Revista Brasileira de Farmacognosia | |
Composition and seasonal variation of essential oils of Myrcia obtecta (O. Berg) Kiaersk. var. obtecta, Myrtaceae | |
Simionatto, Edésio Luiz1  Wisniewski Jr, Alberto1  Stefanello, Maria Élida Alves1  UFPR, Curitiba, Brasil1  Fundação Universidade de Blumenau, Blumenau, Brasil1  Cervi, Armando Carlos1  | |
关键词: Myrcia obtecta; Myrtaceae; essential oil; seazonal variation; trans-calamenene; methyl salicylate.; | |
DOI : 10.1590/S0102-695X2010000100017 | |
来源: Sociedade Brasileira de Farmacognosia | |
【 摘 要 】
The essential oils isolated by hydrodistillation from leaves and flowers of Myrcia obtecta (O. Berg) Kiaersk. var. obtecta, Myrtaceae, collected bimonthly in Curitiba, Paraná state, Brazil, from October/2005 to August/2006 were analyzed by capillary GC and GC/MS. Fifty-five components were identified in the leaf oils, which were characterized by predominance of cyclic sesquiterpenes (around 70%) and variable amounts of monoterpenes (5.616.7%), aliphatic compounds (0.4-5.5%) and methyl salicylate (0.1-1.5%). The major component in all samples was trans-calamenene (17.0-29.3%). The composition did not show significant seasonal variation, except in October (flowering) when α-terpineol and trans-calamenene peaked (11.2% and 29.3%, respectively). The flower oil was characterized by high content of methyl salicylate (89%).
【 授权许可】
Unknown
【 预 览 】
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RO201912010145321ZK.pdf | 671KB | download |