[Isothermal adsorption, desorptionand thermodynamic properties of Scutellaria baicalensis pieces].

Autor:	Zheng LJ; Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China., He Y; Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China., Zhang JH; Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China., Wang WK; Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China., Li X; Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China.; National Engineering Research Center for Traditional Chinese Medicine Solid Preparation Manufacturing Technology, Nanchang 330006, China., Rao XY; Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China.; National Engineering Research Center for Traditional Chinese Medicine Solid Preparation Manufacturing Technology, Nanchang 330006, China., Wang F; Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China., Luo XJ; Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China.; National Engineering Research Center for Traditional Chinese Medicine Solid Preparation Manufacturing Technology, Nanchang 330006, China.
Jazyk:	čínština
Zdroj:	Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica [Zhongguo Zhong Yao Za Zhi] 2016 Mar; Vol. 41 (5), pp. 830-837.
DOI:	10.4268/cjcmm20160512
Abstrakt:	To study the characteristics of adsorption and desorption of Scutellaria baicalensis pieces. On the basic thermodynamic theory, thestatic method was adopted to obtain S. baicalensis pieces' isothermal adsorption and desorption data at 25, 35, 45 ℃, with the water activity between 0.10 and 0.85. Eight moisture models were selected to fit the data and then evaluated to determine the thermodynamic properties of S. baicalensis pieces. The results show that, among the eight adsorption models, Peleg fit the best, in which absolutely-safe and the relatively-safe moisture contents of S. baicalensis pieces were around 9.22% and 13.51% respectively; the net equivalent heat adsorption and desorption and the differential entropy of S. baicalensis pieces were closely related to moisture content, and decrease within crease of water content; when drying the pieces, 12.0% of moisture content can be taken as the drying end; both of adsorption and desorption processes were driven by enthalpy and non-spontaneous. The study on S. baicalensis pieces' isothermal adsorption and desorption rules can help advance studies on adsorption and desorption rules of Chinese herbal pieces, and play a good guiding role in optimizing storage conditions and drying process of Chinese herbal pieces. Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose. (Copyright© by the Chinese Pharmaceutical Association.)
Databáze:	MEDLINE
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