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Adsorbent for removing pigment, aflatoxin and metal ions from corn oil

A technology of aflatoxin and metal ions, which is applied in the direction of edible oil/fat, application, fat oil/fat refining, etc., can solve the problems of easy mildew and increased risk of aflatoxin pollution, and achieve easy removal , Large particle size, the effect of avoiding waste of raw materials

Inactive Publication Date: 2017-06-30
SHANDONG YUHUANG GRAIN & OIL FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corn germ is rich in nutrients and high in water content. There is no relevant national standard, and it is prone to mildew during storage and transportation, which increases the risk of aflatoxin contamination.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An adsorbent for removing pigment, aflatoxin and metal ions in corn oil, which is prepared according to the following process:

[0023] Step 1) Diatomite modification: Add 2 times the weight of 10% hydrochloric acid solution to diatomite, ultrasonically oscillate for 30 minutes, and then add sodium dodecylsulfonate accounting for 2% by weight of diatomite, Continue ultrasonic oscillation for 30 minutes, then centrifuge to collect the precipitate; the ultrasonic power is 1500w;

[0024] Step 2) Pulverization and grinding: put kaolinite and sepiolite into the pulverizer according to the mass ratio of 3:2 for pulverization, and then pulverize them into 100-mesh powder;

[0025] Step 3) Granulation: Put the precipitate obtained in step 1) and the powder obtained in step 2) into the mixer according to the mass ratio of 2:5, stir at 500 rpm for 10 minutes to obtain the mixed material, and then mix it with polystyrene microspheres according to the ratio of 1:1 The mass ratio ...

Embodiment 2

[0029] An adsorbent for removing pigment, aflatoxin and metal ions in corn oil, which is prepared according to the following process:

[0030] Step 1) Diatomite modification: add 3 times the weight of hydrochloric acid solution with a mass fraction of 10% to diatomite, ultrasonically oscillate for 30 minutes, and then add sodium dodecylsulfonate accounting for 1% by weight of diatomite, Continue ultrasonic oscillation for 30 minutes, then centrifuge to collect the precipitate; the ultrasonic power is 2000w;

[0031] Step 2) Pulverization and grinding: put kaolinite and sepiolite into the pulverizer according to the mass ratio of 3:2 for pulverization, and then pulverize them into 100-mesh powder;

[0032] Step 3) Granulation: Put the precipitate obtained in step 1) and the powder obtained in step 2) into the mixer at a mass ratio of 3:7, stir at 500 rpm for 10 minutes to obtain a mixed material, and then mix it with polystyrene microspheres at a ratio of 1:1 The mass ratio is...

Embodiment 3

[0036] The performance test of adsorbent of the present invention:

[0037] Sorbent selection: select activated clay and activated carbon as the control group; use the adsorbent prepared in Example 1 as the experimental group.

[0038] Experimental process: put the oil products of the same quality of the same batch of corn oil products into 4 beakers respectively, heat them to 80°C in a constant temperature magnetic stirrer, add activated clay, activated carbon and the present invention respectively accounting for 2% of the oil quality. The adsorbent of embodiment 1 is then continued to detoxify for 60min, and the oil product and adsorbent are centrifuged after the detoxification is completed.

[0039] standard:

[0040](1) Determination of color: according to the method of GB / T 22460-2208;

[0041] (2) Determination of iron content: according to the method of GB / T 5009.90-2003;

[0042] (3) Determination of copper content: according to GB / T 5009.13-2003 method;

[0043] (...

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PUM

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Abstract

The invention belongs to the technical field of oil adsorbent, and discloses an adsorbent for removing pigment, aflatoxin and metal ions in corn oil, which is prepared according to the following process: step 1) diatomite modification, step 2) Crushing and grinding, step 3) granulation, step 4) sintering, step 5) amino acid modification. The inventive adsorbent can effectively adsorb pigment, aflatoxin and metal ions.

Description

technical field [0001] The invention belongs to the technical field of grease adsorbents, in particular to an adsorbent used for removing pigments, aflatoxins and metal ions in corn oil. Background technique [0002] Corn oil is an edible vegetable oil with high nutritional value rich in physiologically active ingredients. Corn oil contains about 86% unsaturated fatty acids, 56% of which are linoleic acid, which has the effect of lowering lipids, and is beneficial to improve the health of cardiovascular and cerebrovascular patients; corn oil is rich in vitamin E and tocotrienol , of which the content of vitamin E is 0.16-0.27%, which is higher than other vegetable oils. It is a natural antioxidant and has certain effects on human body anti-oxidation and anti-aging; corn oil is also rich in phytosterols, and the content of phytosterols reaches 1.5%. The above has the effect of lowering low-density cholesterol and assisting in lowering blood fat. Now that the corn oil indust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/30B01J20/14B01J20/32C11B3/10A23D9/04
CPCB01J20/14A23D9/04B01J20/12B01J20/3214B01J20/3225B01J2220/4806B01J2220/4812C11B3/10
Inventor 张年峰张业荣相栋沈小刚张新岭
Owner SHANDONG YUHUANG GRAIN & OIL FOOD
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