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| 蒙脱土脱除花生油中黄曲霉毒素B1的研究 |
| Removal of aflatoxin B1 from peanut oil by montmorillonite |
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| DOI： |
| 中文关键词: 蒙脱土 花生油 吸附 黄曲霉毒素B1 |
| 英文关键词:montmorillonite peanut oil adsorption aflatoxin |
| 基金项目: |
| 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 |
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| 中文摘要: |
| 为了开发适用于食用油的安全、高效黄曲霉毒素吸附剂，以一种半干法制备的钙基蒙脱土为研究对象，采用单因素实验和正交实验优化了蒙脱土脱除花生油中黄曲霉毒素B1的工艺,利用等温吸附实验研究了其吸附机制，并考察蒙脱土吸附对花生油品质的影响。结果表明：在蒙脱土添加量0.5%、吸附温度110℃、吸附时间30 min的条件下，黄曲霉毒素B1的脱除率最高，为（95.15±0.01）%，花生油中黄曲霉毒素B1的含量降低至（1.995±0.607） μg/kg，符合国家标准（GB 2761—2017）要求；蒙脱土吸附花生油中黄曲霉毒素B1符合Ferundlich模型，表明该吸附是物理多层吸附和化学单层吸附的复杂过程；蒙脱土对黄曲霉毒素B1的吸附亲和力强，最大吸附量可达0.1 mg/g；该蒙脱土还可改善花生油的色泽，降低花生油的酸值和过氧化值，且总生育酚和总甾醇保留率较高。该蒙脱土是一种安全、高效的黄曲霉毒素B1吸附剂，可用于油脂加工中。 |
| 英文摘要: |
| 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. |
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