Mat Nor, Mohd. Shukri and A. Manan, Zainuddin and Mustaffa, Azizul Azri and Lee, Suan Chua (2015) An evaluation of thermodynamic models for the prediction of solubility of phytochemicals from orthosiphon staminues in ethanol. Computer Aided Chemical Engineering, 37 . pp. 2087-2092. ISSN 1570-7946
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Official URL: http://dx.doi.org/10.1016/B978-0-444-63576-1.50042...
Abstract
Orthosiphon Staminues (OS) is a species of herbs locally known in Malaysia as Misai Kucing. This study aims to analyse the performance of existing group contribution models in predicting the solubilities of phytochemical compounds from OS in ethanol. The compounds are oleanolic acid, ursolic acid and betulinic acid which have properties of pharmaceutical importance. The solubility experimental data of the compounds in ethanol were derived from the literature and were compared with the predictions made by the original UNIFAC, Modified UNIFAC (Dortmund), and Pharma Modified UNIFAC. The very high ranges of ARD values of between 40.86% to 98.6% calculated in this work shows that the models presented in this paper are not able to accurately predict the solubility of the studied phytochemical compounds in ethanol.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | activity coefficient, orthosiphon staminues, pharma modified UNIFAC |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical and Energy Engineering |
| ID Code: | 57754 |
| Deposited By: | Haliza Zainal |
| Deposited On: | 04 Dec 2016 04:07 |
| Last Modified: | 21 Apr 2022 01:17 |
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