Device and method for coloring red Chinese sand pears after harvesting

A sand pear, post-harvest technology, applied in the field of red sand pear post-harvest coloring device, can solve the problems of large fruit pollution, high cost, complicated operation, etc., and achieve the effect of easy promotion, low cost and broad market prospect

Inactive Publication Date: 2012-07-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a post-harvest coloring method for red sand pears, which solves the problems of high cost, heavy fruit pollution and complicated operation in the traditional method

Method used

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  • Device and method for coloring red Chinese sand pears after harvesting
  • Device and method for coloring red Chinese sand pears after harvesting
  • Device and method for coloring red Chinese sand pears after harvesting

Examples

Experimental program
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Effect test

Embodiment 1

[0024] On October 9, 2009, the orchard (25°N, 102°E) of Yunnan Red Pear Science and Technology Development Co., Ltd., Kunming City, Yunnan Province, was picked at the physiological maturity stage, and there were opaque fruit bags that were not yet colored during the fruit development period. The red sand pear'Yunhong Pear No. 1', placed in the following temperature and light environment,

[0025] 1) High temperature (average temperature is 27.1℃, average daily temperature difference is about 11.5℃) + UV-B+ white light, HTURB(+);

[0026] 2) High temperature (average temperature is 27.1℃, average daily temperature difference is about 11.5℃) + white light, HTUFB(-);

[0027] 3) Low temperature (average temperature is 17.7±1℃)+UV-B+white light, LTUVB(+).

[0028] The lighting conditions are controlled as follows: the height of the light source from the ground is 2.0m, and the artificial light source includes 1 20WUV-B (280-315nm) light source (Philips, TL 20W / 12RS, Netherlands) and 3 36W...

Embodiment 2

[0035] On August 25, 2010, the picking at the Jindi Fruit Tree Seed Demonstration Field in Xingyang City, Zhengzhou City, Henan Province has reached physiological maturity. During the fruit development period, the red sand pear'Mantianhong' with opaque fruit bags and not yet colored is placed as follows In the temperature and light environment,

[0036] 1) High temperature (average temperature is 28.3℃, average daily temperature difference is about 10.7℃) + UV-B+ white light, HTURB(+);

[0037] 2) High temperature (average temperature is 28.3℃, average daily temperature difference is about 10.7℃) + white light, HTUFB(-);

[0038] 3) Low temperature (average temperature is 17.7±1℃)+UV-B+white light, LTUVB(+).

[0039] The lighting conditions are controlled as follows: the height of the light source from the ground is 2.0m, and the artificial light source includes 1 20WUV-B (280-315nm) light source (Philips, TL 20W / 12RS, Netherlands) and 3 36W ordinary fluorescent lamps (FSL T 8 36W / 765...

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Abstract

The invention relates to a device and a method for coloring red Chinese sand pears after harvesting, and the method comprises the following steps: standing the Chinese sand pears which achieve the physiological maturity stage and are not colored under an environment with UV-B (ultraviolet-B) luminous intensity of 1-2 mu mol.m-2.s-1, luminous intensity of white light of 3-4 mu mol.m-2.s-1, averagetemperature of 25-29 DEG C, and average relative humidity of 55-75% for 5-10 days. The device comprises a closed storage room for placing the Chinese sand pears, wherein an UV-B light source and a white light source are mounted at the top of the storage room, a temperature control device and a humidification device are mounted on the side wall, and a ventilation opening is arranged at the bottom.After the Chinese sand pears are harvested, the Chinese sand pears are placed in the environment with the controllable temperature and the humidity, the fruits with relatively sufficient, stable and uniform coloring can be obtained by performing continuous irradiation under the artificial light source for a period of time, and the device and the method are specially used for promoting the coloring of the red Chinese sand pears, and can promote the synthesis of anthocyanin in the red Chinese sand pears in a quicker manner and improve the appearance quality.

Description

Technical field [0001] The invention relates to the technical field of fruit coloring, in particular to a red sand pear postharvest coloring device and method. Background technique [0002] Sand pear (Pyrus pyrifolia Nakai) is native to my country and is the most widely cultivated type in East Asia (Teng Yuanwen et al., 2004). When the sand pear fruit is mature, the skin color is generally yellow-green (or green, yellow), brown or red, of which yellow-green is the most common (Teng Yuanwen et al., 2005). Compared with the other two kinds of peels, there are relatively few types of red peels, which are mainly distributed in Sichuan and Yunnan provinces. Among them, there are about 40 local varieties and types of red sand pear found in Yunnan Province, ranking first in the country (Tao Keng et al. , 2004; Zhang Wenbing et al., 1997; 1998). my country is the world's largest pear production country. For a long time, the color of cultivated pear fruits is mainly yellow-green and bro...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): A23L1/27A23L5/40
Inventor滕元文俞波张东
OwnerZHEJIANG UNIV