A novel fresh-jujube refrigeration method

A freezing method and technology of fresh jujubes, which are applied in the fields of fruit and vegetable preservation, food preservation, food science, etc., can solve the problems of inability to guarantee the supply of fresh jujubes all year round, and fresh jujubes are not resistant to storage

Inactive Publication Date: 2014-04-02
田权兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because fresh jujube is not resistant to storage, the time and space it can be eaten fresh by people are

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] Purchase the fresh dates supplied by the market, spray the sealed fresh dates with the same low-temperature antifreeze for quick freezing, and control the spray rate so that the fresh dates can be frozen quickly within 3 to 30 minutes. The low-temperature antifreeze liquid is mixed with methanol, ethanol, ethylene glycol organic matter and water to prepare a solution with a mass concentration of 4% to 96%, and calcium chloride, sodium chloride, potassium carbonate, magnesium nitrate, zinc nitrate, magnesium sulfate, bromide Seven kinds of inorganic salts such as sodium are mixed with water to form a solution with a mass concentration of 4% to 55%. Respectively using organic matter aqueous solution, inorganic salt solution, or organic matter and inorganic salt mixed aqueous solution as antifreeze liquid quick-frozen fresh jujube all reached the same effect.

[0007] Advantages of the present invention:

[0008] The skin has no cracks, and after thawing, it can still mai...

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PUM

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Abstract

The invention belongs to the field of fruit refrigeration processing production, and relates to a novel fresh-jujube refrigeration method. According to the method, fresh jujubes are sprayed with an anti-freezing solution having a temperature of -6 DEG C to 30 DEG C so as to quickly freeze the fresh jujubes. Products manufactured by the method are free of cracking surfaces. The appearances, rich nutrition and fresh food quality of the fresh jujubes can be preserved after unfreezing steps. Compared with other refrigeration methods, the method provided by the invention is simple and feasible.

Description

technical field [0001] The invention belongs to a novel fresh jujube freezing method. Background technique [0002] Because fresh jujube is not resistant to storage, the time and space that it can be eaten fresh by people have been subjected to many restrictions. So far, the market cannot guarantee the supply of fresh dates throughout the year. Contents of the invention [0003] The purpose of the present invention is to provide a novel fresh jujube freezing method, which can freeze the fresh jujube fruit in a short period of time. The quick-frozen fresh jujube fruit skin has no obvious cracks, and the original fresh jujube can still be preserved after thawing. Appearance, nutritional content and fresh food quality. [0004] The purpose of the present invention is achieved in that the fresh jujube is sprayed with low-temperature antifreeze to freeze rapidly. The used antifreeze includes methanol, ethanol, ethylene glycol organic matter and water mixed to form a solution...

Claims

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Application Information

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IPC IPC(8): A23B7/153
Inventor 田权兴
Owner 田权兴
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