Preparation method of purple sweet potato fermented product

Abstract

The invention discloses a preparation method of a purple sweet potato fermented product. The preparation method comprises the following steps of: preparing whole purple sweet potato powder through microwave curing by using purple sweet potatoes and fresh milk or milk as main materials, and preparing fermented milk by using mixed bacteria of beneficial lactobacillus lactobacillus bulgaricus and streptococcus thermophilus according to a volume ratio of 1 to 1 as a mixed leavening agent; fermenting the microwave cured whole purple sweet potato powder and the fermented milk in a mixed manner; and sterilizing and filling, so as to obtain a finished product. The preparation method is simple to mix; the release of nutrient elements, such as anthocyanin of the purple sweet potato and selenium, can be effectively promoted by using the microwave cured whole purple sweet potato powder as a main material for fermenting the purple sweet potato; the effects of animal protein nutrition and plant dietary fiber can be effectively combined through fermentation; the purple sweet potato fermented product has the advantages of comprehensive nutrition, high additional value and good taste, and is beneficial to reception and digestion of a human body; and the purple sweet potatoes can be comprehensively used, and the waste emission and the environment pollution can be avoided.

Description

technical field [0001] The invention belongs to the technical field of agricultural product processing, and in particular relates to a preparation method of a purple sweet potato fermented product. Background technique [0002] With the rapid development of the food industry and the gradual increase of consumers' attention to food quality, safety and health benefits, people's requirements for food are also getting higher and higher. People's diet concept has already changed, not only to eat well, but also to eat safe and healthy. On the one hand, people are pursuing healthier food with health benefits, on the other hand, they are worried about the quality and safety of food. Especially in recent years, food safety issues have emerged in an endless stream in the food industry, which has made people "disgusted when talking about food". Purple sweet potato not only contains the nutritional components of ordinary sweet potatoes, but also rich in anthocyanins and selenium eleme...

AI Technical Summary

Problems solved by technology

But at present, there are few varieties of purple sweet potato processed food, all of which do not contain animal protein components, have incomplete nutritional components, low added value, and poor taste; moreover, it is easy to generate waste discharge and cause environmental pollution during the processing process