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| Detoxification process optimization of peanut oil with composite adsorbent |
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| DOI： |
| KeyWord:peanut oil adsorbent compound BaP AFB1 |
| FundProject: |
| Author Name | Affiliation | | ZUO Zongming1, GAO Pan 1,2,3, YANG Yong3,4, DONG Zhiwen1,
ZHONG Wu1,2,3, HU Chuanrong1,2, HE Dongping1,2,3 | 1.College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023，China；
2.Key Laboratory for Deep Processing of Major Grain and Oil of Ministry of Education in China,
Wuhan 430023，China； 3.Key Laboratory of National Market Supervision Bureau(Edible
Oil Quality and Safety), Wuhan 430040，China； 4.Wuhan Institute for
Food and Cosmetic Control, Wuhan 430012，China |
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| Abstract: |
| In order to find a safe, efficient and low-cost adsorption detoxification process of peanut oil,taking deacidified peanut oil as the research object, by comparing the influence of four kinds of adsorbents, namely activated carbon, activated clay, attapulgite and bentonite, on the removal rate of benzo (a)pyrene (BaP) and aflatoxin B1（AFB1） in peanut oil, two adsorbents were selected and compounded，and used in peanut oil detoxification.With oil absorption rate, filtration rate, BaP content, AFB1 content and cost as indexes,single factor experiment and orthogonal experiment were used to optimize the detoxification process conditions with composite adsorbent. The results showed that the combination of activated carbon and bentonite had a good detoxification effect. The optimal detoxification process conditions with composite adsorbent were as follows: mass ratio of activated carbon to bentonite 1∶ 5, adsorbents addition 2.0% of deacidified peanut oil mass, reaction time 20 min, and reaction temperature 90 ℃. Under these conditions, the oil absorption rate of the composite adsorbent was 39.47%, the filtration rate was 2.08 mL/min, and the BaP content decreased from 32.11 μg/kg to 0.15 μg/kg, AFB1 content decreased from 19.45 μg/kg to 0.12 μg/kg, the adsorbent cost was as low as 4.41 yuan/t. The process optimized can meet the industrial production of peanut oil with low-risk, low-cost and high efficiency goals. |
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