Preparation method of sea buckthorn fruit lyophilized powder

Abstract

The invention relates to the technical field of deep processing of foods and in particular relates to a preparation method of sea buckthorn fruit lyophilized powder. The preparation method comprises the following steps: sorting fresh sea buckthorn fruits with branches and removing impurities; then putting the sea buckthorn fruits into a refrigerator, and refrigerating and preserving; taking out the sea buckthorn fruits with the branches; separating the fruits and the branches by adopting a fruit removing machine; washing and removing impurities; unfreezing; then crushing and pulping to preparesea buckthorn fruit pulp; transporting the sea buckthorn fruit pulp into a sterilization pot and carrying out high-pressure CO2 and ultrahigh-pressure cooperative sterilization treatment; putting into the refrigerator and refrigerating; then unfreezing and removing ice blocks; putting into the ultralow-temperature refrigerator and pre-freezing for 2 to 3h to obtain a sea buckthorn fruit pulp frozen block; carrying out vacuum refrigeration and drying to obtain a product. The product is convenient to transport and store, and original nutrients and flavor of the sea buckthorn fruits are kept tothe greatest extent; the storage duration of the product is improved, and the problems of seasons and regions are solved to a certain extent; the processing and utilization degree of sea buckthorns isimproved. The loss of vitamins and flavone type substance nutrient components in the sea buckthorns is relatively small.

Description

technical field [0001] The invention relates to the technical field of food deep processing, in particular to a method for preparing seabuckthorn whole fruit freeze-dried powder. Background technique [0002] Seabuckthorn is also known as sandy jujube, vinegar willow, sour buckthorn, and black thorn. Nearly 2 / 3 of seabuckthorn resources in the world are distributed in North China, Northwest China, Northeast my country and Southwest China. Seabuckthorn is a plant with the same source of medicine and food. Its fruit has great nutritional and health value. It contains a variety of vitamins, sugars, organic acids, proteins, amino acids, trace elements, and is especially rich in vitamin C. It is called "the king of vitamin C". "King" and "the third fruit of human beings" have the effects of protecting the liver, enhancing immunity, anti-oxidation and anti-aging, and have developed many products in food, beverages, health care products, medicines, drug monomer products, cosmetics...

AI Technical Summary

Problems solved by technology

[0003] It is rarely reported that the products produced by the production method of processed seabuckthorn products have a very short shelf life, and it is impossible to realize long-distance transportation and storage. Therefore, their sales places are limited, which is not conducive to mass production

There are also some methods that use some additives in seabuckthorn processed products, which require heat treatment to make the additives work, resulting in a large loss of vitamins and flavonoids in seabuckthorn.