Supercritical carbon dioxide extraction of turmeric oil from Curcuma longa Linn and purification of turmerones
Supercritical carbon dioxide extraction of turmeric oil from Curcuma longa Linn and purification of turmerones
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DOI：
10.1016/j.seppur.2005.06.018
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发表时间：
2006-01-01
影响因子：
8.6
通讯作者：
Chang, CMJ
中科院分区：
文献类型：
--
作者：
Chang, LH;Jong, TT;Chang, CMJ
This study investigates separation and purification of three turmerones from the turmeric oil extracted by supercritical carbon dioxide. Nearly, 800 g of supercritical carbon dioxide extraction of 75 g of 0.42 mm turmeric powders at 333 K and 300 bar obtained 6.98 wt% turmeric oil within 2.5 h. A response-surface methodology is adopted for optimizing supercritical carbon dioxide extraction to disclose that the combination of 320 K and 26 MPa gives an optimum production of turmeric oil containing 71 wt% purity of three turmerones. Subsequently, a normal phase silica gel 60 column is employed to separate and purify three major turmerones from the turmeric oil extracted by supercritical carbon dioxide. The 86 wt% purity of Ar-turmerone and 81 wt% purity of alpha+beta-turmerone have been separated, collected, and identified by liquid-solid chromatography, NMR qualification, and HPLC quantification, respectively. (C) 2005 Published by Elsevier B.V.
