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Method for preventing and treating penicilliosis of kiwi fruits by virtue of high-energy electron beam radiation

A high-energy electron beam, kiwifruit technology, applied in horticultural methods, botanical equipment and methods, energy-saving measures, etc., can solve the problem that physical refrigeration is difficult to effectively control Penicillium disease, drug-resistant strains and chemical residues, threats to human health, etc. It can achieve the effect of stable and good VC content, enhancing defense mechanism and improving disease resistance.

Inactive Publication Date: 2020-06-12
NORTHWEST A & F UNIV
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Problems solved by technology

[0003] At present, in the commercial storage of kiwifruit, low-temperature refrigeration is mainly used, but physical refrigeration is difficult to effectively prevent and control the Penicillium disease, and excessive use of fungicides will lead to drug-resistant strains and chemical residues, which seriously pollute the environment and threaten human health.

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  • Method for preventing and treating penicilliosis of kiwi fruits by virtue of high-energy electron beam radiation
  • Method for preventing and treating penicilliosis of kiwi fruits by virtue of high-energy electron beam radiation
  • Method for preventing and treating penicilliosis of kiwi fruits by virtue of high-energy electron beam radiation

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experiment example

[0036] A method for preventing and treating kiwi blue mold by high-energy electron beam irradiation is as follows: kiwi fruit is harvested at normal maturity (SSC 6.0%-6.5% when harvested); one group without treatment is used as a control, and one group is an inoculation group. The inoculated group was soaked in 2% sodium hypochlorite for 2 minutes, washed twice with sterile water, and dried in the air. Four points were evenly taken at the equator of the fruit, and a sterilized toothpick with a diameter of 1 mm was used to pierce a small hole with a depth of 4 mm. 1×10 6 Soak in cfu / mL spore suspension for 5min and then air dry. The inoculation group was further divided into three groups according to different irradiation doses. After the fruits of the control group and the inoculation group were irradiated with high-energy electron beams at different doses (0, 0.4, 0.8, 1.2kGy), they were packaged in 0.03mm thick PE bags at 0-1°C and a relative humidity of 90%- 95% of the r...

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Abstract

The invention relates to the technical field of prevention and treatment of postharvest diseases of fruits, and specifically relates to a method for preventing and treating penicilliosis of kiwi fruits by virtue of high-energy electron beam radiation. By virtue of treatment of a proper dose of electron beams, the onset time of the penicilliosis of the kiwi fruits is delayed, the diameters of disease speckles are reduced, the disease index is decreased, the rotting rate is decreased, the storage time of fresh fruits at a low temperature is longer, the storage life of the fruits can be obviouslyprolonged, relatively high eating quality is maintained, and the safety is higher. The method adopted by the invention comprises the steps of: artificially inoculating (infecting) normally-harvestedmature kiwi fruits with Penicillium expansum, carrying out airing, flatly paving the kiwi fruits in a radiation tray in a single-layer manner, conveying the radiation tray into a high-energy electronbeam radiation field for radiation, putting the kiwi fruits into plastic bags and after the radiation is finished, and carrying out low-temperature storage.

Description

technical field [0001] The invention relates to the technical field of postharvest disease prevention and control of fruits, in particular to a method for preventing and treating kiwifruit penicillium by high-energy electron beam irradiation. Background technique [0002] Kiwi fruit is rich in nutrition, containing sugar, protein, polyphenolic compounds, minerals, amino acids and vitamins and other nutrients, known as the "king of fruits", and because of its rich plant nutrients and strong antioxidant properties Capability is considered to be a fruit of great health value. At the same time, kiwi fruit is a typical climacteric fruit with thin and juicy skin, which is easy to soften and rot after harvesting. Especially in the later stage of storage, a large number of fruits will rot due to mold infection. Penicillium is a common infectious disease of kiwifruit during storage. Penicillium expansum (Penicillium expansum) is the most common pathogen that causes kiwifruit postha...

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Application Information

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IPC IPC(8): A01G13/00A01G7/04A23B7/015
CPCA01G7/04A01G13/00A23B7/015A23V2002/00A23V2300/12Y02P60/14
Inventor 罗安伟黄天姿杨淑霞王丹梁锦李瑞娟
Owner NORTHWEST A & F UNIV
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