplementing beeswax and bran increased the survival rates but decreased the consumption of plastic. The changes in the gut microbiome revealed that Bacillus and Serratia were significantly associated with the PS and PE diets. Beeswax and bran showed different shaping effects on the core gut microbiome of larvae fed the PE and PS. These results suggest that supplementing the co-diet affected the physiological properties of the larvae and plastic biodegradation and shaped the core gut microbiome.
机译：多年来，包括聚乙烯（PE）和聚苯乙烯（PS）在内的塑料废料和微塑料一直是环境问题。最近的研究表明，马勒菌的幼虫能够生物降解低密度PE膜。在这项研究中，我们通过喂食幼虫蜂蜡或麦麸作为共同饮食，测试了提高幼虫存活率的可行性以及补充共同饮食对塑料降解的影响。在21天的时间内观察到塑料的大量质量损失，即仅饲喂PS或PE的150只幼虫分别消耗0.88和1.95 g。残余聚合物中塑料的代谢中间体，即含有C = 0和C-0的官能团和长链脂肪酸作为塑料的代谢中间体，表明其发生了解聚和生物降解。补充蜂蜡和麸皮可以提高存活率，但可以减少塑料的消耗。肠道微生物组的变化表明，芽孢杆菌和沙雷氏菌与PS和PE饮食显着相关。蜂蜡和麸皮对饲喂PE和PS的幼虫的核心肠微生物组表现出不同的成型效果。这些结果表明补充共同饮食会影响幼虫的生理特性和可塑性降解，并塑造核心肠道微生物组。

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  • 来源
    《Environmental Science & Technology》 |2020年第5期|2821-2831|共11页
  • 作者

    Yu Lou; Pererva Ekaterina; Shan-Shan Yang; Baiyun Lu; Bingfeng Liu; Nanqi Ren; Philippe F.-X. Corvini; Defeng Xing;

  • 作者单位

    State Key Laboratory oj Urban Water Resource and Environment School oj Environment Harbin Institute of Technology Harbin 150090 P. R. China;

    State Key Laboratory of Urban Water Resource and Environment School of Environment Harbin Institute of Technology Harbin 1S0090 P. R China;

    State Key Laboratory of Urban Water Resource and Environment School of Environment Harbin Institute of Technology Harbin 150090 P. R. China;

    State Key Laboratory of Urban Water Resource and Environment School of Environment Harbin Institute of Technology Harbtn 150090 P. R. China;

    State Key Laboratory of Urban Water Resource and Environment School of Environment Harbin Institute of Technology Harbin IS0090 P. R. China;

    State Key Laboratory of Urban Water Resource and Environment School of Environment Harbin Institute of Technology Harbin 150090 P R China;

    Corvini - Institute for Ecopreneurship School of Life Sciences University of Applied Sciences and Arts Northwestern Switzerland Muttenz CH-4132 Switzerland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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