文献详情
Biodegradation of polystyrene wastes in yellow mealworms (larvae of Tenebrio molitor Linnaeus): Factors affecting biodegradation rates and the ability of polystyrene-fed larvae to complete their life cycle
文献类型期刊
作者Yang, Shan-Shan[1];Brandon, Anja Malawi[2];Flanagan, James Christopher Andrew[3];Yang, Jun[4];Ning, Daliang[5];Cai, Shen-Yang[6];Fan, Han-Qing[7];Wang, Zhi-Yue[8];Ren, Jie[9];Benbow, Eric[10];Ren, Nan-Qi[11];Waymouth, Robert M.[12];Zhou, Jizhong[13];Criddle, Craig S.[14];Wu, Wei-Min[15]
机构
通讯作者Criddle, CS; Wu, WM (reprint author), Stanford Univ, Ctr Sustainable Dev & Global Competitiveness, William & Cloy Codiga Resource Recovery Ctr, Dept Civil & Environm Engn, Stanford, CA 94305 USA.
来源信息年:2018  卷:191  页码范围:979-989  
期刊信息CHEMOSPHERE影响因子和分区  ISSN:0045-6535
关键词Plastic wastes; Polystyrene; Biodegradation; Mealworms; Tenebrio molitor
增刊正刊
摘要Commercial production of polystyrene (PS)-a persistent plastic that is not biodegradable at appreciable rates in most environments-has led to its accumulation as a major contaminant of land, rivers, lakes, and oceans. Recently, however, an environment was identified in which PS is susceptible to rapid biodegradation: the larval gut of Tenebrio molitor Linnaeus (yellow mealworms). In this study, we evaluate PS degradation capabilities of a previously untested strain of T. molitor and assess its survival and PS biodegradation rates for a range of conditions (two simulated food wastes, three temperatures, seven PS waste types). For larvae fed PS alone, the %PS removed in the short (12-15 h) residence time of the mealworm gut gradually increased for 2-3 weeks then stabilized at values up to 65%. Thirty two-day survival rates were >85% versus 54% for unfed larvae. For mealworms fed similar to 10% w/w PS and similar to 90% bran, an agricultural byproduct, rates of PS degradation at 25 degrees C nearly doubled compared to mealworms fed PS alone. Polymer residues in the frass showed evidence of partial depolymerization and oxidation. All of the tested PS wastes degraded, with the less dense foams degrading most rapidly. Mealworms fed bran and PS completed all life cycle stages (larvae, pupae, beetles, egg), and the second generation had favorable PS degradation, opening the door for selective breeding. (C) 2017 Elsevier Ltd. All rights reserved.
收录情况SCIE(WOS:000418208000107)  EI(20174404330194)  PubMed(29145143)  
所属部门化学学院
链接地址https://www.scopus.com/inward/record.uri?eid=2-s2.0-85032339250&doi=10.1016%2fj.chemosphere.2017.10.117&partnerID=40&md5=182eb7662e15c7375fb2c233929e6a7a
DOI10.1016/j.chemosphere.2017.10.117
百度学术Biodegradation of polystyrene wastes in yellow mealworms (larvae of Tenebrio molitor Linnaeus): Factors affecting biodegradation rates and the ability of polystyrene-fed larvae to complete their life cycle
语言外文
被引频次11
人气指数637
下载次数7
浏览次数629
基金Woods Institute for Environment at Stanford University [1197667-10-WTAZB]; US National Science Foundation SBIR award [1648559]; Harbin Institute of Technology (HIT), Harbin, China
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