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Frozen and fresh storage and transportation method of lychees

A lychee and chilled technology is applied in the fields of botanical equipment and methods, transportation and packaging, and preservation of fruits and vegetables. Low sulfur dioxide concentration and the effect of maintaining nutritional value

Inactive Publication Date: 2015-04-08
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 method for storing and transporting fresh lychee, which comprises the following steps in sequence:

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

[0037] b. Harvesting: picking 8-9 mature lychees by whole ears and light picking;

[0038] c. fruit selection: the lychees picked in the b step that have disease and insect pests and mechanical damage are removed;

[0039] d. Blanching: quickly put the lychee processed in step c into boiling water and scald for 10 seconds;

[0040] e. Drug treatment: Soak the lychees that have passed step d in an aqueous drug solution at a temperature of 5°C for 2 minutes, and then drain the water; The mass percentage of benlaide in the aqueous solution is 0.1%, and the mass percentage of Teketol is 0.1%;

[0041] f. Pre-cooling: the lychees treated in step e are removed from the lychees that have pes...

Embodiment 2

[0047] A method for storing and transporting fresh lychee, which comprises the following steps in sequence:

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

[0049] b. Harvesting: picking 8-9 mature lychees by whole ears and light picking;

[0050] c. fruit selection: the lychees picked in the b step that have disease and insect pests and mechanical damage are removed;

[0051] d. Blanching: quickly put the lychees processed in step c into boiling water for 15 seconds, and then drain the water;

[0052] e. Drug treatment: Soak the lychees that have passed step d in an aqueous drug solution at a temperature of 10°C for 5 minutes; the drug in step e is a mixture of benlaide and teketol, and the drug solution in The mass percentage of Tecdo is 0.1%, and the mass percentage of Tekdo is 0.1%;

[0053] f. Pre-cooling: the lychees treated in the ...

Embodiment 3

[0059] A method for storing and transporting fresh lychee, which comprises the following steps in sequence:

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

[0061] b. Harvesting: picking 8-9 mature lychees by whole ears and light picking;

[0062] c. fruit selection: the lychees picked in the b step that have disease and insect pests and mechanical damage are removed;

[0063] d. Blanching: quickly put the lychees processed in step c into boiling water for 8 seconds, and then drain the water;

[0064] e. Drug treatment: Soak the lychees that have passed through step d in an aqueous drug solution at a temperature of 8°C for 1 minute; the drug in step e is a mixture of benlaide and texedol, and the aqueous solution of benlette The mass percentage of Tecdo is 0.1%, and the mass percentage of Tekdo is 0.1%;

[0065] f. Pre-cooling: the lychee...

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PUM

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Abstract

The invention relates to a frozen and fresh storage and transportation method of lychees. The frozen and fresh storage and transportation method sequentially comprises the following steps: a, treating before harvesting; b, harvesting; c, selecting fruits; d. blanching; e, treating with medicines; f, pre-freezing; g, fumigating with sulfur; h, packaging; i, refrigerating; and j, transporting on a cold chain. The frozen and fresh storage and transportation method of the lychees has strong operability and is easy to popularize; and the nutritional value of the lychee fruits can be kept very well, and the freshness-keeping period and shelf life of the lychees are effectively prolonged.

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 lychee chilled. Background technique [0002] Since the 1980s, research on postharvest physiology and storage technology of litchi has made great progress. The common fresh-keeping methods at home and abroad include chemical antiseptic fresh-keeping, controlled atmosphere fresh-keeping, radiation fresh-keeping, low-temperature fresh-keeping, and heat-treatment fresh-keeping. But these methods ultimately rely on the cold chain circulation system. 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 ...

Claims

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Application Information

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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