Efeito da temperatura do ar de secagem sobre o teor e a composição química do óleo essencial de Pectis brevipedunculata
oleh: Marcia Terezinha Ramos de Oliveira, Pedro Amorim Berbert, Carlos Roberto Ribeiro Matos, Leda Mathias, Rafaela Oliveira Moreira
| Format: | Article |
|---|---|
| Diterbitkan: | Sociedade Brasileira de Química 2011-01-01 |
Deskripsi
Leaves and flower heads of P. brevipedunculata were submitted to four drying-air temperatures (room temperature, 40, 50 and 60 ºC). Room temperature (approximately 30 ºC) and higher temperature drying (50 and 60 ºC) had a deleterious effect on the essential oil content. The recommended drying-air temperature for the species is 40 ºC for it results in the same amount of essential oil observed in fresh cut plants. Overall, 13 components accounting for more than 92% of the total composition were identified. Citral was the major component, followed by α-pinene and limonene. The essential oil showed high toxicity against Artemia salina larvae.