Evaluation of the chemical composition of Brazilian commercial Cymbopogon citratus (DC) stapf samples

被引：78

作者：

Almeida Barbosa, Luiz Claudio ^{[1
]}

Pereira, Ulisses Alves ^{[1
]}

Martinazzo, Ana Paula ^{[2
,3
]}

Alvares Maltha, Celia Regina ^{[1
]}

Teixeira, Robson Ricardo ^{[1
]}

Melo, Evandro de Castro ^{[3
]}

机构：

[1] Univ Fed Vicosa, Dept Chem, BR-36570000 Vicosa, MG, Brazil

[2] Univ Fed Fluminense, Dept Agr Engn, Rio De Janeiro, Brazil

[3] Univ Fed Vicosa, Dept Agr Engn, BR-36570000 Vicosa, MG, Brazil

来源：

MOLECULES | 2008年 / 13卷 / 08期

关键词：

Cymbopogon citratus; lemongrass; citronella grass; essential oil; losses and changes of oil;

D O I：

10.3390/molecules13081864

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The concentration and the chemical composition of the essential oils obtained from different samples of Cymbopogon citratus were evaluated. Among the 12 samples investigated (11 dried leaf samples and fresh plant leaves), seven presented essential oil concentrations within the threshold established by the Brazilian legislation. The moisture content was also determined and the majority of the samples presented humidity contents near 12%. The GC and GC/MS analyses of the essential oils led to identification of 22 compounds, with neral and geranial as the two major components. The total percentage of these two compounds varied within the investigated sample oils from 40.7% to 75.4%. In addition, a considerable variation in the chemical composition of the analyzed samples was observed. The process of grinding the leaves significantly decreased (by up to 68%) the essential oil content, as well as the percentage of myrcene in the oils.

引用

页码：1864 / 1874

页数：11