Effect of chemical structure on the solubility of antioxidants in supercritical carbon dioxide: experimental data and correlation

被引：65
作者：
Cortesi, A
Kikic, I
Alessi, P
Turtoi, G
Garnier, S
机构：
[1] Univ Trieste, Chem Environm & Raw Mat Engn Dept, DICAMP, I-34127 Trieste, Italy
[2] Univ Galati, Fac Food Sci Aquaculture & Fishing, Galati 6200, Romania
来源：
JOURNAL OF SUPERCRITICAL FLUIDS | 1999年 / 14卷 / 02期
关键词：
antioxidant; carbon dioxide; solubility; supercritical fluid;
D O I：
10.1016/S0896-8446(98)00119-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, the solubility of natural and synthetic antioxidants in supercritical carbon dioxide is determined by a dynamic method in the pressure range 130-250 bar at 308.1-333.1 K. The compounds considered are ascorbic acid, ascorbyl palmitate, gallic acid, propyl gallate, lauryl gallate, alpha-tocopherol acid succinate and butyl hydroxyl anisole. The experimental data are correlated using the Peng-Robinson equation of state, and the solute properties are estimated by group contribution methods. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：139 / 144
页数：6
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