Insoluble dietary fiber of raisin tree and preparing method thereof

Abstract

The invention discloses insoluble dietary fiber of raisin tree and a preparing method thereof. The raw material is raisin tree fruit or fruit residue thereof after brewing, vinegar production, sugar production, beverage production or active pharmaceutical ingredient extraction. According to the impurity in the raw material and the content, one or a plurality of methods of washing, acid treatment, alkali treatment and decoloring and the like are adopted to remove the impurity, and then dehydrating, drying and superfine grinding are executed. The prepared insoluble dietary fiber of raisin tree is light yellow or ivory powder with the average grain size of 10 to 90 Mum, the content of the insoluble dietary fiber is 50 percent to 100 percent, the retention ability is 1 to 10g/g, the liposuction ability is 1 to 10g/g, the swelling capacity is 1 to 10 mL/g, and the cation exchange resin capacity is 1 to 7 mmoI/g. The insoluble dietary fiber of raisin tree can be used for preparing food, functional food or medicines, or be taken as raw material or auxiliary material of food, functional food or medicines. The method for preparing the insoluble dietary fiber of raisin tree is simple, the production equipment is easily-obtained and has low cost, and the method is suitable for industrialized production.

Description

technical field [0001] The invention belongs to the field of edible fiber technology and products, and in particular relates to a preparation method and application of jujube insoluble dietary fiber. Background technique [0002] Hovenia acerba Lindl (Hovenia acerba Lindl) and Hovenia dulcis Thunb (Hovenia dulcis Thunb) are plants of the genus Jujube in the family Rhamnaceae. They are widely distributed in most provinces of the country and are very rich in resources. They are very precious medicinal and edible fruit trees. Its plump, twisted red-brown fruit stalk tastes as sweet as a jujube, hence the name "Guaizao". Guaizi, also known as golden hook pear, sweet midnight, Wanwei fruit, Wanzi fruit, golden fruit, golden hook, chicken distance, wood honey, pear jujube, wolfberry and so on. Extremely nutritious, rich in sucrose, glucose, fructose, organic acids, multivitamins, 18 essential amino acids, a large amount of dietary fiber, and nutritional trace elements and alkaloi...

AI Technical Summary

Problems solved by technology

[0003] However, jujube contains a large amount of insoluble dietary fiber residues after wine making, vinegar making, sugar making, making beverages and extracting medicinal active ingredients. There