Technique and device for preserving and storing pear blocks and processing pear pulp

Abstract

The invention discloses a technique and a special device for preventing pear blocks from discoloring and storing the pear blocks for a long time and producing pear pulp. According to the technical scheme, the technique comprises the steps of placing denucleated and sliced pear blocks in a preservation solution and deflating to prevent the pear blocks from discoloring; separating the deflated pear blocks from the preservation solution, introducing a carbon dioxide gas, carrying out quickly-freezing and storing; unfreezing by adopting a water soaking method, quickly unfreezing; making the unfrozen pear blocks into various products according to the demand. The technique solves the problem that the pears do not discolor and go bad when being stored for a long time, is remarkable in economic benefit and social benefit, and provides a shortcut for effectively utilizing fruit resources. The technique is suitable for preserving the pears, and also suitable for preserving and utilizing other fruits. The disclosed vacuum tank comprises a tank body and a cover which is buckled and sealed with the tank body, wherein a drain pipe is arranged at the bottom of the tank body, a valve is arranged on the drain pipe, and an exhaust tube connected with an air pump and an inflation tube connected with a carbon dioxide source are arranged on the cover. The technique has a certain popularization and application value in ensuring the quality.

Description

[0001] technical field [0002] The invention discloses a process and special equipment for preventing long-term storage of pear pieces from discoloration and producing pear pulp. [0003] Background technique [0004] Pear fruit processing can be made into canned pears, pear juice, dried pears, preserved pears, pear paste, pear syrup, pear syrup, pear preserves and other foods. Because pome fruit is not resistant to storage, it causes the seasonality of processing and production. Once it cannot be processed in time, the pome fruit rots and deteriorates, so it cannot be further processed, which is unfavorable for the effective utilization of pome fruit resources. [0005] The intolerance to storage of pome fruit is manifested in two aspects: on the one hand, unprocessed mature pome fruit is prone to rot and deterioration due to the action of mold carried by itself, and the storage period is very limited even in refrigeration; on the other hand, the pulp after preliminary pr...

AI Technical Summary

Problems solved by technology

Because pome fruit is not resistant to storage, it causes seasonal processing and production. Once it cannot be processed in time, the pome fruit will rot and deteriorate, and it will not be able to be further processed, which is not conducive to the effective utilization of pome fruit resources.

[0005] The intolerance to storage of pome fruit is manifested in two aspects: on the one hand, unprocessed mature pome fruit is prone to rot and deterioration due to the action of mold carried by itself, and the storage period is very limited even in refrigeration; on the other hand, the pulp after preliminary processing Freezing treatment can prolong its shelf life, but it is easy to change color and affect product quality

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