Improving ascorbyl oleate synthesis catalyzed by Candida antarctica lipase B in ionic liquids and water activity control by salt hydrates |
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| Authors: | Marek Adamczak Uwe T. Bornscheuer |
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| Affiliation: | 1. Department of Food Biotechnology, University of Warmia and Mazury in Olsztyn, 10-718, Olsztyn, J. Heweliusz St. 1, Poland;2. Institute of Biochemistry, Department of Biotechnology & Enzyme Catalysis, Greifswald University, Felix-Hausdorff-St. 4, Greifswald, Germany |
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| Abstract: | Lipase catalyzed-synthesis of ascorbyl oleate was performed in ionic liquids with addition of salt hydrate pairs for water activity control. The highest yield in the synthesis of ascorbyl oleate (72%) was obtained in [BMIM][BF4] in the presence of the salt pair NaI 2/0, which corresponds to a water activity of 0.3. Purity and chemical identity of 6-O-ascorbyl oleate was confirmed by 1H and 13C NMR analysis. |
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