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Hot air treatment method for fresh cut flowers and application of the method

A treatment method, hot air technology, which is applied in the field of pest removal treatment and forced hot air treatment, can solve the problems of residual treatment, incomplete, incomplete and other problems in chemical injury treatment, so as to improve the value of commodities, easy to operate, and easy to handle. fast effect

Inactive Publication Date: 2011-08-03
中国检验检疫科学研究院检测技术与装备研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the heat treatment of seedlings and flowers, hot water immersion and chemical injury agent spraying are commonly used. Because these fresh plants are sensitive to heat treatment, hot water treatment is mainly used for the treatment of D. dipsaci, and chemical injury agent treatment is prone to residue or ineffective treatment. thorough, incomplete

Method used

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  • Hot air treatment method for fresh cut flowers and application of the method
  • Hot air treatment method for fresh cut flowers and application of the method
  • Hot air treatment method for fresh cut flowers and application of the method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Tolerance of western flower thrips to forced hot air treatment: set three temperatures of 43, 46, and 49°C, relative humidity of 70%, 90%, and treatment time of 10, 20, 30, 60, and 90 minutes, respectively. The rearing method of thrips was based on Tamotsu Murail, 50 adults were placed in a 25ml headspace bottle, the mouth of the bottle was sealed with a net (pore size≤75μm), and each treatment was repeated 3 times. It is found that 46°C, 60min, 70-90%RH, 49°C, 20min, 70-90%RH can effectively kill the adults of Thrips occidentalis carried on cut flowers.

[0016] Table 1 Tolerance of western flower thrips to forced hot air treatment

[0017]

[0018]

Embodiment 2

[0020] Take a certain amount of 30-50 fresh-cut roses, put them flat into the forced hot air treatment equipment, set the temperature and humidity conditions for treatment as 46°C-90%RH, 46°C-70%RH, 49°C-90%RH , 49°C-70%RH, 52°C-90%RH, the treatment time is 30-60min. After the treatment, the weight loss rate was calculated, and placed in an environment of 25°C-60%RH, and the life of the vase in water was observed. Each treatment was repeated 3 times, and the flower stems were bent and had no good balance, and the color and luster of the flower stems and the flower type (openness) were senescent, which was the end of the vase life.

[0021] The results (see Table 2) found that among the three varieties of roses, under the same conditions, the weight loss rate of Black Magic was higher, followed by Snow Mountain, and Champagne was the smallest. Under the same temperature and treatment time, increasing the relative humidity is beneficial to reduce the weight loss rate and better...

Embodiment 3

[0025] Take a certain number of fresh-cut chrysanthemums, 30-50, and put them into the forced hot air treatment equipment. , 49°C-70%RH, 52°C-90%RH, the treatment time is 30-60min. After the treatment, the weight loss rate was calculated, and placed in an environment of 25°C-60%RH, and the life of the vase in water was observed. Each treatment is repeated 3 times, and the flower type (opening degree) of flower stem and leaf color is senescent, and the drying of the petal edge is the end point of the vase life. Result (see table 3) illustrates:

[0026] (1) The hot air treatment in chrysanthemum had the greatest effect on the weight loss of white chrysanthemum and yellow chrysanthemum, while the effect of daisy and gerbera was relatively small. At 46°C, for 60 minutes, the weight loss rate of white chrysanthemum and yellow chrysanthemum is relatively high;

[0027] (2) The quality of big white chrysanthemum, yellow chrysanthemum and gerbera at 46°C, 60min, RH70%, 49°C, 30min...

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Abstract

The invention provides a hot air treatment method for fresh cut flowers and an application of the method. The invention discloses a method for killing harmful organisms carried by the fresh cut flowers through hot air treatment, belonging to the technical field of the application of heat treatment technology in the control of the harmful organisms. In the invention, hot air with a certain air speed, temperature and humidity is mainly controlled to uniformly flow through the surfaces of the cut flowers for uniform heating; and the harmful organisms are killed by means of heating power after the surfaces and the inner parts of the cut flowers reach a certain temperature; and as the temperature is controlled within a range which the cut flowers can endure, the quality of the cut flowers is not influenced. When the method is adopted, the harm and spreading of the harmful organisms such as frankliniella occidentalis and the like carried on the cut flowers can be effectively prevented; meanwhile, the decay of the cut flowers due to bacteria, fungi and the like on the cut flowers can be reduced; the method is beneficial for retaining the freshness of the cut flowers; and the commodity value of the cut flowers is improved; moreover, the method is a novel pest killing technology for effectively replacing methyl bromide fumigation, which has the characteristics of high efficiency, good economy, good environmental protection and the like.

Description

technical field [0001] The invention relates to the pest removal treatment of quarantine pests carried on fresh cut flowers, in particular to forced hot air treatment technology and its application, and belongs to the technical field of heat treatment technology applied to pest control. Background technique [0002] The production scale, output value and trade volume of my country's flower industry have increased significantly in recent years, and the fresh-cut flower industry has become a new growth point to promote the development of my country's national economy and increase farmers' income. In 2009, the national flower planting area was 834,100 hectares, an increase of 7.56% over the previous year; the total sales volume was 71.976 billion yuan, an increase of 7.92% over the previous year; the total export value was 406 million US dollars, of which fresh cut flowers exported 230 million US dollars. However, fresh cut flowers are easy to carry a variety of harmful organis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G5/00
Inventor 王跃进张凡华刘涛李丽张广平
Owner 中国检验检疫科学研究院检测技术与装备研究所
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