Study on the stability control strategy of Triphala solution based on the balance of physical stability and chemical stabilities

Publication date: 5 September 2018Source: Journal of Pharmaceutical and Biomedical Analysis, Volume 158Author(s): Hao-zhou Huang, Sheng-yu Zhao, Xiu-mei Ke, Jun-zhi Lin, Shu-sen Huang, Run-chun Xu, Hong-yan Ma, Yi Zhang, Li Han, Ding-kun ZhangAbstractTriphala is a well-known prescription in Indian Ayurveda and TCM medicine for its great effect on gingivitis and hyperlipidemia. However, its solution is unstable for the containing of excessive polyphenol, leading to the production of sediment in the short term and the decrease of efficacy. Based on the analysis of sediment formation, a novel control strategy is proposed. To conduct the analysis, the sediment formation was recorded for a consecutive five days. The changes in the composition of the supernatant and the sediment were studied by the HPLC profile analysis. The main components of the sediment were identified as corilagin, ellagic acid and gallic acid, and the amount of ellagic acid sediment increased with the storage time. Then, with a series of pH status adjustments of the Triphala solution, the physical and chemical stabilities were acquired by Turbiscan and HPLC respectively. The results showed that as the pH value increased, so did the physical stability, but the particle size and TSI of the association decreased. While the fingerprint of chemical profile similarity decreased, so did the chemical stability. Combining physical and chemical stability parameters, an equilibrium point was found out. When the pH value ...
Source: Journal of Pharmaceutical and Biomedical Analysis - Category: Drugs & Pharmacology Source Type: research