Purple sweet potato drink and preparation process thereof

Abstract

The invention discloses a purple sweet potato drink and a preparation process thereof. The preparation method is characterized by comprising the following steps of: preparing pure purple sweet potato liquid from fresh purple sweet potatoes, diluting by adding water, and adding white granulated sugar, sodium cyclamate, malic acid, sodium bicarbonate, potassium sorbate and citric acid to prepare the purple sweet potato drink, wherein the purple sweet potato drink comprises the following components in percentage by weight: 38.56 to 43.287 percent of pure purple sweet potato liquid, 60 to 55 percent of water, 0.7 to 0.9 percent of white granulated sugar, 0.07 to 0.09 percent of sodium cyclamate, 0.03 to 0.033 percent of malic acid, 0.3 to 0.33 percent of sodium bicarbonate, 0.03 to 0.032 percent of potassium sorbate and 0.3 to 0.33 percent of citric acid. The purple sweet potato drink prepared by purifying for multiple times, inoculating biologically and batching prevents nutritional ingredients of the purple sweet potatoes from being damaged, offers a good mouthfeel, is easy to store, and has the effects of cancer prevention and cancer inhibition.

Description

technical field [0001] The invention relates to a beverage made from purple sweet potatoes and a preparation process thereof. Background technique [0002] Purple sweet potato is a kind of crop. In the process of planting, purple sweet potato not only needs less fertilizer (farmyard manure is enough), but also has strong resistance to insect diseases. It hardly needs the application of chemical fertilizers and spraying pesticides. It is a good natural green food . At the same time, purple sweet potato is rich in polyphenols such as anthocyanin and chlorogenic acid. Polyphenolic compounds are natural antioxidants. The anthocyanin content of purple sweet potato ranks first among all crops. Purple sweet potato purple pigment has great value to maintain human health. Violet glycosides have anti-oxidation and cancer-inhibiting effects, and can also eliminate harmful active oxygen in the human body. But now purple sweet potatoes are generally eaten raw in rural areas. Although ...

AI Technical Summary

Problems solved by technology

But now purple sweet potatoes are generally eaten raw in rural areas. Although raw purple sweet potatoes have high nutritional value, they have a short shelf life.