| 卢彩彩1，孙小美1，李新2，申万岭2，刘华敏3，汪学德3.无溶剂体系中酸催化芝麻素转化为
细辛素及其动力学研究[J].中国油脂,2026,52(2):.[LU Caicai1, SUN Xiaomei1, LI Xin2, SHEN Wanling2,
LIU Huamin3, WANG Xuede3.Acid-catalysed conversion of sesamin to asarinin in a solvent-free system and its kinetics[J].China Oils and Fats,2026,52(2):.] |
| 无溶剂体系中酸催化芝麻素转化为
细辛素及其动力学研究 |
| Acid-catalysed conversion of sesamin to asarinin in a solvent-free system and its kinetics |
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投稿时间：2024-10-14 修订日期：2025-07-21 录用日期：2024-11-26
出版日期：2026-02-20
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| DOI：10.19902/j.cnki.zgyz.1003-7969.240596 |
| 中文关键词: 芝麻素 细辛素 磷钨酸 活化能 催化反应 |
| 英文关键词:sesamin asarinin phosphotungstic acid activation energy catalytic reaction |
| 基金项目: |
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| Author Name | Affiliation | | LU Caicai1, SUN Xiaomei1, LI Xin2, SHEN Wanling2,
LIU Huamin3, WANG Xuede3 | 1.COFCO ET(Xi′an) International Engineering Co. , Ltd. , Xi′an 710082, China
2.College of Chemistry and
Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
3.College of Food
Science and Engineering, Henan University of Technology, Zhengzhou 450001, China |
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| 中文摘要: |
| 旨在为低成本、绿色、大规模制备细辛素提供技术支持，以磷钨酸为催化剂，在无溶剂体系中催化芝麻素转化为细辛素，研究了研磨、烘箱加热和微波加热对芝麻素转化为细辛素的影响，并计算了芝麻素异构化反应的相关动力学参数。结果表明：在研磨作用下，芝麻素在室温（26 ℃）下即可转化为细辛素，但反应很慢，芝麻素与磷钨酸在物质的量比1∶ 2下研磨30 min时，细辛素收率仅有19.91%；在110 ℃烘箱加热30 min时，细辛素收率达到50.02%，但温度超过110 ℃可能会产生副产物；在微波功率540 W下加热7 min反应即可达到平衡，细辛素收率约为50%；90、100 ℃和110 ℃下芝麻素异构化反应的正反应速率常数分别为0.000 4、0.008 2 min-1和0.056 4 min-1，反应活化能为（292.99±4.25）kJ/mol。综上，在无溶剂体系下，研磨处理可显著降低芝麻素转化为细辛素的反应温度，烘箱加热和微波加热可显著缩短反应时间，是一种高效、绿色的细辛素制备方法。 |
| 英文摘要: |
| Aiming to provide technical support for the low-cost, green and large-scale preparation of asarinin, the conversion of sesamin to asarinin was catalysed in a solvent-free system using phosphotungstic acid as a catalyst. The effects of grinding, oven heating and microwave heating on the conversion of sesamin to asarinin were investigated, and the relevant kinetic parameters of the sesamin isomerization reaction were calculated. The results showed that under grinding conditions, sesamin could be converted into asarinin at room temperature (26 ℃), but the reaction was very slow. When sesamin and phosphotungstic acid were ground at a molar ratio of 1∶ 2 for 30 min, the yield of asarinin was only 19.91%. When heated at 110 ℃ in oven for 30 min, the yield of asarinin reached 50.02%, but temperatures exceeding 110 ℃ may produce by-products. Under microwave power of 540 W, reaction equilibrium was reached after 7 min of heating, with a yield of asarinin of approximately 50%. The positive reaction rate constant of sesamin isomerization reaction under 90 , 100 ℃ and 110 ℃ were 0.000 4, 0.008 2 min-1 and 0.056 4 min-1, respectively, and the activation energy of the reaction was （292.99±4.25）kJ/mol. In conclusion, under the solvent-free system, the grinding treatment can significantly reduce the reaction temperature of the conversion of sesamin into asarinin, and the oven heating and microwave heating can significantly shorten the reaction time, which is an efficient and green method for the preparation of asarinin. |
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