Processing method of bamboo shoots

Abstract

The invention discloses a processing method of bamboo shoots. The processing method comprises the following steps of 1 material preparing, wherein fresh bamboo shoots are selected and washed to remove impurities; 2 blanching, wherein the bamboo shoots of which the impurities are removed are placed in 85-100-DEG C water to be blanched for 12-20 min; 3 leaching, wherein the bamboo shoots are cooled, bamboo shoot shells and bamboo shoot bases are removed, and then the bamboo shoots are washed and leached; 4 penetrating treating, wherein the bamboo shoots treated through the step 3 are put into composite penetrating fluid to be subjected to penetrating dewatering treatment and then taken out to be washed and leached; 5 vacuum drying, wherein the bamboo shoots treated through the step 4 are subjected to vacuum drying to obtain bamboo shoot products with the water content of 10%-20%; 6 packaging, wherein sterile vacuum packaging is adopted. According to the processing method, the bamboo shoots are processed through a technique combining penetrating dewatering predrying with vacuum drying, therefore, the phenomenon that tissue structures of the bamboo shoots are destroyed in the processing process can be reduced, and then the original qualities such as color and luster, flavor, texture and nutrition of the bamboo shoots can be kept to the maximum extent after the dried bamboo shoots are rehydrated.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a processing method of bamboo shoots. Background technique [0002] Dried bamboo shoots is a dried bamboo shoot product made from fresh bamboo shoots through dehydration and drying process. At present, there are two main drying methods for bamboo shoots: [0003] One is vacuum freeze-drying technology. For example, "Green Asparagus Vacuum Freeze-drying Technology Research" in "Food Science" discloses the vacuum freeze-drying technology of bamboo shoots. The process flow: raw materials → cleaning → cutting → blanching → cooling → green protection → Keep hard→pre-freeze→vacuum freeze-drying→softening→packaging→finished product; another example is "Research on vacuum freeze-drying process of bamboo shoots" in "Food Research and Development" also discloses the vacuum freeze-drying technology of bamboo shoots, the process flow: fresh bamboo shoots Bamboo shoots →...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned problems that exist in the prior art, a kind of processing method of bamboo shoot is provided, the present invention utilizes osmotic dehydration pre-drying to process bamboo shoot in conjunction with vacuum drying technology, mainly solves the following aspects problems: one, solved At present, dried bamboo shoots have poor taste after rehydration, and are soft and lack of brittleness; secondly, it solves the problem that the surface of dried bamboo shoots is dull, the color is dark brown, and lacks appearance; thirdly, it solves the problem of rehydration of current dried bamboo shoots Finally, the lack of original fragrance of bamboo shoots and the loss of nutrients; fourth, it can reduce the damage of nutrients that are not resistant to high temperature, and can maintain the original color, flavor, texture, nutrition and other qualities of bamboo shoots to the greatest extent.

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