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Biological fresh keeping method for winter date

A technology of biological preservation and winter jujube, which is applied in the fields of fruit and vegetable preservation, food preservation, food science, etc., can solve the problems of short shelf life, high cost, and inability to maintain flavor, so as to reduce preservation cost, solve short shelf life, and improve immunity Effects of capacity and disease resistance

Inactive Publication Date: 2008-04-02
李桂凤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the deficiencies of the existing fresh-keeping technology, and provides a biological fresh-keeping method, which can not only prolong the fresh-keeping time of winter jujube, but also solve the short shelf life, inability to maintain the original flavor and low cost that cannot be solved by the modified atmosphere method. A Biological Preservation Method of Winter Jujube with Problems of Too High

Method used

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  • Biological fresh keeping method for winter date
  • Biological fresh keeping method for winter date
  • Biological fresh keeping method for winter date

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The first step: Fumigation with sulfur dioxide. The specific method is to light 2.0 kilograms of sulfur in a room with a space of 50 cubic meters to smoke, and then ventilate after 36 hours of sealing;

[0053] The second step: timely harvesting, grading and pre-storage treatment. According to the harvesting requirements, the jujube fruits are picked when they are half red or 1 / 3 red when they are ripe, graded after picking, and treated before storage, that is, soaking the fruits in 15mg / kg AB solution for 20 minutes.

[0054] Preparation of AB solution:

[0055] The preparation process of A solution: take by weighing 2 grams of garlic, 2 grams of aloe vera, 1 gram of yeast powder to form a mixed powder 5g, add 2.5g of vinylpyrrolidone and a small amount of quartz sand and 5ml of phosphate buffer (PH=6), under ice bath Fully grind into a homogenate, put it into a centrifuge tube, freeze and centrifuge the homogenate at 10,000 R / min for 10 minutes, and take the superna...

Embodiment 2

[0067] Step 1: Spray the walls and the ground with a solution prepared with 40% formaldehyde and water at a ratio of 1:1, and seal it for 24 hours after spraying before ventilating.

[0068] The second step: timely harvesting, grading and pre-storage treatment. According to the harvesting requirements, the jujube fruit is picked when 1 / 3 or 1 / 2 of the mature period turns red, and the day before picking and storing, spray the winter jujube tree with 20mg / kg of AB solution;

[0069] Preparation of AB solution:

[0070] The preparation process of A solution: take by weighing 1.5 grams of garlic, 1.5 grams of aloe, 2 grams of yeast powder to form a mixed powder 5g, add 3g of vinylpyrrolidone and a small amount of quartz sand and 6ml of phosphate buffer (PH=6), fully Grind it into a homogenate, put it into a centrifuge tube, refrigerate and centrifuge the homogenate at 8000 R / min for 15 minutes, and take the supernatant for later use.

[0071] The extraction process of B solution...

Embodiment 3

[0082] Step 1: Disinfect with bleach. Take 40 grams of bleaching powder and add 1 kg of water to make a solution, and carefully spray it on the walls, roof and ground;

[0083] The second step: timely harvesting, grading and pre-storage treatment. According to the harvesting requirements, jujube fruits are picked at the mature and semi-red stage, graded after picking, and treated before storage, that is, soaking the fruit in 10mg / kg AB solution for 25 minutes.

[0084] Preparation of AB solution:

[0085] The preparation process of A solution: take by weighing 10g of mixed powder composed of 4 grams of garlic, 4 grams of aloe vera, and 2 grams of yeast powder, add 5 g of vinylpyrrolidone and a small amount of quartz sand and 10 ml of phosphate buffer (PH=6), and put it in an ice bath Fully grind into a homogenate, put it into a centrifuge tube, freeze and centrifuge the homogenate at 10,000 R / min for 13 minutes, and take the supernatant for use.

[0086] The extraction proc...

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Abstract

The invention discloses a biological fresh keeping method for winter jujubes, comprises the following steps, (1) carrying out disinfection treatment to the storage environment, (2) picking ripened jujubes, immersing in an AB solution with a certain concentration, or spraying the trees one day before picking, (3) loading the jujubes into bags, (4) carrying out simple regulation to the environmental temperature, humidity and mixture gas. The storage fresh-keeping period for winter jujube can be extended by 4-6 months.

Description

Technical field: [0001] The present invention relates to a biological fresh-keeping method for winter jujube, which is a new breakthrough in the research field of fruit storage and fresh-keeping. It improves the immunity and anti-infection ability of the fruit itself from the perspective of nutritional immunology and molecular biology, and reduces the respiratory intensity of the fruit. It inhibits the hydrolysis of organic matter, opens up a new way for the study of fruit and vegetable preservation, and invents a biological preservation method for winter jujube. Background technique: [0002] Winter jujube has beautiful appearance, excellent taste, bright ocher red, thin skin, crispy meat, rich juice, strong sweetness, slightly sour taste, and no dregs in the mouth. It has been determined that it not only contains a variety of nutrients, but also contains a variety of trace elements, as well as anticancer substances, such as cyclic adenosine monophosphate (CANP), cyclic gua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/153A23B7/16A23B7/152
Inventor 李桂凤李宗霖
Owner 李桂凤
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