Thermodynamic analysis of water adsorption and desorption process of Chinese herbal decoction pieces.

Author: Lin CHENG ¹ ; Xiao-Jian LUO ¹ ; Xiu-Lin HAN ¹ ; Wen-Kai WANG ¹ ; Xiao-Yong RAO ¹ ; Shao-Zhong XU ² ; Yan HE ¹
Author Information

1. Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China.
2. Jiangxi Provincial Hospital of Traditional Chinese Medicine, Nanchang 330006, China.
Publication Type:Journal Article
Keywords: Chinese herbal decoction pieces; adsorption and desorption; thermodynamic parameters
From: China Journal of Chinese Materia Medica 2016;41(18):3490-3495
CountryChina
Language:Chinese
Abstract: Based on the basic theory of thermodynamics, the thermodynamic parameters and related equations in the process of water adsorption and desorption of Chinese herbal decoction pieces were established, and their water absorption and desorption characteristics were analyzed. The physical significance of the thermodynamic parameters, such as differential adsorption enthalpy, differential adsorption entropy, integral adsorption enthalpy, integral adsorption entropy and the free energy of adsorption, were discussed in this paper to provide theoretical basis for the research on the water adsorption and desorption mechanism, optimum drying process parameters, storage conditions and packaging methods of Chinese herbal decoction pieces.