Biodegradable plastic agricultural mulches and key features of microbial degradation

被引：195

作者：

Brodhagen, Marion ^{[1
]}

Peyron, Mark ^{[2
]}

Miles, Carol ^{[3
]}

Inglis, Debra Ann ^{[3
]}

机构：

[1] Western Washington Univ, Dept Biol, Bellingham, WA 98225 USA

[2] Western Washington Univ, Dept Engn, Bellingham, WA 98225 USA

[3] Washington State Univ, Northwestern Washington Res & Extens Ctr, Mt Vernon, WA 98273 USA

来源：

APPLIED MICROBIOLOGY AND BIOTECHNOLOGY | 2015年 / 99卷 / 03期

基金：

美国农业部;

关键词：

Biodegradable plastic; Biodegradable polymers; Biodegradablemulch; Compostable plastic; Compostablemulch; Compostable polymers; Plastic-degrading fungi; CARBON-DIOXIDE FIXATION; CUTINASE-LIKE ENZYME; THERMOPLASTIC STARCH; POLY(L-LACTIDE)-DEGRADING ENZYME; OLIGOTROPHIC MICROORGANISMS; ENVIRONMENTAL DEGRADATION; POLYMER BIODEGRADATION; ASPERGILLUS-FLAVUS; DEGRADING ENZYME; POLYLACTIC ACID;

D O I：

10.1007/s00253-014-6267-5

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The development of biodegradable plastic mulch films for use in agriculture has been ongoing for decades. These films consist of mixtures of polymers with various additives. As a result, their physical and chemical properties differ from those of the pure polymers often used for in vitro enzymatic and microbial degradation studies, raising questions about the biodegradation capability of mulch films. Currently, standards exist for the biodegradation of plastics in composting conditions but not in soil. Biodegradation in soil or compost depends on a complex synergy of biological and abiotic degradative processes. This review discusses the physicochemical and structural properties of biodegradable plastic mulches, examines their potential for on-site decomposition in light of site-to-site variance due to environmental and biological conditions, and considers the potential for long-term effects on agroecosystem sustainability and functionality.

引用

页码：1039 / 1056

页数：18

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