Wang Zhiyuan; Luo Wen; Fu Junying; Li Zhibing; Wang Zhongming; Lu Pengmei
Source Publicationchemicalresearchinchineseuniversities
AbstractKojic dipalmitate(KDP) was synthesized by the way of esterification of palmitic and kojic acids in organic solvent, with double-lipase as the biocatalyst. Four commercially available lipases(Amano PS, Novozym 435, Lipozyme TL IM and Lipozyme RM IM) were used to group six double-lipase combinations. These combinations were studied and Amano PS-Novozym 435 was found to have the best efficiency and was selected for optimizing the reaction conditions. The optimal reaction conditions were as follows. The mass ratio of Amano PS to Novozyme 435 was 1:1.5, with stirring speed of 500 r/min, substrates molar ratio of 1:2, 50 0C, 5%(mass fraction) catalyst dosage of kojic acid quantity and using acetone as co-solvent. Under these conditions, the diesterification of C5 and C7 hy-droxyl groups of kojic acid molecule could be well catalyzed by double-lipase and realize a high KDP yield of 85%.
Document Type期刊论文
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang Zhiyuan,Luo Wen,Fu Junying,et al. doubleiipasecatalyzedsynthesisofkojicdipalmitateinorganicsolvents[J]. chemicalresearchinchineseuniversities,2017,33(6):903.
APA Wang Zhiyuan,Luo Wen,Fu Junying,Li Zhibing,Wang Zhongming,&Lu Pengmei.(2017).doubleiipasecatalyzedsynthesisofkojicdipalmitateinorganicsolvents.chemicalresearchinchineseuniversities,33(6),903.
MLA Wang Zhiyuan,et al."doubleiipasecatalyzedsynthesisofkojicdipalmitateinorganicsolvents".chemicalresearchinchineseuniversities 33.6(2017):903.
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