Detection of admixtures of turmeric, Curcuma longa Linn., with Curcuma aromatica Salisb. by thin layer and gas-liquid chromatography.

Raghuveer, K. G. and Govindarajan, V. S. (1979) Detection of admixtures of turmeric, Curcuma longa Linn., with Curcuma aromatica Salisb. by thin layer and gas-liquid chromatography. Journal of the Association of Official Analytical Chemists, 62 (6). 1333-1337, 9 ref..

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Abstract

Simple and definitive TLC methods are described for detection of admixtures of Curcuma longa with Curcuma aromatica at the 5% levels. The tests are performed on hexane extracts, thus avoiding distillation of the volatile oil, and are based on the separation of high boiling sesquiterpene compounds by hexane or benzene. Chromatograms are sprayed with vanillin-sulphuric acid or Gibbs reagent to give distinct spots for C. aromatica which are absent from C. longa. Gas chromatography of the extracts also distinguishes the admixtures through a late-eluting peak for C. aromatica.

Item Type:	Article
Uncontrolled Keywords:	SPICES-; turmeric, Curcuma aromatic admixtures detn. in; ADULTERATION-
Subjects:	500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 06 Chromatography 600 Technology > 08 Food technology > 30 Spices/Condiments
Divisions:	Plantation Products Spices and Flavour Technology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	29 Oct 2021 06:48
Last Modified:	29 Oct 2021 06:48
URI:	http://ir.cftri.res.in/id/eprint/3715

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