A kind of production method of jujube grain

Abstract

A jujube granule producing method is disclosed. The method includes raw material selecting, cleaning, dehydrating, stoning, sterilizing, enzymolysis, fermentation, low-oxygen low-temperature heat-pump drying, nitrogen charging pressure difference rapid puffing, medium and short wave infrared drying, crushing, grading, packaging, and other steps. The enzymolysis is performed firstly so that jujube viscosity is reduced and jujube flavor is adjusted. Then through progressive multi-stage drying, the color of jujubes is kept, a proper tissue structure is formed, the water content is controlled ingeniously. Through combining a crushing manner, the rotating speed, environment temperature and humidity, and other factors, the problem that jujubes are liable to stick to form clump or liable to be powdered, and the like in granulation is overcome by and objectives of improving uniformity, reducing viscosity, maintaining the original color, increasing the crisp degree, making granulation easy and avoiding powder generation are achieved. The method is simple and convenient to operate, high in controllability and high in mechanization degree. The utilization rate, edibility and healthcare properties of raw materials are improved. A product of the method can be used for snacks, soup making, medicines, tea drinks and stuffing.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a production method of jujube grains. Background technique [0002] Jujube fruit is the fruit of the jujube tree of the genus Jujube in the family Rhamnaceae. Because of its high nutritional value and medicinal value, it has attracted much attention from scholars and consumers. At present, drying is the main processing method of jujube, but there are the following problems in dried jujube products: ①The south is prone to mildew and insects, the storage period is short, and the size is large, and the core and skin are spit out when eating, which is inconvenient to eat; Jujube grains are cut by hand, which has a low degree of mechanization and is difficult to guarantee product quality; ③During the processing of jujube fruits, there will be a large number of defective fruits, and the current treatment method of directly throwing away the defective fruits has caused a great w...

AI Technical Summary

Problems solved by technology

At present, drying is the main processing method of jujube, but there are the following problems in dried jujube products: ①The south is prone to mildew and insects, the storage period is short, and the size is large, and the core and skin are spit out when eating, which is inconvenient to eat; Jujube grains are cut by hand, which has a low degree of mechanization and is difficult to guarantee product quality; ③During the processing of jujube fruits, there will be a large number of defective fruits, and the current treatment method of directly throwing away the defective fruits has caused a great waste of resources

[0004] A single pure jujube is used as raw material to produce jujube granules. Preliminary studies have found that jujube fruit raw materials with high sugar content, if the granulation method adopts the traditional process of removing pits, moistening, dicing, and drying raw materials, it is prone to sticking and agglomerating due to high water content; If the traditional process of drying first and then crushing is adopted, the degree of drying is not enough, it will become sticky and hard to break, if it is too dry or hard or crisp, it is easy to form powder and difficult to granulate, or the raw material heats up, absorbs moisture and sticks to a knife and forms agglomerates