Seasonal Variation of the (E)-Nerolidol and Other Volatile Compounds Within Ten Different Cultivated Populations of Baccharis dracunculifolia DC (Asteraceae)

Author(s)

de Sousa, Joao Paulo B. ^[1] ; Jorge, Renata F. ^[1] ; Leite, Mateus F. ^[1] ; Furtado, Niege A. J. C. ^[1] ; Bastos, Jairo K. ^[1] ; da Silva Filho, Ademar A. ^[2] ; Queiroga, Carmem L. ^[3] ; de Magalhaes, Pedro M. ^[3] ; Soares, Ademilson E. E. ^[4]

Affiliation

^[1] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Lab Farmacognosia, BR-14040903 Ribeirao Preto, SP - Brazil

^[2] Univ Franca, Grp Pesquisas Prod Nat Nucl Pesquisa Ciencias Exa, BR-14404600 Franca, SP - Brazil

^[3] Univ Estadual Campinas, Ctr Pluridisciplinar Pesquisas Quim Biol & Agr, BR-13081970 Campinas, SP - Brazil

^[4] Univ Sao Paulo, Fac Med Ribeirao Preto, Dept Genet, BR-14049900 Ribeirao Preto, SP - Brazil

• Document type: Journal article
• Source: Journal of Essential Oil Research; v. 21, n. 4, p. 308-314, JUL-AUG 2009.
• Web of Science Citations: 12

Abstract

Initially, the seeds of Baccharis dracunculifolia were collected from populations of 10 different regions, and the cultivation experiment was carried out in an experimental area of 1,800 m(2) by cultivating 100 individuals of each population. The essential oil analyses were performed on both GC-FID and GUMS, which allowed the identification of 14 compounds. The oil yield varied from 0.31% to 0.70% among populations and season. The major oxygenated sesquiterpenes in the cultivated experiment were (E)-nerolidol (32%) and spathulenol (17%). The mean concentration in the plant of (E)-nerolidol was five times higher in March (136.53 mg/100 g of plant) than it was in July (25.03 mg/100 g of plant). The mean concentration of spathulenol increased about three fold from July (16.25 mg/100 g of plant) to April (47.50 mg/100 g of plant). (AU)