
doi: 10.1021/jf020109l
pmid: 12358439
An HPLC method was developed using the C-30 carotenoid column to separate and identify the major xanthophylls in corn (lutein, zeaxanthin, and beta-cryptoxanthin). A photodiode array detector and a mobile phase consisting of methyl tert-butyl ether/methanol/water was used. All three xanthophylls eluted in less than 25 min. Yellow dent corn had a total xanthophyll content of 21.97 microg/g with lutein content of 15.7 microg/g, zeaxanthin content of 5.7 microg/g, and beta-cryptoxanthin of 0.57 microg/g. Commercial corn gluten meal had a 7 times higher concentration of xanthophylls (145 microg/g), and deoiled corn contained 18 microg/g, indicating that the xanthophylls are probably bound to the zein fraction of corn proteins.
Zeaxanthins, Lutein, Inbreeding, Corn Oil, Xanthophylls, beta Carotene, Zea mays, Chromatography, High Pressure Liquid, Cryptoxanthins
Zeaxanthins, Lutein, Inbreeding, Corn Oil, Xanthophylls, beta Carotene, Zea mays, Chromatography, High Pressure Liquid, Cryptoxanthins
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