Highly Efficient Enzyme Immobilization and Stabilization within Meso-Structured Onion-Like Silica for Biodiesel Production

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dc.contributor.authorJun, Seung-Hyunko
dc.contributor.authorLee, Jinwooko
dc.contributor.authorKim, Byoung Chanko
dc.contributor.authorLee, Ji Eunko
dc.contributor.authorJoo, Jinko
dc.contributor.authorPark, Hyunminko
dc.contributor.authorLee, Jong Hoko
dc.contributor.authorLee, Sang-Mokko
dc.contributor.authorLee, Dohoonko
dc.contributor.authorKim, Sangyongko
dc.contributor.authorKoo, Yoon-Moko
dc.contributor.authorShin, Chae Hoko
dc.contributor.authorKim, Seung Wookko
dc.contributor.authorHyeon, Taeghwanko
dc.contributor.authorKim, Jungbaeko
dc.date.accessioned2018-08-20T08:24:34Z-
dc.date.available2018-08-20T08:24:34Z-
dc.date.created2018-08-08-
dc.date.created2018-08-08-
dc.date.issued2012-03-
dc.identifier.citationCHEMISTRY OF MATERIALS, v.24, no.5, pp.924 - 929-
dc.identifier.issn0897-4756-
dc.identifier.urihttp://hdl.handle.net/10203/245086-
dc.description.abstractMeso-structured onion-like silica (Meso-Onion-S) was synthesized and used as a host of enzyme immobilization. Meso-Onion-S has a 200-300 nm sized primary meso-structured onion building unit, and each onion unit has highly curved mesopores of 10 nm diameter in a multishell structure. Nanoscale enzyme reactors (NERs) in Meso-Onion-S were prepared via a two-step process of enzyme adsorption and subsequent enzyme cross-linking, which effectively prevents the leaching of cross-linked enzyme aggregates from highly curved mesopores of Meso-Onion-S. As a result, NERs in Meso-Onion-S significantly improved the enzyme stability as well as the enzyme loading. For example, NER of lipase (NER-LP) was stable under rigorous shaking for 40 days, while the control sample of adsorbed LP (ADS-LP) with no enzyme cross-linking showed a rapid inactivation due to rigorous enzyme leaching under shaking. Stable NER-LP was successfully employed to produce biodiesels and fatty acid methyl esters, from the LP-catalyzed transesterification of soybean oil with methanol. Interestingly, the specific activity of NER-LP was 23 and 10 times higher than those of free LP and ADS-LP, respectively, revealing the importance of LP stabilization in the form of NER-LP in the presence of organic solvents.-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.subjectMESOPOROUS SILICA-
dc.subjectCATALYTIC ACTIVITY-
dc.subjectMOLECULAR-SIEVE-
dc.subjectLIPASE-
dc.subjectACID-
dc.subjectENCAPSULATION-
dc.subjectMORPHOLOGIES-
dc.subjectCOPOLYMER-
dc.subjectVESICLES-
dc.subjectTRIBLOCK-
dc.titleHighly Efficient Enzyme Immobilization and Stabilization within Meso-Structured Onion-Like Silica for Biodiesel Production-
dc.typeArticle-
dc.identifier.wosid000301398100018-
dc.identifier.scopusid2-s2.0-84863285737-
dc.type.rimsART-
dc.citation.volume24-
dc.citation.issue5-
dc.citation.beginningpage924-
dc.citation.endingpage929-
dc.citation.publicationnameCHEMISTRY OF MATERIALS-
dc.identifier.doi10.1021/cm202125q-
dc.contributor.localauthorLee, Jinwoo-
dc.contributor.nonIdAuthorJun, Seung-Hyun-
dc.contributor.nonIdAuthorKim, Byoung Chan-
dc.contributor.nonIdAuthorLee, Ji Eun-
dc.contributor.nonIdAuthorJoo, Jin-
dc.contributor.nonIdAuthorPark, Hyunmin-
dc.contributor.nonIdAuthorLee, Jong Ho-
dc.contributor.nonIdAuthorLee, Sang-Mok-
dc.contributor.nonIdAuthorLee, Dohoon-
dc.contributor.nonIdAuthorKim, Sangyong-
dc.contributor.nonIdAuthorKoo, Yoon-Mo-
dc.contributor.nonIdAuthorShin, Chae Ho-
dc.contributor.nonIdAuthorKim, Seung Wook-
dc.contributor.nonIdAuthorHyeon, Taeghwan-
dc.contributor.nonIdAuthorKim, Jungbae-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthormeso-structured onion-like silica-
dc.subject.keywordAuthorenzyme immobilization-
dc.subject.keywordAuthorenzyme stabilization-
dc.subject.keywordAuthorbiodiesel production-
dc.subject.keywordPlusMESOPOROUS SILICA-
dc.subject.keywordPlusCATALYTIC ACTIVITY-
dc.subject.keywordPlusMOLECULAR-SIEVE-
dc.subject.keywordPlusLIPASE-
dc.subject.keywordPlusACID-
dc.subject.keywordPlusENCAPSULATION-
dc.subject.keywordPlusMORPHOLOGIES-
dc.subject.keywordPlusCOPOLYMER-
dc.subject.keywordPlusVESICLES-
dc.subject.keywordPlusTRIBLOCK-
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