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Device and method for coloring red Chinese sand pears after harvesting

A sand pear and post-harvest technology is applied in the field of post-harvest coloring devices for red sand pears, which can solve the problems of large fruit pollution, high cost, complicated operation, etc., and achieve the effects of easy promotion, low cost and broad market prospects.

Inactive Publication Date: 2011-08-17
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 Technology Development Co., Ltd. in Kunming City, Yunnan Province has reached physiological maturity, and the fruit development stage is covered with opaque fruit bags that have not yet been colored. The red sand pear 'Yunhongli No. 1' was placed in the following temperature and light environment,

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

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

[0027] 3) Low temperature (average temperature 17.7±1°C)+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 one 20WUV-B (280-315nm) light source (Philips, TL 20W / 12RS, Netherlands) and three 36W o...

Embodiment 2

[0035] On August 25, 2010, the pear 'Mantianhong', a red sand pear that has not yet been colored, was picked at the Jindi fruit tree demonstration field in Xingyang City, Zhengzhou City, Henan Province, and has reached physiological maturity. temperature and light environment,

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

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

[0038] 3) Low temperature (average temperature 17.7±1°C)+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 one 20WUV-B (280-315nm) light source (Philips, TL 20W / 12RS, Netherlands) and three 36W ordinary fluorescent lamps (FSL T 8 36W / 765, China) light source, the UV-B light intensity of...

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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, average temperature 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 postharvest coloring device and method for red sand pears. 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 ripe, the skin color is generally yellow-green (or green, yellow), brown or red, and yellow-green is the most common (Teng Yuanwen et al., 2005). Compared with the other two types of peel color, the types of red peel are relatively few, mainly distributed in Sichuan and Yunnan provinces, among which there are about 40 local varieties and types of red sand pears found in Yunnan Province, ranking first in the country (Tao Pang et al. , 2004; Zhang Wenbing et al., 1997; 1998). my country is the world's largest producer of pears. For a long time, the color of cultivated pear fruits has been mainly yellow-green and brown (...

Claims

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Application Information

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IPC IPC(8): A23L1/27A23L5/40
Inventor 滕元文张东俞波
Owner ZHEJIANG UNIV
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