A surprising method for green extraction of essential oil from dry spices: Microwave dry-diffusion and gravity

被引：50

作者：

Farhat, Asma ^{[1
,2
]}

Fabiano-Tixier, Anne-Sylvie ^{[1
]}

Visinoni, Franco ^{[3
]}

Romdhane, Mehrez ^{[2
]}

Chemat, Farid ^{[1
]}

机构：

[1] Univ Avignon & Pays Vaucluse, INRA, UMR 408, F-84000 Avignon, France

[2] Ecole Natl Ingn Gabes, Unite Rech Modelisat Anal & Commande Syst, Gabes 6029, Tunisia

[3] MILESTONE Srl, I-26010 Bergamo, Italy

来源：

JOURNAL OF CHROMATOGRAPHY A | 2010年 / 1217卷 / 47期

关键词：

Microwave; Extraction; Dry-diffusion; Earth gravity; Essential oil; Spices;

D O I：

10.1016/j.chroma.2010.09.062

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Without adding any solvent or water, we proposed a novel and green approach for the extraction of secondary metabolites from dried plant materials. This "solvent, water and vapor free" approach based on a simple principle involves the application of microwave irradiation and earth gravity to extract the essential oil from dried caraway seeds. Microwave dry-diffusion and gravity (MDG) has been compared with a conventional technique, hydrodistillation (HD), for the extraction of essential oil from dried caraway seeds. Essential oils isolated by MDG were quantitatively (yield) and qualitatively (aromatic profile) similar to those obtained by HD, but MDG was better than HD in terms of rapidity (45 min versus 300 min), energy saving, and cleanliness. The present apparatus permits fast and efficient extraction, reduces waste, avoids water and solvent consumption, and allows substantial energy savings. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：7345 / 7350

页数：6

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