Influência da temperatura do ar de secagem sobre o teor e a composição química do óleo essencial de Lippia alba (Mill) N. E. Brown

Química Nova

Fabrizio Da F. Barbosa²  Luiz C. A. Barbosa²  Evandro C. Melo¹  Fernando Mendes Botelho¹  Ricardo H. S. Santos¹ 

[1] ,Universidade Federal de Viçosa Departamento de Química Viçosa MG ,Brasil

关键词: medicinal plant;    Lippia alba;    citral;   

DOI  :  10.1590/S0100-40422006000600014

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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