Biological composite slow-release fresh-keeping agent and preparation method thereof

A slow-release, antistaling agent technology, applied in the field of biological compound slow-release antistaling agents, can solve the problems of short preservation time, high cost, poor safety, etc., and achieve the goal of reducing the amount of ethylene, better inhibiting effect, and reducing ripening effect Effect

Pending Publication Date: 2019-11-19
中山市海枣椰农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the defects of short fresh-keeping time, high cost or poor safety in the prior art, the present invention aims to provide a biological composite slow-release preservative, which has obvious antibacterial effect, long-term antibacterial effect, no chemical residue on the surface of fruit, No environmental pollution and other characteristics, especially suitable for the preservation of thin-skinned small berries such as red melons, and can extend the storage and transportation period of red melons

Method used

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  • Biological composite slow-release fresh-keeping agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Prepare an aqueous solution of camphor leaf extract: fully dry the fresh leaves in an oven at 60° C., and pulverize them with an ultrafine pulverizer. Mix 100 parts of camphor leaf powder with 400 parts of sterile water, use ultrasonic extraction at 30 °C for 1 hour, then vacuum filter, add sterile water to the filter residue according to this ratio, repeat vacuum extraction twice, and combine the filtrates.

[0035] 2. Activation of the adsorption carrier: put an appropriate amount of 4A molecular sieve in a microwave oven, heat it with high-grade firepower for 2 minutes, repeat the operation 4 times, the activation is successful, spread it out and seal it for temporary storage.

[0036] 3. Preparation of Cinnamomum camphora extract sustained-release agent: mix the aqueous solution of Cinnamomum camphora leaf extract with a mass ratio of 30:35: 4A molecular sieve, mix the two evenly, and place them in a dry and ventilated place to dry naturally to become Cinnamomum c...

Embodiment 2

[0042] Steps 1 to 4 are the same as in Example 1.

[0043] 5. Preparation of component A: Take 1.8 parts of sodium bicarbonate, 1.8 parts of anhydrous sodium carbonate, 1.8 parts of reduced iron powder, 4.5 parts of camphor slow-release agent, 4.5 parts of ethylene adsorption slow-release agent, mix well, and become component A , sealed for temporary storage.

[0044] 6. Preparation of component B: Take 0.2 parts of chlorine dioxide, 0.4 parts of diatomaceous earth, 1.2 parts of oxalic acid, and 1.4 parts of calcium chloride, mix them evenly, and put them into a breathable and water-permeable bag to become a chlorine dioxide slow-release bag. The breathable and water-permeable bag is one of virgin wood pulp paper, bamboo fiber paper, composite paper and non-woven fabric.

[0045] 7, antistaling agent finished product: step is the same as embodiment 1, promptly becomes the novel biocomposite sustained-release type antistaling agent finished product of the present invention.

Embodiment 3

[0047] Steps 1 to 4 are the same as in Example 1.

[0048] 5. Preparation of component A: Take 2.2 parts of sodium bicarbonate, 2.2 parts of anhydrous sodium carbonate, 2.2 parts of reduced iron powder, 5.5 parts of camphor slow-release agent, 5.5 parts of ethylene adsorption slow-release agent, mix well, and become component A , sealed for temporary storage.

[0049] 6. Preparation of component B: Take 0.2 parts of chlorine dioxide, 0.3 parts of diatomaceous earth, 1.2 parts of oxalic acid, and 0.8 parts of calcium chloride and mix them evenly as component B, and put them into a breathable and water-permeable bag to become chlorine dioxide slow-release Bag. The breathable and water-permeable bag is one of virgin wood pulp paper, bamboo fiber paper, composite paper and non-woven fabric.

[0050] 7, antistaling agent finished product: step is the same as embodiment 1, promptly becomes the novel biocomposite sustained-release type antistaling agent finished product of the pres...

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Abstract

The present invention provides a biological composite slow-release fresh-keeping agent. The raw materials of the biological composite slow-release fresh-keeping agent include camphor leaf extract, potassium permanganate, an adsorption carrier, sodium bicarbonate, sodium carbonate, reduced iron powder, chlorine dioxide, an organic acid and calcium chloride. Compared with fresh-keeping agents of thesame type on the market, the fresh-keeping agent of the invention has the following advantages: the fresh-keeping agent is obtained by mixing a natural bactericide, a chemical bactericide and a modified atmosphere regulator, so the fresh-keeping agent of the invention has better anti-mildew and fresh-keeping effects than single fresh-keeping agents; the natural bactericide is used to reduce the damages and residues of the chemical bactericide on fruits; a wrapping process of the adsorption carrier is adopted, so the gas release time is prolonged, and the slow release effect is achieved; the raw materials are easy to obtain, and the preparation and using processes of the product are simple, and do not need modified atmosphere assisting devices, so the cost of the product is low; the product is specially developed for small berries with similar characteristics to rCoccinia grandis fruits, and is a special fresh-keeping agent; and the product can be used in post-harvest storage or storage and transportation, has a wide range of uses, and is helpful for solving the difficulty in fresh keeping in long-distance transportation of the Coccinia grandis fruits.

Description

technical field [0001] The invention relates to the technical field of fresh-keeping of fruits and vegetables, in particular to a biological composite slow-release preservative and a preparation method of the preservative. Background technique [0002] Red melon (scientific name: Coccinia grandis (L.) Voigt) is a perennial climbing herb of Cucurbitaceae Coccinia grandis. There are about 30 species of Coccinia grandis in the world (40 species are recorded in other documents), distributed in Asia and Tropical areas of Africa, Mexico, Cuba and other places. According to "Flora of China" (Chinese Academy of Sciences, 1986), red melons are distributed in Guangdong, Guangxi (Weizhou Island) and Yunnan in my country, and are distributed wildly in Guangdong and Guangxi. Minority residents in Xishuangbanna, Yunnan have the habit of growing red melons in gardens and eating them as vegetables. [0003] Red melon is a thin-skinned berry. The skin itself is easily damaged. When harvest...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/154A23B7/157A23B7/152
CPCA23B7/154A23B7/157A23B7/152A23V2002/00A23V2200/10A23V2250/21A23V2300/14A23V2300/48
Inventor 王璐杨淑芳郭凯李雪艳王启为区仲甜王语柔梁凯庭
Owner 中山市海枣椰农业科技有限公司
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