
This sweet purple colored dark purple. Purple pigments in purple yam mermanfaat as an antioxidant because it can absorb air pollution, toxins, oxidation in the body, and inhibits the clotting cells darah.Ubi purple natural foods also contain high fiber, prebiotics, levels of low Glycemic Index, and oligosaccharides.
In addition, purple sweet potato also contains lysine, Cu, Mg, K, Zn average of 20%. He is also a source of carbohydrate and high calorie sources. Coupled with a good source of vitamins and minerals, vitamins contained in sweet potatoes, among others, vitamin A, vitamin C, thiamin (vitamin B1), and riboflavin. While the mineral in the sweet potato include iron (Fe), phosphorus (P), and calcium (Ca).
Other content is protein, fat, crude fiber and ash. Total anthocyanin content varied at each plant and ranged from 20 mg/100 g to 600 mg/100 g wet weight. Total anthocyanin content of purple sweet potato is 519 mg/100 g wet weight.
Purple sweet potato anthocyanins also have physiological functions such as antioxidant, anticancer, antibacterial, protection against liver damage, heart disease and stroke. Purple sweet potato can be an anti-cancer because in it there is an active substance called selenium and iodine, and twenty times higher than other types of sweet potatoes. Purple sweet potatoes have antioxidant and antibacterial activity of 2.5 and 3.2 times higher than the several varieties of "blueberry", but it's also good to encourage the smooth circulation of blood.