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| Effect of removing benzo(a)pyrene from peanut oil by adsorption |
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| DOI： |
| KeyWord:peanut oil benzo(a)pyrene adsorption activated carbon removal rate |
| FundProject: |
| Author Name | Affiliation | | SONG Furong1, XING Fuguo3, YANG Zenglong1, YU Xiaohua1 | 1.Qingdao Tianxiang Food Group Co. , Ltd. , Qingdao 266000, Shandong,China
2.Qingdao Shengwanxiang Inspection and Testing Technology Co. , Ltd. , Qingdao 266000, Shandong, China
3.Institute of Food Science and Technology,Chinese Academy of Agricultural Sciences, Beijing 100000, China |
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| Abstract: |
| In order to reduce the content of benzo(a)pyrene in peanut oil while taking into account the color of peanut oil, the adsorption and removal of benzo(a)pyrene from peanut oil was carried out by using activated carbon and activated clay composite adsorbent. The effect of type of activated carbon, dosage of composite adsorbent, ratio of composite adsorbent, adsorption temperature and adsorption time on the removal of benzo(a)pyrene from peanut oil was investigated. The adsorption process conditions were optimized using orthogonal experiment. The results showed that the combination of activated clay and FC1X activated carbon had the best effect on the removal of benzo(a)pyrene from peanut oil, and the optimal adsorption process conditions were determined as follows: dosage of composite adsorbent 2%, mass ratio of activated clay to FC1X activated carbon 20∶1,adsorption time 20 min and adsorption temperature 130℃. Under these conditions, the content of benzo(a)pyrene in peanut oil decreased to 0.12 μg/kg, far less than the EU limit 2 μg/kg, and the color was Y10,R0.7. The composite adsorbent can effectively adsorb more than 99% of benzo(a)pyrene in peanut oil, and the color of peanut oil is light yellow, clear and transparent, which meets the requirements of peanut oil production. |
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