Genotypic diversity of turmeric (Curcuma longa L.) accessions in mindanao, philippines on the basis of curcumin content

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Research Paper 01/10/2014
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Genotypic diversity of turmeric (Curcuma longa L.) accessions in mindanao, philippines on the basis of curcumin content

Elvira A. Corcolon, Maribel L. Dionisio-Sese
J. Bio. Env. Sci.5( 4), 593-600, October 2014.
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Twenty-one turmeric accessions collected from seven provinces in Mindanao were grown in a uniform environment and analyzed for curcumin content. Rhizome bits of each accession were planted in big plastic bags and randomly laid out in the field. Rhizome samples harvested from each accession were analyzed for curcumin content using High Performance Liquid Chromatography (HPLC) on a Novapak C18 column with the solvent system consisting of methanol:acetonitrile (80:20) and detection at 370 nm. Highly significant differences in curcumin content were observed among the turmeric accessions, varying from as low as 1.2 mg/g for Accession 3 to as high as 102.4 mg/g for Accession 20. These results reveal the existence of genetic variation in the turmeric accessions collected from the different provinces in Mindanao with high curcumin yielding accessions identified which could be recommended for cultivation.


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