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Removal process for aflatoxin and benzopyrene in peanut oil

A technology for aflatoxin and peanut oil, applied in the field of oil and fat, can solve the problems of poor removal of aflatoxin, inability to remove aflatoxin and benzopyrene, etc. easy-to-remove effect

Active Publication Date: 2017-08-04
SHANDONG YUHUANG GRAIN & OIL FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there have been methods of using decolorizing agents to remove aflatoxin and benzopyrene, and activated clay is more commonly used. For example, the adsorption method to remove benzopyrene in sesame oil and the decolorization effect research, Cereals, Oils and Food Science and Technology, 2013, It uses activated clay to remove benzopyrene, but the removal rate of benzopyrene is only about 30%. The combination of activated carbon and activated clay can achieve a removal rate of about 90%, but its removal Aflatoxin is less effective; both aflatoxin and benzopyrene cannot be efficiently removed simultaneously

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The removal technology of aflatoxin and benzopyrene in peanut oil, it comprises the steps:

[0024] Step 1) Preparation of adsorbent:

[0025] a) Add twice the weight of 10% hydrochloric acid solution to the diatomite, ultrasonically oscillate for 30 minutes, then add sodium dodecylsulfonate accounting for 1% by weight of diatomite, continue ultrasonically oscillating for 30 minutes, and then Collect the precipitate by centrifugation; the ultrasonic power is 2000w;

[0026] b) Put calcite, kaolinite and sepiolite into the pulverizer according to the mass ratio of 5:3:2 for pulverization, and then grind them into 100-mesh powder;

[0027] c) Put the precipitate obtained in a) and the powder obtained in b) into the mixer according to the mass ratio of 2:3, and stir at 500rpm for 10 minutes to obtain the base material, and then add polystyrene microspheres to the manufacturing base according to the mass ratio of 1:1. In the granulator, then add the polyvinyl alcohol aque...

Embodiment 2

[0032] The removal technology of aflatoxin and benzopyrene in peanut oil, it comprises the steps:

[0033] Step 1) Preparation of adsorbent:

[0034] a) Add twice the weight of 10% hydrochloric acid solution to the diatomite, ultrasonically oscillate for 30 minutes, then add sodium dodecylsulfonate accounting for 1% by weight of diatomite, continue ultrasonically oscillating for 30 minutes, and then Collect the precipitate by centrifugation; the ultrasonic power is 2000w;

[0035] b) Put calcite, kaolinite and sepiolite into the pulverizer according to the mass ratio of 5:3:2 for pulverization, and then grind them into 100-mesh powder;

[0036] c) Put the precipitate obtained in a) and the powder obtained in b) into the mixer according to the mass ratio of 2:3, and stir at 500rpm for 10 minutes to obtain the base material, and then add polystyrene microspheres to the manufacturing base according to the mass ratio of 1:1. In the granulator, then add the polyvinyl alcohol aque...

Embodiment 3

[0041] The performance test of adsorbent of the present invention to aflatoxin and benzopyrene:

[0042] Oil selection:

[0043] Two batches of peanut oil samples with different contents of aflatoxin and benzopyrene were selected for testing;

[0044] Sample 1: the content of aflatoxin B1 is 50 μg / L, and the content of benzopyrene is 20 μg / L;

[0045] Sample 2: the content of aflatoxin Bl is 100 μg / L, and the content of benzopyrene is 10 μg / L.

[0046] Sorbent selection:

[0047] The adsorbents are respectively activated clay, activated carbon, zeolite and the adsorbent in Example 1 of the present invention; the operation process is the same as in Example 1.

[0048] testing method:

[0049] After centrifugal separation to remove the precipitate, the content of aflatoxin B1 in the oil was tested by enzyme-linked immunosorbent assay; the content of benzopyrene in the oil was tested by liquid chromatography-tandem mass spectrometry. The test results of sample 1 are shown in...

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Abstract

The invention belongs to the technical field of grease and discloses a removal process for aflatoxin and benzopyrene in peanut oil. The process comprises the following steps: S1) preparing an adsorbent; S2) performing adsorption and centrifugalization; and S3) regenerating the adsorbent. The process disclosed by the invention can effectively remove aflatoxin and benzopyrene, is simple and feasible in operating step and suitable for being industrially popularized and used.

Description

technical field [0001] The invention belongs to the technical field of oils and fats, and in particular relates to a process for removing aflatoxin and benzopyrene from peanut oil. Background technique [0002] Aflatoxins are mainly a class of toxic secondary metabolites produced by Aspergillus flavus and Aspergillus parasiticus. So far, the aflatoxins that have been discovered include at least 17 compounds with similar structures and known characteristics, such as aflatoxin B1 and B2. It has strong mutagenic, teratogenic and carcinogenic effects. Among them, aflatoxin B1 is the most toxic, and its toxicity is 10 times that of potassium cyanide and 68 times that of arsenic. It is listed as a known poison by the World Health Organization. One of the strongest carcinogenic chemicals. Peanut is one of the most susceptible crops to be infected by Aspergillus flavus, and the main factor affecting the quality of peanut oil produced from peanuts is also aflatoxin. The state stri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/14C11B3/10
CPCB01J20/12B01J20/14C11B3/10
Inventor 张业尹世亭沈小刚朱礼国王依军
Owner SHANDONG YUHUANG GRAIN & OIL FOOD
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