Method for preparing nutrient enrichment dried beancurd sticks from selenium-enriched tea scraps

Abstract

The invention relates to a method for preparing nutrient enrichment dried beancurd sticks from selenium-enriched tea scraps. The method mainly comprises the steps of crushing the selenium-enriched teascraps, performing extraction by ultrasonic-assisted hot water extraction method, and performing vacuum concentration to obtain a selenium-enriched tea extraction solution; and peeling soybeans, performing soaking, performing grinding to obtain pulp, cooking the pulp, mixing the cooked pulp with the selenium-enriched tea extraction solution and a modifier in proportion, then performing uncoveringto obtain dried beancurd stick semi-finished products, and performing baking to obtain the nutrient enrichment dried beancurd sticks. The technical method provided by the invention has the characteristics of being low in production cost, simple, convenient and easy to operate; and the selenium-enriched tea scraps are subjected to high-value utilization, bioactive components of organic selenium, tea polyphenols and dietary fibers in the dried beancurd stick are strengthened, the prepared nutrient enrichment dried beancurd sticks concurrently have good mouth feel and the characteristics of health-care foods, and the method can be applied to production of high-grade nutrient enrichment dried beancurd sticks.

Description

technical field [0001] The invention relates to a bean curd stick and a preparation method thereof, in particular to a method for producing nutritionally enhanced bean curd sticks by utilizing selenium-enriched tea leftovers, which belongs to the food processing technology. Background technique [0002] Soybean is a high-quality source of plant protein because of its high protein content and amino acid composition similar to the needs of the human body. The processing of bean curd sticks began in the Tang Dynasty and has a history of more than 1,000 years. It is boiled soybean milk. After a certain period of heat preservation, the surface of the bean curd will produce an oily film, which is exposed and dried. It is one of the famous national specialty foods in my country. one. Yuba is a high-grade product in soybean products, in which soybean protein content is about 40%, fat is 20%, and it is rich in soybean saponin, riboflavin, amino acid and other nutrients needed by huma...

AI Technical Summary

Problems solved by technology

[0005] Invention patent "A Method for Making Tea Bean Curd Sticks" (Application No.: 201810551870.6) adds tea mixture in the process of soaking beans, grinding and pulling bean curd sticks. Although the flavor and nutrition of bean curd sticks are enriched to a certain extent, the extraction of active substances in tea leaves The rate is low, and the addition of tea mixture also has a potential negative impact on the texture of yuba