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

页码：139 / 144

页数：6

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