A convenient method for the determination of moisture in aromatic plants

A method is proposed for the determination of the moisture content of aromatic plants. This method is based on the co-distillation of the starting material in a modified Clevenger apparatus with four organic solvents (toluene, cyclohexane, dichloromethane and carbon tetrachloride). The results were...

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Bibliographic Details
Published in:Química Nova 2006-04, Vol.29 (2), p.373-375
Main Authors: Pimentel, Flávio A., Cardoso, Maria das Graças, Salgado, Ana Paula S. P., Aguiar, Priscila M., Silva, Vanisse de F., Morais, Augusto Ramalho de, Nelson, David Lee
Format: Article
Language:English
Subjects:
aromatic plant
CHEMISTRY, MULTIDISCIPLINARY
essential oil
moisture content
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Summary:A method is proposed for the determination of the moisture content of aromatic plants. This method is based on the co-distillation of the starting material in a modified Clevenger apparatus with four organic solvents (toluene, cyclohexane, dichloromethane and carbon tetrachloride). The results were compared with those obtained by oven drying at 105 ºC and steam distillation of the essential oil. The efficiencies of the methods were shown to be equivalent. The solvent distillation method was more practical, especially with respect to operating time (2 h).
ISSN:0100-4042
1678-7064
1678-7064
DOI:10.1590/S0100-40422006000200031