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Safe and efficient special mildewproof preservative for apples and preparation method thereof

A fresh-keeping agent and safe technology, applied in apple fresh-keeping, apple safe and efficient anti-mildew special preservative and its preparation field, can solve the problems of microbial decay, failure to kill them, failure to remove safety hazards, etc., and achieve efficient removal of free radicals effect, delay fruit aging, high safety effect

Active Publication Date: 2020-11-24
阿克苏优能农业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Problems of the patent: ① The preservative fails to eliminate the potential safety hazards caused by the microorganisms lurking in the shallow layer of the fruit before harvest; ② When the apple is mechanically damaged or frozen, the microorganisms will quickly invade the inside of the fruit and cause rot. Can not play the role of anti-mold and sterilization
[0008] Problems of the patent: ①The preservative can only inhibit the growth and reproduction of microorganisms during storage but cannot kill them; ②The preservative cannot induce the fruit itself to produce disease resistance
[0010] The problem of this patent: Apple fruit produces disorders related to temperature and gas imbalance in the later stage of storage, including tiger skin disease and senile brown stain. The fresh-keeping solution of this invention cannot effectively solve the problem

Method used

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  • Safe and efficient special mildewproof preservative for apples and preparation method thereof
  • Safe and efficient special mildewproof preservative for apples and preparation method thereof
  • Safe and efficient special mildewproof preservative for apples and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0047] The preparation characteristics and effects of this fresh-keeping solution: a and b operations respectively form induced resistance and anti-mold ionic solution under optimal conditions, and the solution is mixed with other anti-fungal agents (thiophanate-methyl and gibberellin) in glycerol at the same time Under the action of gelatin, multi-component copolymerization is carried out. The suspension rate of the copolymer combined in this way is greater than 90%, and the stability reaches the national standard and the FAO standard. In addition, it can also improve the water-locking property of the fruit by 15%, making the drug effect last longer.

[0048] The effect of fresh-keeping liquid A is to sterilize the surface of pre-harvest fruit and induce the fruit to improve its own disease resistance. Among them, thiophanate-methyl and potassium permanganate play a leading role in killing bacteria, and sodium nitroprusside and erythroxylate play a leading role in improving fr...

Embodiment 1

[0066] This example is an optimized preparation and implementation plan: it is characterized in that the ABC three-liquid independent formula is prepared separately, and the apple fresh-keeping quality is jointly controlled:

[0067] (1) Optimal formula:

[0068] The components and parts by weight of the fresh-keeping liquid A are: 3 parts of thiophanate-methyl, 2 parts of sodium nitroprusside, 1.5 parts of gibberellin, 1 part of potassium permanganate, CaCl 2 3 parts, 2 parts of calcium lactate, 1.5 parts of sodium alginate, 1.5 parts of glycerin, 2 parts of gelatin, 1.5 parts of stearic acid, 85 parts of purified water;

[0069] The components and parts by weight of the fresh-keeping liquid B are: 2 parts of sodium nitroprusside, 1.5 parts of 1-methylcyclopropene, 3 parts of chitosan, Fe 3 o 4 1.2 parts, 1.3 parts of malic acid, 2 parts of benzoic acid, 1.5 parts of sodium citrate, 4 parts of plant essential oil, 2 parts of potassium sorbate, 1.5 parts of sucrose fatty aci...

Embodiment approach

[0080] One week before harvesting, spray fresh-keeping liquid A on apple fruits twice a day at 8-10 am and 5 pm, and spray fresh-keeping liquid B on the fruit after harvesting when it is hot in the field. On the day of storage and 2 months before delivery , Atomized and sprayed fresh-keeping liquid C once a week, pay attention to fresh-keeping liquid C first with fresh preparation (less than 3 days).

[0081] (4) Fresh-keeping effect:

[0082] After the apple fruit was stored at 0°C for 180 days (6 months), the water loss rate of the fruit was less than 7.28%, the hardness was 11.85N, the rot rate was less than 0.2%, the soluble solid content was 12.3%, and the tiger skin index was less than 3.3 %, the overall quality is the best.

[0083] Figure 1(a) and Figure 1(b) are the antibacterial effect diagrams of apples treated with sodium nitroprusside and 1-MCP after being inoculated with Penicillium extensa. It can be seen from Figure 1 that when the pathogenic and rot-causing ...

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Abstract

The invention relates to a safe and efficient special mildewproof preservative. The safe and efficient special mildewproof preservative comprises a resistance-inducing preservative solution A used before harvest, a magnetic trapping and quality control preservative solution B used after harvest and an antioxidation preservative solution C used at the end of storage. Shallow pathogenic microorganisms of apples are quickly and thoroughly killed by using a thiophanate methyl component in the preservative 7 days before harvest, the pesticide effect is lost at harvest, and the safety is high; and meanwhile, sodium nitroprusside and gibberellin components in the preservative can kill pathogenic bacteria mainly consisting of penicillium expansum and alternaria alternata in a targeted manner before and after harvest, and can induce and enhance the disease resistance of fruit tissue. An Fe3O4<+> chitosan component in the preservative solution B can achieve targeted high-efficiency adsorption and cooperative trapping effects of the pathogenic bacteria. In addition, sodium nitroprusside and 1-methylcyclopropene components contained in the preservation solutions used for fruits before and after harvest activate related enzyme activity and gene expression to induce production of the disease resistance of the fruits by adjusting sucrose metabolism and respiratory metabolism pathways.

Description

technical field [0001] The invention belongs to the field of food fresh-keeping, and relates to apple fresh-keeping technology, in particular to a safe, efficient and mildew-proof special fresh-keeping agent for apples and a preparation method thereof. Background technique [0002] Apples are rich in nutrition, sweet and refreshing, and are deeply loved by consumers. However, postharvest apples are prone to dehydration, wilting, aging, softening and rot during storage. Especially when apples suffer from mechanical damage and freezing damage, the phenomenon of microbial infection and rot is aggravated. [0003] At present, there are endless types of fruit and vegetable preservatives on the market. There are many types of fruit and vegetable preservatives. According to the characteristics of fruit and vegetable preservatives, they can be divided into three categories: biological preservatives, chemical preservatives, and food additives. Various antistaling agents have their ...

Claims

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Application Information

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IPC IPC(8): A23B7/154A23B7/157A01G7/06A01G13/00A01N59/24A01N59/16A01N59/08A01N47/34A01N43/12A01N45/00A01P1/00A01P3/00A01P21/00
CPCA23B7/154A23B7/157A01G7/06A01G13/00A01N59/24A01N59/16A01N59/08A01N47/34A01N43/12A01N45/00Y02A40/90
Inventor 王露茵李喜宏韩双胜杜美军邵重晓朱艺王猛郭根林
Owner 阿克苏优能农业科技股份有限公司
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