Response surface optimization of supercritical CO2 extraction of α-tocopherol from gel and skin of Aloe vera and almond leaves

被引：25

作者：

Bashipour, Fatemeh ^{[1
]}

Ghoreishi, Seyyed M. ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Chem Engn, Esfahan 8415683111, Iran

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2014年 / 95卷

关键词：

Supercritical CO2 extraction; alpha-Tocopherol; Aloe vera; Almond leaves; Response surface methodology; CARBON-DIOXIDE EXTRACTION; FLUID EXTRACTION; BARBADENSIS MILLER; BETA-CAROTENE; PARAMETERS; OIL;

D O I：

10.1016/j.supflu.2014.09.034

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：

Supercritical fluid extraction (SFE) was studied as an alternative technology in the pharmaceutical industry for the separation of alpha-tocopherol from gel and skin of Aloe vera and almond leaves. The influence of operating conditions was investigated on the recovery of supercritical carbon dioxide (SC-CO2) extraction of alpha-tocopherol from three-year old Aloe vera (Aloe barbadensis Miller) leaf gel. The obtained results were compared with the conventional Soxhlet extraction. Response surface methodology (RSM) was applied to optimize effective variables on the extracted recovery of alpha-tocopherol. The maximum alpha-tocopherol recovery of 53.41% from Aloe vera gel was obtained with employing RSM predicted optimal operating conditions of 32 MPa, 45.91 degrees C, 0.84 ml SC-CO2/min and 140 min for extraction. The alpha-tocopherol extraction yield for gel and skin of Aloe vera and almond leaves at these optimal operating conditions were obtained 1.53, 16.29 and 2.61 mg/100 g dry sample, respectively. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：348 / 354

页数：7

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