Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/63354
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dc.contributor.authorChen, Hsiao-Chingen_US
dc.contributor.authorKuo, Chia-Hungen_US
dc.contributor.authorTsai, Wei-Chuanen_US
dc.contributor.authorChung, Yi-Linen_US
dc.contributor.authorChiang, Wen-Deeen_US
dc.contributor.authorChieh-Ming, J.Changen_US
dc.contributor.authorLiu, Yung-Chuanen_US
dc.contributor.authorShieh, Chwen-Jenen_US
dc.date2012-02zh_TW
dc.date.accessioned2014-06-09T07:05:07Z-
dc.date.available2014-06-09T07:05:07Z-
dc.identifier.urihttp://hdl.handle.net/11455/63354-
dc.description.abstractPropylene glycol mono- (PGM) and diesters (PGD) are widely used as emulsifiers in food and pharmaceutical industry. Solvent engineering was applied to determine the optimum solvent mixtures for the lipasecatalyzed synthesis of 1,3-PGM and 1,3-PGD. After 24 h reaction, the results showed that the molar production of 1,3-PGM was 75% under pure 2M2B (2-methyl-2-butanol) system, whereas 1,3-PGD was preferred to produce in binary mixture system (n-hexane: octane 1:1) with 55% of molar production. Furthermore, the reaction parameters that affect esterification of 1,3-PGD using oleic acid as acyl donor in optimum cosolvent environment were evaluated by response surface methodology (RSM). The reaction temperature and reaction time were the most important parameters. Based on a ridge max analysis, the optimum conditions for 1,3-PGD synthesis were predicted to consist of a reaction time of 40.6 min, a temperature of 59 C, an enzyme amount of 70.4%, a substrate molar ratio (1,3-propylene glycol/oleic acid) of 1:2.7 and an enzyme pretreatment pH of 6.4 on percentage of molar production of 1,3-PGD of 43.3 � 4.2%.en_US
dc.language.isoen_USzh_TW
dc.relationJ Am Oil Chem Soc, Volume 89, Page(s) 231–241.en_US
dc.relation.urihttp://dx.doi.org/10.1007/s11746-011-1914-9en_US
dc.subjectEsteren_US
dc.subjectLipaseen_US
dc.subjectMixture designen_US
dc.subjectOptimizationen_US
dc.subjectPropylene glycolen_US
dc.subjectRSMen_US
dc.titleProduct Selectivity and Optimization of Lipase-Catalyzed 1,3-Propylene Glycol Esters by Mixture Design and RSMen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1007/s11746-011-1914-9zh_TW
dc.contributor.catalogerWei Chun Wangen_US
item.grantfulltextnone-
item.fulltextno fulltext-
item.cerifentitytypePublications-
item.languageiso639-1en_US-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeJournal Article-
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