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Preparation method of adsorbent for removing aflatoxin in peanut oil

A kind of aflatoxin and adsorbent technology, applied in the field of adsorbent preparation, can solve the problems of peanut oil human health hazards, scattered peanut oil processing points, and failure to meet market demand, and achieve the effects of reducing production costs, enhancing activity, and preventing pollution

Inactive Publication Date: 2018-11-30
广西南宁荣威德新能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Peanut oil has developed rapidly in recent years. The supply of peanut raw materials for oil extraction is insufficient, and high-quality raw materials for peanut oil cannot meet market demand. At the same time, due to the large number of small and medium-sized enterprises and small rural workshops, peanut oil processing points are scattered and large-scale. Relatively small, economic strength is relatively weak, coupled with the growth characteristics of peanut oil, it is easy to make peanut oil contain aflatoxin and other harmful substances, making peanut oil harmful to human health

Method used

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  • Preparation method of adsorbent for removing aflatoxin in peanut oil
  • Preparation method of adsorbent for removing aflatoxin in peanut oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Preparation of activated carbon: Take 26 parts of longan branches, 28 parts of lychee branches, and 25 parts of bagasse, dry them at 120°C, and then pulverize them to obtain mixed powder A. Add 25 parts of rice husk powder to obtain mixed powder B, then impregnate mixed powder B with 14 parts of [bmim]OH alkaline ionic liquid for 36 hours, put mixed powder B impregnated in alkaline ionic liquid into a drying oven at 105 ° C After drying, put it in a muffle furnace for carbonization treatment. Before carbonization, nitrogen gas is introduced as a protective gas. The carbonization temperature is set at 500 ° C, and the carbonization time is 55 minutes. Activated carbon is obtained after drying;

[0020] Preparation of aminated activated carbon: Take the activated carbon prepared in step 1), add 42 parts of 9mol / L nitric acid solution, stir at 66°C for 9 hours, then filter with suction, wash with distilled water until neutral, dry at 105°C, and then add excess The thionyl...

Embodiment 2

[0023] Preparation of activated carbon: Take 28 parts of longan branches, 26 parts of lychee branches, and 24 parts of bagasse, dry them at 105°C, and then pulverize them to obtain mixed powder A. Add 20 parts of rice husk powder to obtain mixed powder B, then impregnate mixed powder B with 15 parts of [bmim][OAc] alkaline ionic liquid for 30 h, put mixed powder B impregnated in alkaline ionic liquid in a drying oven at 120 After drying at ℃, place it in a muffle furnace for carbonization treatment. Before carbonization, nitrogen gas is introduced as a protective gas. The carbonization temperature is set at 520°C, and the carbonization time is 60 minutes. After carbonization, the initial activated carbon product obtained is pickled and rinsed. , to obtain activated carbon after drying;

[0024] Preparation of aminated activated carbon: Take the activated carbon prepared in step 1), add 48 parts of 9mol / L nitric acid solution, stir at 70°C for 8.5h, then filter with suction, wa...

Embodiment 3

[0027] Preparation of activated carbon: take 25 parts of longan branches, 29 parts of lychee branches, and 20 parts of bagasse, dry them at 115°C, and then pulverize them to obtain mixed powder A. Add 22 parts of rice husk powder to obtain mixed powder B, then impregnate mixed powder B with 13 parts of [PemIm]Mes alkaline ionic liquid for 33h, put mixed powder B impregnated in alkaline ionic liquid into a drying oven and bake at 110°C After drying, put it in a muffle furnace for carbonization treatment. Before carbonization, nitrogen gas is introduced as a protective gas. The carbonization temperature is set at 600 ° C, and the carbonization time is 58 minutes. Activated carbon is obtained after drying;

[0028] Preparation of aminated activated carbon: Take the activated carbon prepared in step 1), add 40 parts of 9mol / L nitric acid solution, stir at 68°C for 10 hours, then filter with suction, wash with distilled water until neutral, dry at 115°C, and then add excess The th...

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Abstract

The invention belongs to the technical field of quality safety of cereal oil and in particular relates to a preparation method of an adsorbent for removing aflatoxin in peanut oil. The preparation method of the adsorbent comprises the following steps: firstly, taking longan branches, lychee branches and bagasse as raw materials; after mixing and crushing, adding rice shell powder and alkaline ionic liquid to prepare activated carbon; then carrying out amination treatment on the activated carbon; finally, compounding he activated carbon subjected to the amination treatment and chitosan to prepare the compound adsorbent. The adsorbent prepared by the method provided by the invention has the advantages of rapid adsorption speed and strong adsorption performance and can be used for effectivelyremoving harmful substances including the aflatoxin in the peanut oil and the like; the safety performance of the peanut oil is greatly improved; meanwhile, nutrient substances in the peanut oil canbe kept relatively well.

Description

technical field [0001] The invention belongs to the technical field of grain and oil quality safety, and in particular relates to a preparation method of an adsorbent for removing aflatoxin in peanut oil. Background technique [0002] Peanut oil is a popular vegetable oil, rich in fat and protein. Peanut oil contains more than 80% unsaturated fatty acids, including 41.2% oleic acid, 37.6% linoleic acid, and 19.9% ​​saturated fatty acids such as palmitic acid, stearic acid, and arachidic acid. The fatty acid composition of peanut oil is better, and it is a kind of edible oil that is easier to digest. Peanut oil can be divided into primary oil and secondary oil according to national standards, and can be divided into pressing and leaching according to the process. There are different types of peanut oil sold in the market, such as Luzhou-flavored, ordinary, and Luzhou-flavored. Peanut oil has developed rapidly in recent years. The supply of peanut raw materials for oil extra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C11B3/10
CPCB01J20/20B01J20/24C11B3/10
Inventor 覃央央
Owner 广西南宁荣威德新能源科技有限公司
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