Abstract：
:In this study, chitosan modified with glutaraldehyde (GLA), 3-aminopropyltriethoxysilane (APTES), polyethyleneimine, and APTES followed by GLA (APTES-GLA) as a support material was used to improve methanol production from biogas. Among these support materials, chitosan-APTES-GLA showed the highest increase in immobilization yield and relative efficiency of Methylomicrobium album up to 56.4% and 97.7%, respectively. Maximum cell loading of 236 mg dry cell mass per g-support was observed for M. album., which is 7.7-fold higher than that of chitosan. The immobilized M. album maintained a 23.9-fold higher methanol production compared to free cells after 8 cycles of reuse; it also produced 6.92 mmol·L-1 methanol from biogas that originated from anaerobic digestion of rice straw, thereby validating its industrial application. This is the first report on the immobilization of methanotrophs on chemically modified chitosans to improve cell loading and relative efficiency, and its potential applications in the conversion of greenhouse gases to methanol.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Patel SKS,Gupta RK,Kondaveeti S,Otari SV,Kumar A,Kalia VC,Lee JKdoi
10.1016/j.biortech.2020.123791subject
Has Abstractpub_date
2020-11-01 00:00:00pages
123791eissn
0960-8524issn
1873-2976pii
S0960-8524(20)31063-4journal_volume
315pub_type
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更新日期：2010-06-01 00:00:00
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