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Lutein and zeaxanthin are be com ing established as carotenoids beneficial for protection against common age-associated eye diseases. Thus, 15 potato (Solanum tuberosum subsp. tuberosum L.) breeding lines, cultivars Atlantic, Spunta, and Yukon Gold; and orange flesh OR-4 were surveyed for carotenoid profiles. Seven car o tenoids, including violaxanthin, neoaxanthin, antheraxanthin, lutein, zeaxanthin, `-cryptoaxanthin, and `-carotene, were identified in the 19 genotypes. Violaxanthin and lutein were the prominent carotenoids detected in all genotypes studied. Neoaxanthin and antheraxanthin were found in 26% and 63% of the genotypes, respectively. `-Cryptoaxanthin, zeaxanthin, and `-carotene were found in only 5%, 10%, and 16% of the genotypes, re spec tive ly. Lutein varied from 19.8 to 119.0 µg·100 g-1 fresh weight across the 15 white- or yellow-flesh breeding lines. In contrast, zeaxanthin was detected at a low level in only one breeding line and at high level in OR-4. The three cultivars had profiles typical of yellow-flesh potatoes 'Spunta∑ and 'Yukon Gold∑ ; while 'Atlantic∑ had a typical white-flesh profile and a trace of ze ax an thin. The carotenoid baseline data es tab lished in this study provide information for activities to enhance potato for lutein and zeaxanthin.

Carotenoid Profiles of Potato Breeding Lines and Selected Cultivars