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Lipase-Catalyzed Synthesis of Sugar Esters in Honey and Agave Syrup

Siebenhaller, Sascha; Gentes, Julian; Infantes, Alba; Muhle-Goll, Claudia; Kirschhöfer, Frank; Brenner-Weiß, Gerald; Ochsenreither, Katrin; Syldatk, Christoph

Abstract:
Honey and agave syrup are high quality natural products and consist of more than 80% sugars. They are used as sweeteners, and are ingredients of cosmetics or medical ointments. Furthermore, both have low water content, are often liquid at room temperature and resemble some known sugar-based deep eutectic solvents (DES). Since it has been shown that it is possible to synthesize sugar esters in these DESs, in the current work honey or, as vegan alternative, agave syrup are used simultaneously as solvent and substrate for the enzymatic sugar ester production. For this purpose, important characteristics of the herein used honey and agave syrup were determined and compared with other available types. Subsequently, an enzymatic transesterification of four fatty acid vinyl esters was accomplished in ordinary honey and agave syrup. Notwithstanding of the high water content for transesterification reactions of the solvent, the successful sugar ester formation was proved by thin-layer chromatography (TLC) and compared to a sugar ester which was synthesized in a conventional DES. For a clear verification of the sugar esters, mass determinations by ESI-Q-ToF experiments and a NMR analysis were done. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000080530
Veröffentlicht am 28.02.2018
Originalveröffentlichung
DOI: 10.3389/fchem.2018.00024
Web of Science
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Bio- und Lebensmitteltechnik (BLT)
Institut für Organische Chemie (IOC)
Institut für Funktionelle Grenzflächen (IFG)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 12.02.2018
Sprache Englisch
Identifikator ISSN: 2296-2646
urn:nbn:de:swb:90-805302
KITopen-ID: 1000080530
HGF-Programm 47.02.06 (POF III, LK 01)
Zellpopul.auf Biofunk.Oberflächen IFG
Erschienen in Frontiers in Chemistry
Band 6
Seiten Article: 24
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagwörter sugar ester; glycolipid synthesis; honey, agave syrup; lipase, transesterification; deep eutectic solvent
Nachgewiesen in Web of Science
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