Native carotenoids composition of some tropical fruits

Many tropical fruits can be considered a reservoir of bioactive substances with a special interest due to their possible health-promoting properties. The interest in carotenoids from a nutritional standpoint has recently greatly increased, because of their important health benefits. Here we report the native carotenoids composition in six tropical fruits from Panama, which is considered a region of great biodiversity. The native carotenoid composition was directly investigated by an HPLC-DAD-APCI-MS methodology, for the first time. In Corozo 32 different carotenoids were detected, including a high content of beta-carotene and lycopene. Sastra showed the highest content of zeaxanthin among the fruit investigated. In Sapote 22 different carotenoids were detected, including beta-carotene and 10 different zeaxanthin-di-esters. Frutita showed a very high content of the apo-carotenoid beta-citraurin, and of a number of its esters. In Maracuya chino 14 carotenoids were detected, including a high amounts of mono-esterified lauric acid with beta-cryptoxanthin and with cryptocapsin. Mamey rojo was characterised by ketocarotenoids with kappa rings, both hydroxylated and not hydroxylated. (C) 2012 Elsevier Ltd. All rights reserved.