Supercritical carbon dioxide extraction and characterization of Laurus nobilis essential oil

被引：89

作者：

Caredda, A ^{[1
]}

Marongiu, B ^{[1
]}

Porcedda, S ^{[1
]}

Soro, C ^{[1
]}

机构：

[1] Univ Cagliari, Dipartimento Sci Chim, I-09042 Cagliari, Italy

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2002年 / 50卷 / 06期

关键词：

supercritical carbon dioxide extraction; essential oil; Laurus nobilis;

D O I：

10.1021/jf0108563

中图分类号：

S [农业科学];

学科分类号：

09 [农学];

摘要：

Supercritical carbon dioxide extraction allowed, essential oil of Laurus nobilis to be obtained. Extraction conditions were as follows: :pressure, 90 bar; temperature, 50 degreesC; and carbon dioxide flow, 4) = 1.0 kg/h. Waxes were entrapped in the first separator set at 90 bar and -10 degreesC. The oil was recovered in the second separator working at 15 bar and 10 degreesC. The main components were 1,8-cineole (22.8%), linalool (12.5%), alpha-terpinyl acetate (11.4%), and methyleugenol (8.1%). Comparison with the hydrodistilled oil did not reveal any significant difference. Collection of samples at different extraction times during supercritical extraction allowed the change of the oil composition to be monitored. Lighter compounds such as hydrocarbon and oxygenated monoterpenes were extracted in shorter times than the heavier hydrocarbon and oxygenated sesquiterpenes.

引用

页码：1492 / 1496

页数：5