A New Dimeric Ionone from the Unripe Fruits of Capsicum annuum var. conoides
Red pepper, Capsicum annuum (Solanaceae), is used as a spice all over the world. Red pepper is studied actively because its pungent principal component, capsaicin, has a dietary effect, analgesic activity, and antioxidant activity . The pungent principal component of red peppers is a group of acid amides of vanillylamine and C8 to C13 fatty acids, which are known generally as capsaicin . More than 16 other capsaicinoids have been found as minor components . Numerous studies have been done on the red pepper fruit, but there are few studies on stems [2, 3, 4]. Previously, we isolated 19 compounds, including ten amides, four steroids, and six benzenoids from the stems of this plant . We also isolated 17 compounds, including three chlorophylls, six steroids, one ionone, and seven benzenoids from the unripe fruits of this plant . To further understand the chemotaxonomy and to continue searching for biologically and chemically novel agents from Solanaceous plants, the unripe...
This investigation was supported by a Grant from the Fooyin University.
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