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Amyloglucosidase Catalyzed Syntheses of Bakuchiol Glycosides in Supercritical Carbon Dioxide.

Manohar, B. and Divakar, S. and Udaya Sankar, K. (2009) Amyloglucosidase Catalyzed Syntheses of Bakuchiol Glycosides in Supercritical Carbon Dioxide. Bulletin of the Korean Chemical Society, 30 (8). pp. 1760-1766.

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Abstract

Enzymatic syntheses of water soluble Bakuchiol glycosides were carried out in di-isopropyl ether organic media using amyloglucosidase from Rhizopus mold. The reactions were carried out under conventional reflux conditions and in supercritical CO2 atmospheric conditions. Out of the eleven carbohydrate molecules employed for the reaction, D-glucose, D-ribose and D-arabinose gave glycosides in yields of 9.0% to 51.4% under conventional reflux conditions. Under supercritical CO2 atmosphere (100 bar pressure at 50 oC), bakuchiol formed glycosides with Dglucose, D-galactose, D-mannose, D-fructose, D-ribose, D-arabinose, D-sorbitol and D-mannitol in yields ranging from 9% to 46.6%. Out of the bakuchiol glycosides prepared, 6-O-(6-D-fructofruranosyl)bakuchiol showed the best antioxidant (1.4 mM) and ACE inhibitory activities (0.64 mM).

Item Type: Article
Uncontrolled Keywords: ACE inhibition, Antioxidant activity, Bakuchiol, Bakuchiol glycosides, Glycosylation
Subjects: 600 Technology > 08 Food technology > 32 Antioxidants
500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 16 Enzyme Chemistry
Divisions: Fermentation Technology and Bioengineering
Food Engineering
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 09 Aug 2011 07:26
Last Modified: 30 May 2012 11:48
URI: http://ir.cftri.com/id/eprint/10439

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