A convenient method for the determination of moisture in aromatic plants.
2006
PIMENTEL, F. A. | CARDOSO, M. das G. | SALGADO, A. P. S. P. | AGUIAR, P. M. | SILVA, V. de F. | MORAIS, A. R. de | NELSON, D. L. | FLAVIO ARAUJO PIMENTEL, CPAF-AC; MARIA DAS GRAÇAS CARDOSO, UNIVERSIDADE FEDERAL DE LAVRAS; ANA PAULA S. P. SALGADO, UNIVERSIDADE FEDERAL DE LAVRAS; PRISCILA M. AGUIAR, UNIVERSIDADE FEDERAL DE LAVRAS; VANISSE DE F. SILVA, UNIVERSIDADE FEDERAL DE LAVRAS; AUGUSTO RAMALHO DE MORAIS, UNIVERSIDADE FEDERAL DE LAVRAS; DAVID LEE NELSON, UNIVERSIDADE FEDERAL DE MINAS GERAIS.
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 o C 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).
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