Extraction of Dittany (Origanum dictamnus) using supercritical CO2 and liquid solvent

被引：5

作者：

Lemonis, Ilias ^{[1
]}

Tsimogiannis, Dimitrios ^{[2
]}

Louli, Vasiliki ^{[1
]}

Voutsas, Epaminondas ^{[1
]}

Oreopoulou, Vasiliki ^{[2
]}

Magoulas, Kostis ^{[1
]}

机构：

[1] Natl Tech Univ Athens, Lab Thermodynam & Transport Phenomena, Sch Chem Engn, Athens 15780, Greece

[2] Natl Tech Univ Athens, Sch Chem Engn, Food Chem & Technol Lab, Athens 15780, Greece

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2013年 / 76卷

关键词：

Dittany (Origanum dictamnus); Hydrodistillation; Liquid extraction; Supercritical fluid extraction; Antioxidant activity; GREEK AROMATIC PLANTS; ANTIOXIDANT ACTIVITY; FLUID EXTRACTION; CHEMICAL-COMPOSITION; ASSISTED EXTRACTION; PHENOLIC-COMPOUNDS; ESSENTIAL OILS; OFFICINALIS; FLAVONOIDS; OREGANO;

D O I：

10.1016/j.supflu.2013.01.019

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：

Different extraction processes of dittany (Origanum dictamnus) for the recovery of extracts enriched with bioactive components were examined in this work. More specifically, hydrodistillation, extraction with a liquid organic solvent, supercritical CO2 extraction, as well as a combination of supercritical and liquid extraction were applied in order to recover improved extracts with respect to their antioxidant activity. The latter was determined by using a free radical method (DPPH circle). The antioxidant activities of the extracts obtained were compared with those of carvacrol, a main component of dittany, and BHT, a common synthetic antioxidant. It is shown that the combination of the conventional liquid extraction with supercritical extraction could be a promising alternative process for the recovery of extracts enriched with bioactive compounds. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：48 / 53

页数：6

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