Answer on Other Biology Question for Huda
The beta-carotene is nonpolar, while chlorophylls contain polar C-O and C-N bonds and magnesium ion chelated to the nitrogen atoms. This structures make chlorophylls polar molecules. That is why these pigments will separate on the low and medium polar solvents like hexane and chloroform. Beta-carotene as nonpolar will be extracted with the nonpolar solvents (benzene, xylene).
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