Nutrient And Antioxidant Properties Of Mangoes
Mangoes belong to the genus Mangifera, consisting of numerous species of tropical fruiting trees in the flowering plant family Anacardiaceae. The mango is indigenous to India. Cultivated in many tropical and subtropical regions and distributed widely in the world, mango is one of the most extensively exploited fruits for food, juice, flavor, fragrance and color.
Mango is rich in a variety of phytochemicals and nutrients. The fruit pulp is high in prebiotic dietary fiber, vitamin C, polyphenols and provitamin A carotenoids.
Mango contains essential vitamins and dietary minerals. The antioxidant vitamins A, C and E comprise 25%, 76% and 9% of the Dietary Reference Intake (DRI) in a 165 g serving. Vitamin B6 (pyridoxine, 11% DRI), vitamin K (9% DRI), other B vitamins and essential nutrients such as potassium, copper and 17 amino acids are at good levels. Mango peel and pulp contain other phytonutrients, such as the pigment antioxidants – carotenoids and polyphenols – and omega-3 and -6 polyunsaturated fatty acids.
Mango peel contains pigments that may have antioxidant properties, including carotenoids, such as the provitamin A compound, beta-carotene, lutein and alpha-carotene, polyphenols such as quercetin, kaempferol, gallic acid, caffeic acid, catechins, tannins, and the unique mango xanthone, mangiferin, any of which may counteract free radicals in various disease mechanisms as revealed in preliminary research. Contents of these phytochemicals and nutrients appear to vary across different mango species. Up to 25 different carotenoids have been isolated from mango pulp, the densest content for which was beta-carotene accounting for the yellow-orange pigmentation of most mango species. Peel and leaves also have significant content of polyphenols, including xanthones, mangiferin and gallic acid.
The mango triterpene, lupeol is an effective inhibitor in laboratory models of prostate and skin cancers. An extract of mango branch bark called Vimang, isolated by Cuban scientists, contains numerous polyphenols with antioxidant properties in vitro and on blood parameters of elderly humans.
The pigment euxanthin, known as Indian yellow, is often thought to be produced from the urine of cows fed mango leaves; the practice is described as having been outlawed in 1908 due to malnutrition of the cows and possible urushiol poisoning. One author claims these descriptions of the pigment’s origin rely on a single anecdotal source and Indian legal records do not mention such a practice being outlawed.