首页|Biological conversion of methane to polyhydroxyalkanoates: Current advances, challenges, and perspectives

Biological conversion of methane to polyhydroxyalkanoates: Current advances, challenges, and perspectives

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Methane emissions and plastic pollution are critical global challenges.The biological conversion of methane to poly-β-hydroxybutyrate (PHB) not only mitigates methane emissions but also provides biodegradable polymer substitutes for petroleum-based materials used in plastics production.This work provides an early overview of the methane-based PHB advances and discusses challenges and related strategies.Recent advances of PHB,including PHB biosynthetic pathways,methanotrophs,bioreactors,and the performances of PHB materials are introduced.Major challenges of methane-based PHB production are discussed in detail;these include low efficiency of methanotrophs,low gas-liquid mass transfer efficiency,and poor material properties.To overcome these limitations,various approaches are also explored,such as feast-famine regimes,engineered microorganisms,gas-permeable membrane bioreactors,two-phase partitioning bioreactors,poly-β-hydroxybutyrate-co-hydroxyvalerate synthesis,and molecular weight manipulation.

PolyhydroxyalkanoateMethanotrophsMethaneBiodegradable plasticsGreenhouse gas

Lu-Yao Liu、Guo-Jun Xie、De-Feng Xing、Bing-Feng Liu、Jie Ding、Nan-Qi Ren

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State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China

authors would like to thank the Natural Science Foundation of Chinaauthors would like to thank the Natural Science Foundation of ChinaFundamental Research Funds for the Central UniversitiesFok Ying Tung Education Foundationand State Key Laboratory of Urban Water Resource and EnvironmentHarbin Institute of Technology

grant no 51778173518081672018DX05 for supporting this study

2020

环境科学与技术
湖北省环境科学研究院

环境科学与技术

CSTPCDCSCD北大核心
影响因子:0.943
ISSN:1003-6504
年,卷(期):2020.2(4)
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