Purple sweet potato fermented yoghourt with effects of improving appetite and promoting digestion and preparation method thereof

Abstract

The invention discloses purple sweet potato fermented yoghourt with the effects of improving appetite and promoting digestion. The yoghourt is prepared from the following raw materials in parts by weight: 200-220 parts of purple sweet potatoes, 10-12 parts of dried skim milk, 4-6 parts of malt, 3-5 parts of medicated leaven, 5-7 parts of daisy flowers, 1-2 parts of semen litchi, 3-6 parts of immature bitter orange, 5-6 parts of elecampane, 6-7 parts of wheat bran, 2-3 parts of rape pollen, 2-4 parts of tea seed superfine powder, 4-7 parts of badam powder, 10-12 parts of glucose, a proper amount of streptococcus thermophilus and a proper amount of lactobacillus bulgaricus. In the production process of the purple sweet potato fermented yoghourt disclosed by the invention, purple sweet potato powder is subjected to micro-hole treatment, so that the purple sweet potato powder is complete in fermentation, and the yield is increased. Meanwhile, the obtained purple sweet potato yoghourt has the advantages of fine and smooth tissues, uniform texture, moderate sweetness and sourness, uniform and consistent color and moderate viscosity. According to the added materials such as the malt, medicated leaven and badam powder, the nutritive value of the product is increased, the dietary structure is improved, and the product has excellent health effects of improving the appetite and promoting digestion.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to fermented purple sweet potato yoghurt for invigorating stomach and eliminating food and a preparation method thereof. Background technique [0002] People in our country have always had the habit of eating sweet potatoes, but they still know little about purple sweet potatoes. As a kind of black food, purple sweet potatoes have high nutritional value, health care functions and broad development prospects. Purple sweet potato, formerly known as Chuanshan purple, also known as purple sweet potato and purple sweet potato, belongs to the annual herb of Convolvulaceae. The skin of purple sweet potato is purple and nearly black, and the flesh is purple to deep purple, with bright color, hence the name. Purple sweet potato can not only be eaten fresh, but also can be processed into a beautiful, nutritious and healthy snack food. Most provinces in my country are very suitable f...

AI Technical Summary

Problems solved by technology

[0003] At present, the research on purple sweet potato is mainly focused on the functional aspects of its nutritional components, but there are few researches on its processed products, and there has been no in-depth research on purple sweet potato lactic acid fermentation, and there are few related reports.