Turmeric rhizome powders look quite yellow in market. The produce is actually cooked, dried, polished and powdered one. I am looking at uncooked dried rhizome powders of different genotypes. I have tried a few genotypes and found different ones are giving different colours from pale yellow to orange. I want to look at curcumin content also. Is there any relationship to colour of this powder and actual curcumin content. Any experienced hands in this one, please help me. Further, please advice me the best strategies to link such relation.
curcumin, a bioflavonoid with yellow color, is a main pigment of turmeric which is obtained from the rhizome of curcuma longa. so the color of the rhizome maybe an indicator of the presence of the curcumin and it maybe correct to say that the more curcumin present in the rhizome the more yellow color would be seen.
Yes, I agree with you. But, I am looking for some work which points out to this or gives some clues to this approach. Thank you for your response.
your welcome, so the article with the title of ''Isolation and Extraction of Curcumin from Three Different Varieties of Curcuma Longa L - A Comparative Study'' may help you.