气候变化领域集成服务门户(CCPortal): The rate of biodegradation of PHA bioplastics in the marine environment: A meta-study

CCPortal

DOI	10.1016/j.marpolbul.2019.03.020
	The rate of biodegradation of PHA bioplastics in the marine environment: A meta-study
	Dilkes-Hoffman L.S.; Lant P.A.; Laycock B.; Pratt S.
发表日期	2019
ISSN	0025326X
起始页码	15
结束页码	24
卷号	142
英文摘要	There is a reasonably extensive body of literature recording mass loss of polyhydroxyalkanoates (PHAs) (a class of biodegradable plastics) in the natural marine environment. However, to date, this research has been very disparate. Thus, it remains unclear what the timeframe for the biodegradation of such marine biodegradable plastics actually is. The aim of this work was to determine the rate of biodegradation of PHA in the marine environment and apply this to the lifetime estimation of PHA products. This provides the clarification required as to what ‘marine biodegradation of PHA’ means in practicality and allows the risks and benefits of using PHA to be transparently discussed. It was determined that the mean rate of biodegradation of PHA in the marine environment is 0.04–0.09 mg·day−1·cm−2 (p = 0.05) and that, for example, a PHA water bottle could be expected to take between 1.5 and 3.5 years to completely biodegrade. © 2019 Elsevier Ltd
英文关键词	Aquatic; Biodegradable; Biopolymer; Lifetime; PHB; Plastic
语种	英语
scopus关键词	Biodegradation; Biopolymers; Bottles; Elastomers; Plastics; Aquatic; Biodegradable; Biodegradable plastics; Lifetime; Lifetime estimation; Marine environment; Polyhydroxyalkanoates; Rate of biodegradations; Biodegradable polymers; polyhydroxyalkanoic acid; biodegradable plastic; polyhydroxyalkanoic acid; biodegradation; marine environment; marine pollution; meta-analysis; plastic waste; pollution monitoring; polymer; aquatic environment; Article; biodegradation; chemical analysis; concentration (parameter); environmental factor; environmental monitoring; marine environment; microbial community; physical chemistry; physical parameters; risk benefit analysis; bioremediation; chemistry; meta analysis; sea; Biodegradable Plastics; Biodegradation, Environmental; Oceans and Seas; Polyhydroxyalkanoates
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149981
作者单位	School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St Lucia, QLD 4072, Australia
推荐引用方式 GB/T 7714	Dilkes-Hoffman L.S.,Lant P.A.,Laycock B.,et al. The rate of biodegradation of PHA bioplastics in the marine environment: A meta-study[J],2019,142.
APA	Dilkes-Hoffman L.S.,Lant P.A.,Laycock B.,&Pratt S..(2019).The rate of biodegradation of PHA bioplastics in the marine environment: A meta-study.Marine Pollution Bulletin,142.
MLA	Dilkes-Hoffman L.S.,et al."The rate of biodegradation of PHA bioplastics in the marine environment: A meta-study".Marine Pollution Bulletin 142(2019).