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Peanut shell-based biochar material for adsorbing aflatoxin as well as preparation method and application of peanut shell-based biochar material

A kind of technology of aflatoxin and peanut shell, which is applied in the direction of chemical instruments and methods, fat production, and other chemical processes, can solve the problems that the safety of aflatoxin needs to be further studied, and achieve the effect of rich pores and large specific surface area

Pending Publication Date: 2022-07-22
SHANDONG PEANUT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the quaternary ammonium salts of organic modifiers of montmorillonite are not food additives, and the safety of removing aflatoxin from edible oil needs further study

Method used

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  • Peanut shell-based biochar material for adsorbing aflatoxin as well as preparation method and application of peanut shell-based biochar material
  • Peanut shell-based biochar material for adsorbing aflatoxin as well as preparation method and application of peanut shell-based biochar material
  • Peanut shell-based biochar material for adsorbing aflatoxin as well as preparation method and application of peanut shell-based biochar material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A peanut shell-based biochar material for absorbing aflatoxin, the preparation method is as follows:

[0050] (1) Rinse the peanut shells with tap water 2-3 times to remove impurities and ash, then dry, pulverize, sieve, bag, and store in a desiccator in a 110°C oven for later use.

[0051] (2) Weigh 10g of crushed peanut shells in a crucible, add 2g of K 2 CO 3 (peanut shell and K 2 CO 3 The mass ratio of 5:1), add water, stir evenly, and dry in an oven at 110 °C.

[0052] (3) with the peanut shell after above-mentioned drying and K 2 CO 3 The mixture was placed in a high-temperature muffle furnace, carbonized at 340 °C for 1.5 h, and then heated to 700 °C for activation for 1.5 h.

[0053] (4) The sample after the reaction is taken out from the muffle furnace, washed with deionized water for cooling to pH 7-8, dried at 110° C., and cooled to obtain peanut shell-based biochar material for adsorbing aflatoxin .

Embodiment 2

[0055] A peanut shell-based biochar material for absorbing aflatoxin, the preparation method is as follows:

[0056] (1) Rinse the peanut shells with tap water 2-3 times to remove impurities and ash, then dry, pulverize, sieve, bag, and store in a desiccator in a 110°C oven for later use.

[0057] (2) Weigh 10g of crushed peanut shells in a crucible, add 4g of K 2 CO 3 (peanut shell and K 2 CO 3 The mass ratio of 5:2), add water, stir evenly, and dry in an oven at 110 °C.

[0058] (3) with the peanut shell after above-mentioned drying and K 2 CO 3 The mixture was placed in a high-temperature muffle furnace, carbonized at 340 °C for 1.5 h, and then heated to 700 °C for activation for 1.5 h.

[0059] (4) The sample after the reaction is taken out from the muffle furnace, washed with deionized water for cooling to pH 7-8, dried at 110° C., and cooled to obtain peanut shell-based biochar material for adsorbing aflatoxin .

Embodiment 3

[0061] A peanut shell-based biochar material for absorbing aflatoxin, the preparation method is as follows:

[0062] (1) Rinse the peanut shells with tap water 2-3 times to remove impurities and ash, then dry, pulverize, sieve, bag, and store in a desiccator in a 110°C oven for later use.

[0063] (2) Weigh 10g of crushed peanut shells in a crucible, add 6g of K 2 CO 3 (peanut shell and K 2 CO 3 The mass ratio of 5:3), add water, stir evenly, and dry in an oven at 110 °C.

[0064] (3) with the peanut shell after above-mentioned drying and K 2 CO 3 The mixture was placed in a high-temperature muffle furnace, carbonized at 340 °C for 1.5 h, and then heated to 700 °C for activation for 1.5 h.

[0065] (4) The sample after the reaction is taken out from the muffle furnace, washed with deionized water for cooling to pH 7-8, dried at 110° C., and cooled to obtain peanut shell-based biochar material for adsorbing aflatoxin .

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Abstract

The invention discloses a peanut shell-based biochar material for adsorbing aflatoxin as well as a preparation method and application of the peanut shell-based biochar material, and belongs to the technical field of aflatoxin adsorption materials. According to the invention, the peanut shell is used as a raw material, K2CO3 is used as an active agent, the peanut shell-based biochar material is prepared by a one-step method, and the prepared peanut shell-based biochar material has the characteristic of large specific surface area by controlling the carbonization temperature, the carbonization time, the activation temperature, the activation time and the mass ratio of the peanut shell to the K2CO3, is rich in pores, and can be used for preparing the biochar material. The aflatoxin adsorbent is a potential aflatoxin adsorbent. When being used as an adsorbent for adsorbing aflatoxin in peanut oil, the peanut shell-based biochar material prepared by the method has the characteristics of low usage amount and high adsorption capacity.

Description

technical field [0001] The invention belongs to the technical field of aflatoxin adsorption materials, and in particular relates to a peanut shell-based biochar material for adsorbing aflatoxin, a preparation method and application thereof. Background technique [0002] Aflatoxins are a class of carcinogenic mycotoxins produced by Aspergillus flavus and a. parasiticus. So far, more than 20 kinds of aflatoxins have been detected, among which aflatoxin B1 (aflatoxin B1) is the most toxic and is one of the main factors that induce liver cancer. The oil crops frequently polluted by Aspergillus flavus include peanuts and corn. Using peanuts and corn contaminated with aflatoxin as raw materials to prepare edible oil can easily lead to excessive aflatoxins in peanut oil and corn germ oil. According to my country's GB 2761-2017 "National Food Safety Standard Limits of Mycotoxins in Foods", the content of aflatoxin B1 in peanut oil and corn oil shall not exceed 20 μg / kg, and the co...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30C11B3/10
CPCB01J20/20B01J20/28057C11B3/10B01J2220/4825
Inventor 张建成张初署王冕唐月异杨珍于强朱立飞刘霄悦于小华
Owner SHANDONG PEANUT RES INST