White sapote, Casimiroa edulis, also known as cochitzapotl in the Nahuatl language (meaning '"sleep-sapote") is a species of tropical fruiting tree in the family Rutaceae, native to eastern Mexico and Central America south to Costa Rica.
Mature Casimiroa edulis trees range from 5–16 metres tall and are evergreen. The leaves are alternate, palmately compound with 3–5 leaflets, the leaflets 6–13 cm long and 2.5–5 cm broad with an entire margin, and the leaf petiole 10–15 cm long.
The fruit is an ovoid drupe, 5–10 cm in diameter, with a thin, inedible skin turning from green to yellow when ripe, and an edible pulp, which can range in flavor from bland to banana-like to peach to pear to vanilla flan. The pulp can be creamy-white in green skin varieties or a beige-yellow in yellow skin varieties and has a smooth texture similar to ripe avocado. It contains from one to five seeds that are said to have narcotic properties.
Casimiroa and its Nutrition: fruits of the casimiroa edulis species are rich in vitamins C and A. They have a high sugar content, about 27%. However, they are low in calories.
Casimiroa edulis belongs to the Rutaceae family of plants, commonly known as citrus. As such it contains Limonoids. Limonoids are phytochemicals, found mostly in citrus peel. Research suggest that Limonoids are antifungal, antiviral, antineoplastic, antibacterial and antimalarial. Eating foods rich in Limonoids provides antioxidant activity which trigger detoxification enzymes in the liver. Casimiroa also contains the phytochemical known as Zapotin. Studies show that Zapotin has powerful anticancerous activity and in particular helps prevent colon cancer.
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