Preparation method for expansion jujube crisp slices

A technology of jujube and crisps, which is applied in the field of preparation of puffed jujube crisps, can solve the problems that have not been reported, and achieve the effect of overcoming oil content and short shelf life

Inactive Publication Date: 2009-09-30
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there is no report on the method of directly puffing fresh jujube at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0025] Raw material processing: get 6 kg of fresh jujube, wash, remove the core, and slice (thickness of the slice is 0.3 cm) to obtain 4 kg of jujube raw material to be expanded.

[0026] Expansion: first raise the temperature inside the expansion tank to 110°C, open the expansion tank, place the processed jujube raw materials to be expanded in the expansion tank, keep the temperature at 95°C, and raise the pressure inside the expansion tank to 0.3MPa, and Keep it for 10 minutes, and then reduce the pressure to a vacuum state instantly. At this time, the equilibrium vacuum degree is above -0.068MPa, start the vacuum system, and reduce the vacuum degree to -0.098MPa; close the solenoid valve, and reduce the temperature in the expansion tank to 80°C; After that, open the solenoid valve every 15 minutes, start the vacuum system, keep the vacuum at -0.098MPa, and keep it for 10 minutes, then close the solenoid valve. After 5 cycles, start the cooling system. The temperature of the...

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Abstract

The invention relates to a preparation method for expansion jujube crisp slices. Non-fried expansion fruit and vegetable is a novel fruit and vegetable dried product subsequent to a traditional fruit and vegetable dried product, a vacuum frozen and dried product and a vacuum low-temperature fried fruit and vegetable crisp slice. The expansion fruit and vegetable crisp slice has the advantages of low fat, low calorie, high fiber, rich vitamins and minerals, and the like, and the prior flavor of the fruit and vegetable is concentrated. At present, a method for directly expanding fresh jujubes is not reported at home and aboard. The invention adopts the technological process of producing the expansion jujube crisp slice taking the fresh jujube as the raw material: the fresh jujubes-washing-enucleation-section-expansion-cooling-sorting-packaging-expansion jujube crisp slices. The invention has the advantages as followings: firstly, the materials are not needed to carry out sugar permeability treatment or pre-drying treatment, so that the processing procedure is simplified; secondly, pressure-difference expansion is adopted, and the defects of high oil content and short shelf life of the prior production of jujube expansion by vacuum frying are overcome; and thirdly, pressure difference is increased, thereby the expansion effect of the jujube crisp slices is favorable.

Description

Technical field: [0001] The invention relates to a preparation method of puffed jujube chips. Background technique [0002] Jujube has a long history of cultivation in my country. The existing jujube forest area in the country is more than 466,700 hectares, with an annual output of 2 million kilograms of fresh jujube. Among them, the two rivers and two mountains and Shaanxi have the largest planting area, accounting for more than 90% of the national jujube production. [0003] Jujube is known as "vitamin pill" and has become a nutritious food popular all over the world. The dietotherapy, medical and health care functions of jujube, Shuoyuan history, among the 42 kinds of fruits discussed in "Qi Min Requirements", jujube ranks first. Li Shizhen, a famous ancient Chinese pharmacist, commented on jujube: "It is edible when it is ripe. According to the "Compendium of Materia Medica", "jujube smells sweet, flat, and non-toxic", "moistens the heart and lungs, relieves cough, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/212A23P1/14A23L19/00A23P30/36
Inventor 罗仓学卢亚婷
Owner SHAANXI UNIV OF SCI & TECH
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