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Method for degrading aflatoxin in peanut kernels

A kind of aflatoxin, peanut technology, applied in application, food preparation, food science, etc., can solve the problems of product damage, insecurity, etc.

Active Publication Date: 2010-01-27
青岛天祥食品集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, investigations have found that most chemical treatments are impractical (must be carried out under extreme temperature and pressure conditions), unsafe (formation of toxic residues) and damage the nutritional, sensory and functional properties of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Soak peanut kernels polluted by aflatoxin (aflatoxin content 175 μg / kg) in an edible alcohol solution, the concentration of the edible alcohol solution is 75%, and the weight ratio of the peanut kernels to the alcohol solution is 1 / 1. Mix and soak for 20 minutes, stirring constantly during soaking. After soaking, use a 5 mm diameter sieve to drain the alcohol solution from the peanut kernels, put the peanut kernels after draining the alcohol solution into a rotary evaporator, and place them under the conditions of an evaporation temperature of 45°C and a vacuum of 0.01Mpa. The peanut kernels are evaporated until no alcohol solution is evaporated.

[0012] Aflatoxin detection

[0013] The evaporated peanut kernels were tested for aflatoxin content using the method disclosed in the national invention patent ZL200510018555.X. The test results showed that the aflatoxin content dropped to 1.8 μg / kg.

Embodiment 2

[0015] Soak peanut kernels polluted by aflatoxin (aflatoxin content 175 μg / kg) in edible alcohol solution, the concentration of edible alcohol solution is 80%, and the solid-liquid ratio of peanut kernels and alcohol solution is 1 / 4. Mixing and soaking time is 35 minutes, stirring constantly during soaking. After soaking, use a sieve with a diameter of 7 mm to drain the alcohol solution from the peanut kernels, put the peanut kernels after the alcohol solution into a rotary evaporator, and place them under the conditions of an evaporation temperature of 60°C and a vacuum of 0.015Mpa. The peanut kernels are evaporated until no alcohol solution is evaporated.

[0016] Aflatoxin detection

[0017] The evaporated peanut kernels were tested for aflatoxin content using the method disclosed in the national invention patent ZL200510018555.X. The test results showed that the aflatoxin content dropped to 1.5 μg / kg.

Embodiment 3

[0019] Soak peanut kernels polluted by aflatoxin (aflatoxin content 175 μg / kg) in an edible alcohol solution, the concentration of the edible alcohol solution is 85%, and the weight ratio of the peanut kernels to the alcohol solution is 1 / 2. Mix and soak for 30 minutes, stirring constantly during soaking. After soaking, use a 5 mm diameter sieve to drain the alcohol solution from the peanut kernels, put the peanut kernels after draining the alcohol solution into a rotary evaporator, and place them under the conditions of an evaporation temperature of 50°C and a vacuum of 0.005Mpa. The peanut kernels are evaporated until no alcohol solution is evaporated.

[0020] Aflatoxin detection

[0021] The evaporated peanut kernels were tested for aflatoxin content using the method disclosed in the national invention patent ZL200510018555.X. The test results showed that the aflatoxin content in Huangsheng dropped to 1.2 μg / kg.

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Abstract

The invention discloses a method for degrading aflatoxin in peanut kernels, which comprises the following steps: enabling alcoholic solution to full contact with peanut kernels; separating the peanut kernels from the alcoholic solution; and drying the peanut kernels separated from the alcoholic solution in vacuum. When the method is used, the degradation rate of the aflatoxin in the peanut kernels by the alcoholic solution can reach above 98.5%. The method has the advantages of simple and easy operation, high degradation efficiency and low degradation cost, and can not cause residuals of noxious solvents. The method is novel, practical and reliable, and is suitable for industrialized application.

Description

technical field [0001] The invention relates to a method for degrading aflatoxin in peanut kernels, belonging to the field of peanut food processing. Background technique [0002] Aflatoxins (Aflatoxins, AFT) are a class of toxic substances with strong carcinogenicity and strong immunosuppressive properties. Almost every fruit grain or fruit grain product may grow aflatoxin under a certain temperature and humidity. . The most important carrier of aflatoxin is peanut and a series of other nut kernels, as well as corn, rice, soybean, and grain products. The main source of human exposure to aflatoxins is contaminated fruit kernels, and there are two routes of dietary intake: by aflatoxins (mainly B 1 ) contaminated vegetable fruit grains; aflatoxin (mainly M 1 ). Aflatoxin is a kind of secondary metabolites produced by Aspergillus flavus and Aspergillus parasitica, etc. It is highly toxic to humans, livestock, poultry and animals. Its toxicity is 10 times that of potassium ...

Claims

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Application Information

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IPC IPC(8): A23L1/015A23L5/20
Inventor 杨庆利禹山林朱凤于丽娜毕洁张初署
Owner 青岛天祥食品集团有限公司
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