Influência da temperatura do ar de secagem sobre o teor e a composição química do óleo essencial de Lippia alba (Mill) N. E. Brown
oleh: Fabrizio da F. Barbosa, Luiz C. A. Barbosa, Evandro C. Melo, Fernando Mendes Botelho, Ricardo H. S. Santos
| Format: | Article |
|---|---|
| Diterbitkan: | Sociedade Brasileira de Química 2006-12-01 |
Deskripsi
Leaves of Lippia alba were submitted to six different drying treatments, using air at ambient temperature and heated up to 80 °C. The essential oil was extracted by steam distillation and analyzed by GC-MS. For the dried leaves, the oil content was reduced by 12 to 17% when compared with the fresh plant (0.66%). The major oil component was citral, representing 76% for the fresh plant, and varying from 82 to 84% for the dried material. These results showed that L. alba can be submitted to a drying process of up to 80 ºC without degradation and/or loss of the major, [LC1] active component.