Yu Qiong, Cai Xiao-Shuang, Leveneur Sébastien, Wang Xue-de, Liu Hua-Min, Zhang Chen-Xia, Ma Yu-Xiang
College of Food Science and Engineering & Institute of Special Oilseed Processing and Technology, Henan University of Technology, Zhengzhou, China.
INSA Rouen, UNIROUEN, LSPC, UR4704, Normandie Université, Rouen, France.
Front Nutr. 2022 Aug 10;9:983843. doi: 10.3389/fnut.2022.983843. eCollection 2022.
In the present work, effects of reaction temperature, reactant concentration, catalyst loading, and rotation speed on the kinetics of sesamin conversion in a sesame oil system were studied by using citric acid loading on Hβ zeolite (CA/Hβ) as a catalyst. A kinetic model was built for sesamin conversion. The kinetic model fits correctly the experimental concentration of sesamin and asarinin ( = 0.93 and = 0.97). The sesamin conversion is an endothermic reaction (△ = 3 4.578/). The CA/Hβ catalyst could be easily regenerated by calcination, and there was no obvious loss of catalytic activity when reused. Knowledge of the sesamin conversion is of great significance for guiding production and improving the value and nutrition of sesame oil. In a word, this study lays the foundation for the scale-up of the production of asarinin from sesame oil using CA/Hβ as the catalyst.
在本工作中，以负载柠檬酸的Hβ沸石（CA/Hβ）为催化剂，研究了反应温度、反应物浓度、催化剂负载量和转速对芝麻油体系中芝麻素转化动力学的影响。建立了芝麻素转化的动力学模型。该动力学模型与芝麻素和芝麻林素的实验浓度拟合良好（R² = 0.93和R² = 0.97）。芝麻素转化是一个吸热反应（△H = 34.578kJ/mol）。CA/Hβ催化剂可通过煅烧轻松再生，重复使用时催化活性无明显损失。了解芝麻素转化对于指导生产以及提高芝麻油的价值和营养具有重要意义。总之，本研究为以CA/Hβ为催化剂从芝麻油中规模化生产芝麻林素奠定了基础。
