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Removal Technology of Aflatoxin and Benzopyrene from Peanut Oil

A technology of aflatoxin and peanut oil, which is applied in the field of oil, can solve the problems of poor removal of aflatoxin and inability to remove aflatoxin and benzopyrene, so as to eliminate potential safety hazards, good removal effect, The effect of improving hydrophobicity

Active Publication Date: 2019-12-03
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 process for removing aflatoxin and benzopyrene in peanut oil includes the following steps:

[0024] Step 1) Prepare adsorbent:

[0025] a) Add twice the weight of 10% hydrochloric acid solution to the diatomaceous earth, ultrasonically shake for 30 minutes, add 1% by weight of diatomaceous earth sodium dodecyl sulfonate, and continue ultrasonic vibration for 30 minutes, then Centrifugation to collect sediment; ultrasonic power is 2000w;

[0026] b) Put calcite, kaolinite and sepiolite into a crusher according to the mass ratio of 5:3:2, 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, stir at 500 rpm for 10 minutes to obtain the base material, and then add the polystyrene microspheres to the production at a mass ratio of 1:1 In the granulator, then add a polyvinyl alcohol aqueous solution with a concentration of 8wt% accounting for 30% of the mass of the...

Embodiment 2

[0032] The process for removing aflatoxin and benzopyrene in peanut oil includes the following steps:

[0033] Step 1) Prepare adsorbent:

[0034] a) Add twice the weight of 10% hydrochloric acid solution to the diatomaceous earth, ultrasonically shake for 30 minutes, add 1% by weight of diatomaceous earth sodium dodecyl sulfonate, and continue ultrasonic vibration for 30 minutes, then Centrifugation to collect sediment; ultrasonic power is 2000w;

[0035] b) Put calcite, kaolinite and sepiolite into a crusher according to the mass ratio of 5:3:2, 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, stir at 500 rpm for 10 minutes to obtain the base material, and then add the polystyrene microspheres to the production at a mass ratio of 1:1 In the granulator, then add a polyvinyl alcohol aqueous solution with a concentration of 8wt% accounting for 30% of the mass of the...

Embodiment 3

[0041] The performance test of the adsorbent of the invention on 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 Bl is 50μg / L, and the content of benzopyrene is 20μg / L;

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

[0046] Adsorbent selection:

[0047] The adsorbents were selected from activated clay, activated carbon, zeolite, and the adsorbent of Example 1 of the present invention; the operation process was the same as that of Example 1.

[0048] testing method:

[0049] After centrifugal separation to remove the precipitate, enzyme-linked immunoassay was used to test the content of aflatoxin Bl in the oil; liquid chromatography-tandem mass spectrometry was used to test the content of benzopyrene in the oil. The test results of sample one are shown in Table 1, ...

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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 specifically relates to a process for removing aflatoxin and benzopyrene in 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 aflatoxins B1 and B2. It has strong mutagenic, teratogenic and carcinogenic effects. Among them, aflatoxin B1 is the most toxic. Its toxicity is 10 times that of potassium cyanide and 68 times that of arsenic. It is listed as a known by the World Health Organization One of the strongest carcinogenic chemicals. Peanuts are one of the crops most susceptible to infection by Aspergillus flavus. The main factor affecting the quality of peanut oil produced from peanuts is also aflatoxin. The state has extremely strict contro...

Claims

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Application Information

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Patent Type & Authority Patents(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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