American Journal of Applied Sciences

Identification and Quantification of Major Carotenoids in Some Vegetables

Jafar Muhammad EL-Qudah

DOI : 10.3844/ajassp.2009.492.497

American Journal of Applied Sciences

Volume 6, Issue 3

Pages 492-497


An HPLC study of 6 raw vegetables (Okra, green beans, eggplant zucchini, carrot and tomato) most frequently consumed worldwide was carried out to determine their carotenoid composition. The samples were purchased from supermarket in the city of Boston, USA. Neoxanthin, violaxanthin and lutein were contained in all samples except tomato for neoxanthin, carrot and tomato for violaxanthin and carrot for lutein. β-carotene was contained in all samples while α-carotene was contained only in carrot. Lycopene was contained in okra, green beans and tomato. Carrot had α-carotene and β-carotene as principal carotenoids and lutein as minor component. Relatively high ratios (9-cis to all-trans β-carotene) of above 0.2 g/g were noted in green beans, eggplant and okra.


© 2009 Jafar Muhammad EL-Qudah. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.