Preparation method for instant lotus seed and tremella soup block

Abstract

The invention relates to a preparation method for an instant lotus seed and tremella soup block. The preparation method comprises the following steps: putting tremella into water and boiling with big fire for 10-15 minutes; directly adding washed dried lotus seeds and boiling with the big fire for 5-10 minutes; boiling with gentle fire for 10-20 minutes; adding 0.1-0.3% of lotus seed starch while a mixture is hot; adding white granulated sugar or rock candy, and agitating and dissolving; mixing to be uniform; instantly freezing the lotus seed and tremella soup at temperature ranging from -30 DEG C to -40 DEG C until the central temperature ranging from -20 DEG C to -25 DEG C is reached; freezing for 4-6 hours; freezing and drying by using a program temperature raising method, wherein drying and sublimation parameters are as follows: the cabin pressure is 130-140Pa, and the temperatures and the time are -10 DEG C (2 hours), -5 DEG C (5 hours) and 0 DEG C (2 hours): drying and decomposing, wherein the cabin pressure is 50-70Pa, the temperatures are 10 DEG C, 20 DEG C, 30 DEG C and 40 DEG C and the time is 2 hours; sealing, sterilizing and packaging by inflating nitrogen. The preparation method is small in energy consumption, low in cost and long in guarantee period; the previous flavor and nutrition of foods are kept and the instant lotus seed and tremella soup block can be eaten after being blended with cold boiled water.

Description

technical field [0001] The invention relates to a preparation method of instant lotus seed tremella soup cube. Background technique [0002] With the rapid development of our country's economy, people's living standards are gradually improving, especially the acceleration of the pace of life, prompting people to change the traditional way of life, more and more people do not want to spend more time in the kitchen, the new generation of convenience Food consumption groups are growing. Due to the accelerated pace of people's work and life, frequent travels, and the rapid development of the tourism industry, instant food that is fast and hassle-free is very popular. Furthermore, since more and more people realize that the traditional food processing methods produce long-term pickled, smoked and canned foods or their flavors will change, or their nutritional components will be lost. Some products also contain pathogenic or carcinogenic factors. In addition, due to the deterio...

AI Technical Summary

Problems solved by technology

Although lotus seed tremella soup is rich in nutrition and has health benefits, it is limited to family cooking, takes a long time, and is inconvenient to eat, which makes it difficult for some consumers to accept it, and cannot meet the public's nutritional and convenient consumption needs.