"The Analysis of Volatile Organic Compounds from Fresh and Dried Leaves" by Denise G. Teotico, Maria Cristina A. Dancel et al.
 

The Analysis of Volatile Organic Compounds from Fresh and Dried Leaves of Vitex negundo by Thermal Desorption-Gas Chromatography

Document Type

Article

Publication Date

2000

Abstract

The generation and analysis of volatile organic compounds (VOCs) from fresh and dried leaves of Vitex negundo (lagundi) by thermal desorption-gas chromatography (TD-GC) is described. The leaves were heated at 80 to 120°C in a tube to release the VOCs. The VOCs were cryofocused into the gas chromatography (GC) column and analyzed. Five compounds were identified in the VOC by electron impact-MS and chemical ionization-MS analysis: β-phellandrene, hexenal, hexenol, octenol, and β-caryophyllene. The VOCs were quantified by flame ionization detection-GC. The profiles produced by TD-GC were compared with GC analysis of the oil obtained by steam distillation. TD-GC was found to be superior to steam distillation in its ability to differentiate fresh from dried leaves.

Share

COinS