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A kind of frozen litchi storage and transportation method

A lychee, ice temperature technology, applied in the fields of botanical equipment and methods, transportation and packaging, fruit and vegetable preservation, etc., can solve the problems of rough packaging, difficult commercial production, low preservation level, etc. Low sulfur dioxide concentration and the effect of maintaining nutritional value

Inactive Publication Date: 2017-10-13
ZHONGKAI UNIV OF AGRI & ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the scientific and technological novelty search report and market survey, although litchi fresh-keeping technology has made great progress in recent years, due to the concentrated harvesting period of litchi, the fresh-keeping technology and equipment are not yet perfect, the circulation system and logistics methods are not perfect, and it is difficult to achieve large-scale production. Modernized commercial production, coupled with lagging deep processing methods and technologies, have greatly restricted the development of litchi industry, so the preservation technology and circulation of litchi are still the bottleneck restricting the development of litchi industry
[0003] Because the technical difficulty of lychee normal temperature preservation is great, and there are few researchers, the freshness level of commercial operation is not high, and the method is simple, and the packaging is rough (Song Guangquan et al., research on the light stability of lychee packaging and its anthocyanins; "Agricultural Engineering Academic Journal, 2002, 3; Liu Jianliang, Guangdong litchi production characteristics and industrial development analysis "Agronomy Bulletin", 2005, 2), this fresh-keeping technology is not only difficult to enter supermarkets and international markets, but also far from meeting the needs of litchi industry development, Due to the constraints of the cold chain system and circulation mode, for a long period of time, what the market urgently needs is the organic combination of commercially operable lychee packaging and its low-temperature storage and transportation preservation technology and modern circulation technology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A lychee chilled storage and transportation method, which successively comprises the following steps:

[0036] a. Pre-harvest treatment: on the 10th day before picking, spray the canopy of litchi with a 2,4-D aqueous solution, and the concentration of the 2,4-D aqueous solution is 500ppm;

[0037] b. Harvesting: 8-9 mature lychees are picked by the whole ear and light picking method;

[0038] c. fruit selection: remove the lychees with pests and diseases and mechanical damage in the lychees picked in step b;

[0039] d. blanching: quickly put the lychees treated in step c into boiling water and blanching for 10s;

[0040] e. Drug treatment: soak the lychees in step d in a drug aqueous solution with a temperature of 5°C for 2 minutes, and then drain the water; the drug in step e is a mixture of phenoxylate and tecdol, and the drug The mass percentage of Benzolide in the aqueous solution is 0.1%, and the mass percentage of Tecodol is 0.1%;

[0041] f. pre-cooling: the ...

Embodiment 2

[0047] A lychee chilled storage and transportation method, which successively comprises the following steps:

[0048] a. Pre-harvest treatment: on the 15th day before picking, spray the canopy of litchi with 2,4-D aqueous solution once, and the concentration of the 2,4-D aqueous solution is 650ppm;

[0049] b. Harvesting: 8-9 mature lychees are picked by the whole ear and light picking method;

[0050] c. fruit selection: remove the lychees with pests and diseases and mechanical damage in the lychees picked in step b;

[0051] d. blanching: quickly put the lychees treated in step c into boiling water and blanching for 15s, and then drain the water;

[0052] e. Drug treatment: soak the lychee after step d in a drug aqueous solution with a temperature of 10° C. for 5 minutes; the drug in step e is a mixture of benlatx and tecdol, and the drug solution in the drug solution is benlatx. The mass percentage of 0.1%, the mass percentage of Tecoto is 0.1%;

[0053] f. Pre-cooling: ...

Embodiment 3

[0059] A lychee chilled storage and transportation method, which successively comprises the following steps:

[0060] a. Pre-harvest treatment: on the 12th day before picking, spray the canopy of litchi with a 2,4-D aqueous solution, and the concentration of the 2,4-D aqueous solution is 800ppm;

[0061] b. Harvesting: 8-9 mature lychees are picked by the whole ear and light picking method;

[0062] c. fruit selection: remove the lychees with pests and diseases and mechanical damage in the lychees picked in step b;

[0063] d. blanching: quickly put the lychees treated in step c into boiling water and blanching for 8s, and then drain the water;

[0064] e. Drug treatment: soak the lychee after step d in a drug aqueous solution with a temperature of 8°C for 1 minute; the drug in step e is a mixture of benazet and tecdol, and benlater in the drug water solution The mass percentage of 0.1%, the mass percentage of Tecoto is 0.1%;

[0065] f. Pre-cooling: the litchis treated in ...

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PUM

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Abstract

The invention relates to a method for storing and transporting fresh lychees, which comprises the following steps in sequence: a. pre-harvest treatment; b. harvesting; c. fruit selection; d. blanching; e. drug treatment; f. pre-cooling; g . sulfur fumigation; h. packaging; i. cold storage; j. cold chain transportation. The chilled litchi storage and transportation method of the present invention has strong operability, is easy to popularize, can better maintain the nutritional value of litchi fruits, and effectively prolongs the preservation period and shelf life of litchis.

Description

technical field [0001] The invention relates to the field of fresh-keeping and transportation of fruits, in particular to a method for storing and transporting frozen lychees. Background technique [0002] Since the 1980s, great progress has been made in the research on postharvest physiology and storage technology of litchi. Common preservation methods at home and abroad include chemical preservation, modified atmosphere, radiation, low temperature, and heat treatment. But these methods ultimately rely on cold chain distribution systems. According to the scientific and technological novelty search report and market survey, although the lychee preservation technology has made great progress in recent years, it is difficult to achieve scale due to the excessive concentration of lychee harvesting period, the incomplete preservation technology and equipment, and the imperfect circulation system and logistics method. The rapid commercial production, coupled with the lag in deep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/005A23B7/154A23B7/144A01G13/00A01D91/04A01N47/38A01N39/04A01P1/00A01P3/00A01P7/04A01P21/00B65D81/18B65D85/34
Inventor 王德培方凯
Owner ZHONGKAI UNIV OF AGRI & ENG