Preparation method of instant selenium-enriched corn flour

Abstract

The invention discloses a method for preparing additive-free instant selenium-enriched corn flour by a spray-drying process. The method is characterized by comprising the following steps: with selenium-enriched corns subjected to selenium biological nutrient enrichment as a raw material, performing processes of cleaning, peeling, degerming, powder coarsening, curing, powder thinning, slurry settling, spray drying, and quantitative subpackaging to prepare the additive-free instant selenium-enriched corn flour with the water content of less than 7wt%, the granularity of 100-120 meshes, the instant time of shorter than 30 seconds and the selenium content of 10-250 micrograms / 10 grams. The method disclosed by the invention realizes preparation of the instant corn flour under an additive-free condition; the instant corn flour is fine and smooth in taste, has the fragrance of puffed corn flour, realizes selenium quantification, and provides a proper and scientific choice for different people with the need of selenium supplement.

Description

technical field [0001] The invention relates to a preparation method of instant selenium-enriched corn flour, which belongs to the field of instant food preparation. Background technique [0002] Selenium is an essential trace mineral element for humans and mammals. It is an essential component of as many as 30 active enzymes such as glutathione peroxidase (GSH-Px) and selenoprotein P. It has anti-oxidation, heart protection , anti-hepatic necrosis, prevention and treatment of myopia and cataracts, detoxification, improve immunity, delay aging and enhance reproductive function and other physiological functions. According to incomplete statistics, there are more than 40 countries and regions lacking selenium in the world, and 72% of my country's regions are selenium-severely deficient areas, and nearly 900 million people are suffering from health threats caused by selenium deficiency. In addition, with the increasingly serious environmental pollution, pneumonia, liver cancer...

AI Technical Summary

Problems solved by technology

[0004] (1) Corn flour agglomeration: Corn is processed into selenium-enriched corn flour products through processes such as peeling, degerming, crushing, and puffing. Dispersed, unable to achieve instant effect;

[0005] (2) Sticky wall: Due to a large amount of agglomeration during brewing, the lumpy corn flour is easy to stick to the wall of the cup, making it difficult to be removed during rinsing

[0006] And the method that solves this problem at present all is by adding methods such as dispersant, as: " the development of high-fiber puffed corn meal " (Li Jixin, Liu Ya, Zheng Gang, Ye Zhijun, food and feed industry, 1999) by adding rice bran, High-fiber ingredients such as soybean bran can realize the palatability and solubility of corn flour; "Research and Development of Instant Black Waxy Corn Flour" (Zhang Zhong, Pan Wenli, Grain, Oil and Food Science and Technology, 2005) added defatted soybean flour, oligomeric The mode of fructose and milk powder realizes the instant property of corn flour; "Instant wild plant synthetic corn compressed food granule and its processing method" (ZL200610010134.7) by soaking corn in the leachate of Yuan mushroom, jujube, pine nut, Codonopsis pilosula, etc. , and then milling and compressing to obtain instant synthetic corn flour granules. Although the nutritional content of corn flour is increased, a variety of raw materials are introduced at the same time, which destroys the naturalness of the product; instant corn granules and their production methods (application number: 201110050672. In X), although it is claimed that it can achieve instant dissolution, the 20-40 mesh particles have obvious rough taste, and there will also be problems of agglomeration, difficulty in dispersing, and sticking to the wall

However, none of these solutions can realize the concept of pure natural, healthy food without additives, let alone the principle of scientific and quantitative selenium supplementation