TY - JOUR
T1 - Methane mitigation technology using methanotrophs
T2 - A review
AU - Cho, Kyung Suk
AU - Jung, Hyekyeng
N1 - Publisher Copyright:
© 2017, The Korean Society for Microbiology and Biotechnology.
PY - 2017/9
Y1 - 2017/9
N2 - Methane, which is emitted from natural and anthropogenic sources, is a representative greenhouse gas for global warming. Methanotrophs are widespread in the environment and play an important role in the biological oxidation of methane via methane monooxygenases (MMOs), key enzymes for methane oxidation with broad substrate specificity. Methanotrophs have attracted attention as multifunctional bacteria with promising applications in biological methane mitigation technology and environmental bioremediation. In this review, we have summarized current knowledge regarding the biodiversity of methanotrophs, catalytic properties of MMOs, and high-cell density cultivation technology. In addition, we have reviewed the recent advances in biological methane mitigation technologies using methanotrophs in field-scale systems as well as in lab-scale bioreactors. We have also surveyed information on the dynamics of the methanotrophic community in biological systems and discussed the various challenges pertaining to methanotroph-related biotechnological innovation, such as identification of suitable methanotrophic strains with better and/or novel metabolic activity, development of high-cell density mass cultivation technology, and the microbial consortium (methanotrophs and non-methanotrophs consortium) design and control technology.
AB - Methane, which is emitted from natural and anthropogenic sources, is a representative greenhouse gas for global warming. Methanotrophs are widespread in the environment and play an important role in the biological oxidation of methane via methane monooxygenases (MMOs), key enzymes for methane oxidation with broad substrate specificity. Methanotrophs have attracted attention as multifunctional bacteria with promising applications in biological methane mitigation technology and environmental bioremediation. In this review, we have summarized current knowledge regarding the biodiversity of methanotrophs, catalytic properties of MMOs, and high-cell density cultivation technology. In addition, we have reviewed the recent advances in biological methane mitigation technologies using methanotrophs in field-scale systems as well as in lab-scale bioreactors. We have also surveyed information on the dynamics of the methanotrophic community in biological systems and discussed the various challenges pertaining to methanotroph-related biotechnological innovation, such as identification of suitable methanotrophic strains with better and/or novel metabolic activity, development of high-cell density mass cultivation technology, and the microbial consortium (methanotrophs and non-methanotrophs consortium) design and control technology.
KW - Biotechnology
KW - High-cell density culture
KW - Methane
KW - Methanotrophs
KW - Microbial community structure
UR - http://www.scopus.com/inward/record.url?scp=85030641831&partnerID=8YFLogxK
U2 - 10.4014/mbl.1707.07005
DO - 10.4014/mbl.1707.07005
M3 - Review article
AN - SCOPUS:85030641831
SN - 1598-642X
VL - 45
SP - 185
EP - 199
JO - Korean Journal of Microbiology and Biotechnology
JF - Korean Journal of Microbiology and Biotechnology
IS - 3
ER -