Factors affecting polyhydroxyalkanoates biodegradation in soil

被引：58

作者：

Fernandes, Miguel ^{[1
]}

Salvador, Andreia ^{[1
]}

Alves, Madalena M. ^{[1
]}

Vicente, Antonio A. ^{[1
]}

机构：

[1] Univ Minho, Ctr Biol Engn, Campus Gualtar, P-4710057 Braga, Portugal

来源：

POLYMER DEGRADATION AND STABILITY | 2020年 / 182卷 / 182期

关键词：

Soil biodegradation; Polyhydroxyalkanoates; Biodegradable plastics; PHA degraders; PHB/V-DEGRADING MICROORGANISMS; MICROBIAL-DEGRADATION; ENVIRONMENTAL DEGRADATION; FIBER COMPOSITES; BACTERIAL; PHA; POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE); POLY(3-HYDROXYBUTYRATE); POLYHYDROXYBUTYRATE; BEHAVIOR;

D O I：

10.1016/j.polymdegradstab.2020.109408

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polyhydroxyalkanoates (PHAs) are polymers with widespread applications, from medical devices to packaging. PHAs can be biodegradable in natural environments, such as soil, but the blend of PHA with other materials can change the polymer properties and consequently affect the biodegradation process. The composition of the microbial communities in soil also significantly affects the biodegradation, but other factors such as temperature, pH, and soil moisture, can also be determinant. These ecological and physic/chemical factors change in different seasons and in different soil layers. It is essential to know how these factors influence the PHAs' biodegradation to understand the impact of PHAs in nature. This review compiles the results on PHA polymers and PHA blends biodegradation, with focus on laboratory tests. The main factors affecting PHA's biodegradation in soil, both in laboratory tests and in the environment are also discussed. (C) 2020 Elsevier Ltd. All rights reserved.

引用

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