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Preparation for inducing fruit resistance for controlling diseases and using method thereof

A fruit and disease technology, applied in the field of biological preservation, can solve the problems of increased residual levels of chemical fungicides, toxic and side effects of chemical fungicides, drug-resistant pathogens, etc., and achieves the effects of low product cost, ensuring food safety, and reducing rot.

Inactive Publication Date: 2014-06-11
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many research reports that chemical fungicides have certain toxic and side effects
The report of the National Academy of Sciences (NAS) pointed out that the application of fungicides has caused harm to human health. The sales of nine tumorigenic compounds in the United States accounted for about 90% of all fungicides. Among all the pesticides used in food, fungicides Constitutes 60% of cancer risk
To make matters worse, the residual levels of chemical fungicides are increasing, leading to the emergence of drug-resistant pathogens

Method used

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  • Preparation for inducing fruit resistance for controlling diseases and using method thereof
  • Preparation for inducing fruit resistance for controlling diseases and using method thereof
  • Preparation for inducing fruit resistance for controlling diseases and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Change (2) of the processing step in Experiment 1.1 to the following:

[0078] Pear fruits were soaked in 10μg / ml, 100μg / ml, and 1000μg / ml γ-aminobutyric acid for 10 minutes to dry naturally, using sterile water as a control, and then kept at 25°C under constant temperature and humidity conditions (relative humidity 90%) After 24 hours of induction, wounds of uniform size were formed on the surface of each fruit with a sterile punch.

[0079] The rest of the content is the same as experiment 1.1.

[0080] The effect of γ-aminobutyric acid whole fruit treatment on the resistance of pear fruit to blue mold is shown in Table 2 below.

[0081] Table 2. The effect of γ-aminobutyric acid whole fruit treatment on pear fruit resistance (the detection time is the fifth day)

[0082] Processing number

[0083]As shown in Table 2, the incidence of disease after γ-aminobutyric acid 100 μg / ml whole fruit treatment was also reduced by about 22% compared with the control. ...

Embodiment 2

[0087] Change (2) of the processing step of Experiment 2 to the following:

[0088] Loquats were soaked in 1 μg / ml, 10 μg / ml, 100 μg / ml, and 1000 μg / ml GABA solutions for 10 minutes to dry naturally, and sterile water was used as a control. %), 24 hours after induction, wounds of uniform size were formed on the surface of each fruit with a sterilized punch.

[0089] The effect of γ-aminobutyric acid whole fruit treatment on the anthracnose resistance of loquat fruit is shown in Table 3.

[0090] Table 3. The effect of different induction concentrations of γ-aminobutyric acid on the anthracnose resistance of loquat fruit (the detection time is the 6th day)

[0091]

[0092] Results: As shown in Table 3, whole fruit treatment with different concentrations of γ-aminobutyric acid could inhibit the postharvest anthracnose disease of loquat fruit to a certain extent. It can also be seen from the results of the whole fruit treatment that on the 6th day, only the concentration of...

Embodiment 3

[0096] Embodiment 3, the impact of gamma-aminobutyric acid on the resistance of citrus fruit green mold disease

[0097] 1. Experimental materials:

[0098] The fruit is citrus, the variety is mid-late ripening Miyagawa tangerine, and the place of origin is Lishang Village, Tashan Township, Chun'an County, Zhejiang Province.

[0099] Pathogen: Penicillium digitatum, activated for 7 days at 25°C for later use.

[0100] 2. Processing:

[0101] 2.1 Preharvest treatment:

[0102] The following three treatments were set up in the preharvest test:

[0103] 1) Blank control, that is, water treatment control.

[0104] 2) γ-aminobutyric acid treatment: the concentration of γ-aminobutyric acid in each liter of preparation is 100 μg / ml. 48 hours before the fruit is picked, the preparation solution is evenly sprayed on the surface of the fruit until the surface of the fruit is wet. Harvest two days later and pack the fruit with plastic wrap for later use.

[0105] 2.2 Whole fruit p...

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Abstract

The invention discloses a preparation for inducing fruit resistance for controlling diseases. The preparation is gamma-aminobutyric acid aqueous solution with concentration being 100-1000mug / ml when the fruit is pear, the concentration of the gamma-aminobutyric acid is 100mug / ml; when the fruit is loquat, the concentration of gamma-aminobutyric acid is 1000mug / ml; when the fruit is citrus, the concentration of gamma-aminobutyric acid is 100mug / ml; the diseases comprise penicilliosis, anthracnose or penicillium digitatum. The using method of the preparation is as follows: A. spraying gamma-aminobutyric acid with concentration being 100-1000mug / ml on the surface of the fruit for 24-72h before the fruit is picked until the surface of the fruit is wetted; B. soaking the fruit picked after 24h in gamma-aminobutyric acid with concentration being 100-1000mug / ml for 1-30min.

Description

technical field [0001] The invention relates to the technical field of fruit postharvest disease prevention and control, in particular to a biological preservation technology for inducing fruit resistance by gamma-aminobutyric acid. Background technique [0002] The loss of fruit due to rot after harvesting is very huge. According to data, more than 80 million tons of fruits and vegetables rot every year in my country, causing economic losses of 75 billion yuan, accounting for more than 30% of the entire output value. Pathogen infection is an important factor affecting the physiology and metabolism of postharvest fruits, and the number of postharvest losses caused by diseases is considerable every year. For example: most fruits (pears, apples, citrus, jujube, etc.) will be infected by Penicillium expansum and cause fruit rot. This disease will cause 50% loss of stored fruit. On the other hand, P.expansum will produce patulin (4- hydroxy-4H-furo[3,2-c]pyran-2[6H]one), this t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/154
Inventor 余挺余辰杨佳丽郑晓冬曾丽珍路来风盛况陈方霞周涛施义冰
Owner ZHEJIANG UNIV
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