Sustained-release two-component grape fresh-keeping pad

A slow-release, fresh-keeping pad technology, applied in the field of slow-release two-component grape fresh-keeping pads, to achieve the effects of eliminating phytotoxicity, good application value and market prospects, and wide applicability

Inactive Publication Date: 2013-01-30
新疆农业科学院农产品贮藏加工研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to aim at SO 2 and ClO 2 Due to the different antibacterial mechanisms and the limitations of sterilization and the bleaching effect of fruits and vegetables caused by excessive concentration, a method of producing SO by controlling the air permeab

Method used

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  • Sustained-release two-component grape fresh-keeping pad
  • Sustained-release two-component grape fresh-keeping pad

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0007] Example 1: The slow-release two-component Portuguese fresh-keeping pad is composed of a main board and a ventilation unit arranged on the main board (3). The ventilation units are evenly distributed on the main board (3), and each ventilation unit is divided into upper There are three middle and lower layers, the upper layer is the surface breathable layer (1), and the lower layer is the bottom breathable layer (4). SO is formed between the surface breathable layer (1) and the main board (3) 2 The release cavity is filled with a mixture of sulfites and slow-release agents, and ClO is formed between the bottom breathable layer (4) and the main board (3) 2 The release cavity is filled with a mixture of chlorates and sustained-release agents.

The present invention can use different ratios of release agents (sulfites and chlorates) to control SO 2 Gas and ClO 2 The amount and rate of gas release can be used as a stable single-component preservative, as well as two mixed gas ...

Example Embodiment

Example 2: Sodium metabisulfite is used for sulfites, sodium chlorate is used for chlorates, and the mass ratio of the two is 10:1 at 0°C and a relative humidity of 90% or more, respectively filled in SO 2 Release chamber (2) and ClO 2 In the release cavity (5). This acid ratio can ensure that SO during low-temperature storage of red grapes 2 ClO 2 The release period is 65 days, that is, the preservation period can reach 65 days. The specific structure of this embodiment is the same as that of the first embodiment.

Example Embodiment

Example 3: Sodium metabisulfite is used for sulfites, sodium chlorate is used for chlorates, and tartaric acid is used for slow release agent. The mass ratio of the three is 10:1:1 at 0°C and 90% relative humidity. Respectively fill in SO 2 Release chamber (2) and ClO 2 In the release cavity (5), this kind of ratio can ensure SO during low-temperature storage of red grapes 2 ClO 2 The release period is 80 days, that is, the preservation period can reach 80 days. The specific structure of this embodiment is the same as that of the first embodiment.

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Abstract

The invention relates to a fruit fresh-keeping pad, especially relates to a sustained-release two-component grape fresh-keeping pad used in table grape transport and storage for fresh keeping of table grapes, comprising a motherboard(3) and breathable units arranged on the motherboard(3), wherein the breathable units are distributed on the motherboard (3) and uniformly spaced, each breathable unit comprises three layers, the upper layer is a surface breathable layer (1), the bottom layer is a bottom breathable layer (4), the surface breathable layer (1) and the motherboard (3) form a SO2 release cavity which is filled with a mixture of sulfite and sustained release agent, the bottom breathable layer (1) and the motherboard (3) form a CO2 release cavity which is filled with a mixture of chlorate and sustained release agent, and the weight ratio of sulfite to chlorate to sustained release agent is 8-12:1:1. The sustained-release two-component grape fresh-keeping pad disclosed herein has the following advantages that: 1, because the generation of ClO2 gas requires SO2 consumption, the amount of the residual SO2 can be controlled, so that the accumulation of the SO2 gas and the generated hazard can be eliminated; 2, because of the successively generated SO2 gas and ClO2 gas, the effect of double sterilization can be achieved; and 3, the release concentrations of the two gases purposefully selected by adjusting the proportion of the formulation and the moisture permeability and breathability of the film, thus the applicability of the sustained-release two-component grape fresh-keeping pad disclosed herein is wide, and the sustained-release two-component grape fresh-keeping pad disclosed herein has good usage value and market prospect.

Description

technical field [0001] The invention relates to a fruit fresh-keeping mat, in particular to a slow-release two-component grape fresh-keeping mat used for fresh-keeping of table grapes and applied to transportation and storage of fresh-table grapes. Background technique [0002] At present, SO is widely used at home and abroad 2 As a grape preservative, SO 2 Because of its reducing properties, it can reduce the oxygen content in plant tissues, inhibit the activities of oxidase and microorganisms, prevent food spoilage, discoloration and loss of Vc, so as to achieve the purpose of freshness preservation. But SO 2 It is difficult to control the release amount and release speed, and excessive amount will cause phytotoxicity, resulting in bleaching of fruits and vegetables, excessive residues and other problems; however, the concentration is too low to achieve antibacterial effect, [0003] Fresh-keeping paper is mainly used to keep grapes commercially transported fresh, but ...

Claims

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Application Information

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IPC IPC(8): A23B7/152
Inventor 吴斌车凤斌吴忠红张玉丽郭芹张平王吉德
Owner 新疆农业科学院农产品贮藏加工研究所
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