Natural tomato lycopene is a mixture of isomers, primarily (all-E), but also some (5-Z) and two lesser and unidentified cis isomers, all of which are difficult to resolve by LC. Lycopene is an open chain unsaturated carotenoid that gives tomatoes, guava, rose hip, watermelon and pink grapefruit its…

Limonin is a natural compound found in grapefruit and other citrus seeds. Limonin is a triterpenoid aglycone that is a bitter principle of citrus fruits. It has been shown to inhibit chemically induced carcinogenesis and demonstrates anti feedant properties. Limonin may be used in assays to…