Biodegradation of polystyrene and systems biology-based approaches to the development of new biocatalysts for plastic degradation

IF 3.4 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY
Ye-Bin Kim , Seongmin Kim , Chungoo Park , Soo-Jin Yeom
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引用次数: 0

Abstract

Plastic waste has become one of the most pressing environmental issues with rapidly increased their production that also has a severe impact on individual species and ecosystem functioning.

With recycling technologies in place, the waste plastic will become a valuable resource and hence less material will be lost to the environment. In the pursuit of a sustainable approach to the treatment of plastic waste, biological processes have emerged as an eco-friendly method with significant potential. In this review, we summarize previous research on the biodegradation of polystyrene (PS) as major plastics, including a review of the analytical methods used to investigate the plastic biodegradation, the isolation of PS-degrading microbes from various environment, and the identification of potential enzymes for PS biodegradation. Based on this, we propose a potential PS biodegradation pathway, even though the specific biochemical mechanisms associated with certain enzymes have not yet been fully identified. Finally, we discuss how PS-biodegrading enzymes can be identified using a systems biology-based screening approach that combines culture-based genomic and culture-independent metagenomic methods. This strategy can be applied to searching biodegrading enzymes for other plastics.

聚苯乙烯的生物降解和基于系统生物学的塑料降解新生物催化剂开发方法
随着塑料产量的迅速增加,塑料废物已成为最紧迫的环境问题之一,同时也对物种个体和生态系统功能产生了严重影响。为了寻求一种可持续的方法来处理塑料废物,生物工艺已成为一种具有巨大潜力的生态友好型方法。在这篇综述中,我们总结了以往关于聚苯乙烯(PS)作为主要塑料的生物降解的研究,包括用于研究塑料生物降解的分析方法、从各种环境中分离聚苯乙烯降解微生物以及鉴定潜在的聚苯乙烯生物降解酶。在此基础上,我们提出了潜在的 PS 生物降解途径,尽管与某些酶相关的具体生化机制尚未完全确定。最后,我们讨论了如何利用基于系统生物学的筛选方法来鉴定 PS 生物降解酶,该方法结合了基于培养的基因组学和不依赖培养的元基因组学方法。这种策略可用于寻找其他塑料的生物降解酶。
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来源期刊
Current Opinion in Systems Biology
Current Opinion in Systems Biology Mathematics-Applied Mathematics
CiteScore
7.10
自引率
2.70%
发文量
20
期刊介绍: Current Opinion in Systems Biology is a new systematic review journal that aims to provide specialists with a unique and educational platform to keep up-to-date with the expanding volume of information published in the field of Systems Biology. It publishes polished, concise and timely systematic reviews and opinion articles. In addition to describing recent trends, the authors are encouraged to give their subjective opinion on the topics discussed. As this is such a broad discipline, we have determined themed sections each of which is reviewed once a year. The following areas will be covered by Current Opinion in Systems Biology: -Genomics and Epigenomics -Gene Regulation -Metabolic Networks -Cancer and Systemic Diseases -Mathematical Modelling -Big Data Acquisition and Analysis -Systems Pharmacology and Physiology -Synthetic Biology -Stem Cells, Development, and Differentiation -Systems Biology of Mold Organisms -Systems Immunology and Host-Pathogen Interaction -Systems Ecology and Evolution
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