|
| Removal of aflatoxin B1 from peanut oil by montmorillonite |
| |
| DOI： |
| KeyWord:montmorillonite peanut oil adsorption aflatoxin |
| FundProject: |
| Author Name | Affiliation | | HU Yongjie3, LI Bing4 , GONG Ren4, QI Yutang1,2, ZHANG Weinong1,2 | 1.College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
2.Engineering Research Center of Lipid-based Fine Chemicals of Hubei Province，Wuhan 430023, China
3.Hubei Sanding Technology Co. , Ltd. ，Ezhou 436060, Hubei, China
4.China Grain Wuhan Scientific Research and Design Institute Co. , Ltd. ,Wuhan 430079,China |
|
| Hits: 1226 |
| Download times: 719 |
| Abstract: |
| To develop a safe and high-efficiency adsorbent for removal afloxins from edible oil, a calcium-based montmorillonite prepared by semi-dry method was used as a research object. The removal process of aflatoxin B1 (AFB1) from peanut oil by montmorillonite was optimized by single factor experiment and orthogonal experiment and the adsorption mechanism was studied by isothermal adsorption experiment. In addition, the effect of montmorillonite on the peanut oil quality was studied. The results showed that under the conditions of montmorillonite dosage 0.5%, adsorption temperature 110℃ and adsorption time 30 min, the removal rate of AFB1 was the highest, which was (95.15±0.01)%, and the content of AFB1 in peanut oil was (1.995±0.607) μg/kg, which could meet the national standard (GB 2761-2017). The adsorption process of AFB1 in peanut oil by montmorillonite could be well fitted with Freundlich equation, indicating the adsorption of AFB1 by montmorillonite was a complex process including physical multilayer adsorption and chemical monolayer adsorption. The montmorillonite had a strong adsorption affinity for AFB1 and the highest adsorbing capacity was up to 0.1 mg/g. The montmorillonite also could improve the color, and reduce the acid value and peroxide value of peanut oil. The retention rates of total sterols and total tocopherols were high. The montmorillonite is a safe and efficient AFB1 adsorbent, and can be used in oil processing. |
| View full text View/Add Comment Download reader |
| Close |
|
|
|
