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Deoxidization preservative suitable for low-humidity environment and preparation method thereof

A deoxidizing preservative and low-humidity technology, applied in the field of deoxidizing preservative and its preparation, can solve the problems of soft packaging film, incomplete oxygen absorption, delamination, etc., achieve complete oxygen absorption and solve the problem of greatly improved oxygen absorption capacity Falling effect

Inactive Publication Date: 2014-05-07
GUANGDONG GUANGYI TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The oxygen absorption capacity of the existing deoxidizing preservatives will be significantly reduced in an environment with low water activity, and the high humidity of the deoxidizing agent itself will lead to an increase in the water activity of the fresh-keeping food. When the free moisture content of the deoxidizing agent itself is high, the product will Moisture will transfer to the packaging film during storage, which will cause the paper-plastic composite packaging film to become soft and delaminated. However, the free moisture of the deoxidizer itself is low. When used in a low-humidity environment, the oxygen absorption capacity of the deoxidizer decreases significantly. Incomplete oxygen absorption in the packaging

Method used

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  • Deoxidization preservative suitable for low-humidity environment and preparation method thereof
  • Deoxidization preservative suitable for low-humidity environment and preparation method thereof
  • Deoxidization preservative suitable for low-humidity environment and preparation method thereof

Examples

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Embodiment 1

[0034] A deoxidizing preservative suitable for low-humidity environments, comprising 40% of reduced iron powder, 1% of activated carbon, 35% of water, 2% of water-absorbing resin, 15% of silicon dioxide, 2% of sodium bromide, oxidized Calcium 5%.

[0035] The method for preparing the deoxidizing preservative comprises the following preparation steps:

[0036] Step A, the sodium bromide of described amount is dissolved in water, obtains sodium bromide aqueous solution;

[0037] Step B. Mix the amount of reduced iron powder with the water-absorbing resin for 1 to 2 minutes, then add half the amount of sodium bromide aqueous solution at a stirring speed of 40 to 60 rpm and stir evenly for 4 to 8 minutes to obtain a mixture Material Ⅰ;

[0038] Step C. Mix silicon dioxide into the other half of the sodium bromide aqueous solution, mix well and add activated carbon and calcium oxide respectively to obtain the mixed material II;

[0039] Step D, mixed material I and mixed materia...

Embodiment 2

[0042] A deoxidizing preservative suitable for low-humidity environments, comprising 70% of reduced iron powder, 3% of activated carbon, 11% of water, 1% of water-absorbing resin, 8% of silicon dioxide, 2% of sodium bromide, oxidized Calcium 5%.

[0043] The method for preparing the deoxygenation preservative is the same as in Example 1.

Embodiment 3

[0045] A deoxidizing preservative suitable for low-humidity environments, comprising 54% of reduced iron powder, 2.2% of activated carbon, 30% of water, 1.5% of water-absorbing resin, 9.5% of silicon dioxide, 0.8% of sodium bromide, oxidized Calcium 2%.

[0046] The method for preparing the deoxygenation preservative is the same as in Example 1.

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Abstract

The invention relates to the technical field of food preservation, and particularly relates to a deoxidization preservative suitable for low-humidity environment and a preparation method thereof. The deoxidization preservative provided by the invention comprises the following components in percentage by weight: 40-70% of reduced iron powder, 1-3% of active carbon, 10-35% of water, 1-2% of water-absorbent resin, 8-15% of silicon dioxide, 0.8-2% of sodium bromide and 2-5% of calcium oxide. The substances are added at different time and stirred uniformly to obtain a finished product. The deoxidization preservative provided by the invention not only can absorb oxygen normally in a low-humidity environment, but also can prevent the moisture of a deoxidizing agent from being transferred to the dry food to realize more thorough absorption of oxygen in food packages.

Description

technical field [0001] The invention relates to the technical field of food preservation, in particular to a deoxidizing preservative suitable for low-humidity environments and a preparation method thereof. Background technique [0002] Food spoilage is the result of food oxidation and the reproduction of microorganisms and insects such as mold, bacteria, and yeast. Food oxidation is caused by the direct action of oxygen, and the growth of microorganisms and insects is also closely related to oxygen. In order to prevent food from oxidative deterioration and avoid the influence of oxygen on food, manufacturers often use methods such as vacuum packaging, gas displacement packaging, enclosing deoxidizer packaging, and adding antioxidants. Among them, compared with vacuum packaging and gas displacement packaging, the method of using deoxidizer in the package to remove oxygen has the advantage of not only removing oxygen in the package, but also removing oxygen and dissolved sol...

Claims

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Application Information

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IPC IPC(8): A23L3/3436
CPCA23L3/3436
Inventor 李炎松陈春
Owner GUANGDONG GUANGYI TECH IND
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