Polyhydroxyalkanoate Production by Methanotrophs: Recent Updates and Perspectives

被引:2
|
作者
Patel, Sanjay K. S. [1 ,2 ]
Singh, Deepshikha [2 ]
Pant, Diksha [2 ]
Gupta, Rahul K. [1 ]
Busi, Siddhardha [3 ]
Singh, Rahul V. [1 ]
Lee, Jung-Kul [1 ]
机构
[1] Konkuk Univ, Dept Chem Engn, 120 Neungdong Ro, Seoul 05029, South Korea
[2] Hemvati Nandan Bahuguna Garhwal Univ Cent Univ, Dept Biotechnol, Srinagar 246174, Uttarakhand, India
[3] Pondicherry Univ, Dept Bioinformat, Kalapet 605014, India
基金
新加坡国家研究基金会;
关键词
polyhydroxyalkanoates; methanotrophs; greenhouse gases; methane; biotransformation; environmental pollution; METHYLOSINUS-TRICHOSPORIUM OB3B; POLY-BETA-HYDROXYBUTYRATE; HIGH-MOLECULAR-WEIGHT; PHB PRODUCTION; METHYLOCYSTIS-HIRSUTA; MIXED CULTURE; METHANE; POLY-3-HYDROXYBUTYRATE; GAS; ACCUMULATION;
D O I
10.3390/polym16182570
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Methanotrophs are bacteria that consume methane (CH4) as their sole carbon and energy source. These microorganisms play a crucial role in the carbon cycle by metabolizing CH4 (the greenhouse gas), into cellular biomass and carbon dioxide (CO2). Polyhydroxyalkanoates (PHAs) are biopolymers produced by various microorganisms, including methanotrophs. PHA production using methanotrophs is a promising strategy to address growing concerns regarding plastic pollution and the need for sustainable, biodegradable materials. Various factors, including nutrient availability, environmental conditions, and metabolic engineering strategies, influence methanotrophic production. Nutrient limitations, particularly those of nitrogen or phosphorus, enhance PHA production by methanotrophs. Metabolic engineering approaches, such as the overexpression of key enzymes involved in PHA biosynthesis or the disruption of competing pathways, can also enhance PHA yields by methanotrophs. Overall, PHA production by methanotrophs represents a sustainable and versatile approach for developing biomedical materials with numerous potential applications. Additionally, alternative feedstocks, such as industrial waste streams or byproducts can be explored to improve the economic feasibility of PHA production. This review briefly describes the potential of methanotrophs to produce PHAs, with recent updates and perspectives.
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页数:16
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