Biological conversion of methane to polyhydroxyalkanoates: Current advances, challenges, and perspectives
Lu-Yao Liu
Guo-Jun Xie
De-Feng Xing
Bing-Feng Liu
Jie Ding
Nan-Qi Ren
1.State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China2.State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China3.State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China4.State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China5.State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China6.State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
摘要：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.
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论文发表日期：2020-04-28
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：8( 31-38 )
英文信息