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Kinetic Studies on the Hydrogenation of Curcuminoids Isolated from Curcuma Longa by LC/MS

Author Affiliations

  • 1R and D Centre, Aurea Biolabs (P) Ltd, Cochin, INDIA

Res.J.chem.sci., Volume 5, Issue (4), Pages 33-36, April,18 (2015)


In the present study, we investigated the catalytic palladium hydrogenation of curcuminoids, the major constituent isolated from Turmeric root (Curcuma longa) at various time intervals and monitored by LC/MS. The study revealed that the most of the curcuminoids hydrogenated within two hours period and gave the corresponding tetra, hexa and octa-hydrocurcuminoids at different ratio except bisdemethoxycurcumin, which gave only hexa-hydrogenated derivative. Even though, Palladium-carbon catalyst does not favour the reduction of carbonyl group, due to the presence of the conjugated double bonds hydrogenation occurred.


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