Method for reducing vomitoxin in wheat grain by wet ozone

A technology of vomitoxin and wheat grains, which is applied in the direction of drying seeds, food drying, food science, etc., can solve the problems of high drying energy consumption and high moisture content of wheat, achieve low moisture content, facilitate subsequent drying, and improve processing efficiency effect

Inactive Publication Date: 2019-01-04
BENGBU COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For wheat grains, the vomitoxin is mainly stored in the bran layer of wheat grains. The traditional method of removing vomitoxin from wheat grains is to wash the wheat, which will result in higher moisture content in the wheat and greater energy consumption for later drying.

Method used

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  • Method for reducing vomitoxin in wheat grain by wet ozone

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A method for reducing wheat grain vomitoxin by wet ozone, the preparation method comprising the following steps:

[0033] (1) Determining the content of vomitoxin in wheat grains is 1340μg / kg, weighing 50kg of wheat grains with excessive vomitoxin on an electronic scale, adding 50kg of water, soaking time is 1min, stirring and soaking and draining, the moisture content is determined to be 14.2 %;

[0034] (2) if figure 1 As shown, the drained wheat grains are placed in an ozone fumigator. The design diameter of the circle at the bottom of the fumigator is 2 meters, and the area of ​​the circle is 31,400 square centimeters. There is a small hole with a diameter of 2 cm. The ozone gas enters from the bottom of the fumigator. The wheat grains are placed on the upper part of the fumigator on the three-layer screen. The thickness of the wheat grains is 1-1.5 cm. Turn on the ozone generator and adjust the ozone concentration at 100mg / L, the flow rate is controlled at 3140 L...

Embodiment 2

[0037] A method for reducing wheat grain vomitoxin by wet ozone, the preparation method comprising the following steps:

[0038] (1) Determining the content of vomitoxin in wheat grains is 1340μg / kg. Weigh 50kg of wheat grains with excessive vomitoxin on an electronic scale, add 75kg of water, stir and soak for 1.5min, drain after soaking, and measure its moisture content 14.4%;

[0039] (2) Place the drained wheat grains in an ozone fumigator. The design diameter of the bottom circle of the fumigator is 2 meters, and the area of ​​the circle is 31,400 square centimeters. The ozone gas enters from the bottom of the fumigator through a small hole of 1 cm, and the wheat grains are placed on the three-layer screen on the upper part of the fumigator. Controlled at 3140 L / min, the control processing time is 40min.

[0040] (3) After detoxification, the wheat is placed in a boiling dryer, the temperature is controlled at 40°C, the air volume is 7000m / h, and it is treated for 15 mi...

Embodiment 3

[0042] A method for reducing wheat grain vomitoxin by wet ozone, the preparation method comprising the following steps:

[0043] (1) Determining the content of vomitoxin in wheat grains is 1340μg / kg. Weigh 500kg of wheat grains with excessive vomitoxin on an electronic scale, add 600kg of water, stir and soak for 1.2min, drain after soaking, and measure its water content The content is 14.4%;

[0044] (2) Place the drained wheat grains in an ozone fumigator. The design diameter of the bottom circle of the fumigator is 2 meters, and the area of ​​the circle is 31,400 square centimeters. The ozone gas enters from the bottom of the fumigator through a small hole of 1 cm, and the wheat grains are placed on the three-layer screen on the upper part of the fumigator. It is controlled at 3140 L / min, and the control processing time is 35 minutes.

[0045] (3) After detoxification, the wheat was placed in a boiling dryer with a controlled temperature of 40°C and an air volume of 6500m...

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Abstract

The invention relates to a method for reducing vomitoxin in wheat grain by wet ozone, which is characterized by comprising the following steps: 1, placing wheat grain in water according to the ratio of wheat grain to water being equal to 1:(1-1.5), soaking in a short time, draining after the soaking, and controlling the water content of the wheat grain to be 14%-14.5%; 2, processing the drained wheat grain with ozone immediately, wherein an ozone processor adopts a bed fumigation method, the ozone concentration is controlled at 100-120mg / L, the processing time is 30-40 min, and the vomitoxin content in the wheat grain can be reduced by 60% to 70% without affecting the physical and chemical properties of the wheat grain; and 3, placing the detoxified wheat in a boiling dryer, and reducing the water content of the wheat grain to 12% or lower than 12% by adopting a low-temperature hot air drying process. The vomitoxin content of the wheat treated with the method provided by the inventioncan be reduced by 60% to 70%, which complies with relevant standards that the limited index of vomitoxin of wheat flour in food is 1000 (mug / kg) specified in National Food Safety Standard for Mycotoxin Limits in Foods (GB 2761-2011), and the water content is 12% or less than 12%, therefore, the wheat grain can be stored for a long term, and the application range is very broad.

Description

technical field [0001] The invention relates to the field of food safety processing, in particular to a method for reducing wheat grain vomitoxin by wet ozone. Background technique [0002] For a long time, due to the increase in the frequency of gibberellin outbreaks in wheat, vomitoxin has become a major threat to wheat production and quality safety, especially to important winter wheat areas such as the Yangtze River Basin and the Huanghuai River Basin in China. The main component of vomitoxin is DON (deoxynivalenol, deoxynivalenol), which belongs to the trichothecene compound. Vomitotoxin is very stable in food processing. Baking temperature is 210°C, frying temperature is 140°C, or boiling, are difficult to remove. DON contamination is widely found in countries all over the world, and has been found in China, Japan, the United States, the former Soviet Union, and South Africa. DON mainly contaminates cereal crops such as wheat, barley, oats, and corn, and also contami...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L5/20A23B9/08
CPCA23B9/08A23V2002/00A23L5/27A23V2300/10A23V2250/128
Inventor 王家良赵大庆马龙王梅怀军先磊李成杰
Owner BENGBU COLLEGE
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