Kinetic modeling of the sesamin conversion into asarinin in the presence of citric acid loading on Hβ

Author:

Yu Qiong,Cai Xiao-shuang,Leveneur Sébastien,Wang Xue-de,Liu Hua-min,Zhang Chen-xia,Ma Yu-xiang

Abstract

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 (RSesamin2 = 0.93 and RAsarinin2 = 0.97). The sesamin conversion is an endothermic reaction (△HrIso = 3 4.578kJ/mol). 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.

Funder

National Natural Science Foundation of China

Earmarked Fund for Modern Agro-industry Technology Research System

Publisher

Frontiers Media SA

Subject

Nutrition and Dietetics,Endocrinology, Diabetes and Metabolism,Food Science

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