Intraspecific Variation in the Essential Oils from Drimys brasiliensis Leaves and Stem Barks
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2011-02-01
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Lago, Joao Henrique Ghilardi [UNIFESP]
Carvalho, Larissa Anastacio da Costa
Ferreira, Marcelo Jose Pena
Romoff, Paulete
Zanin, João Luiz Baldim
Soares, Marisi Gomes
Favero, Oriana Aparecida
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The essential oils from leaves and stem barks of Drimys brasiliensis Miers (Winteraceae), collected in July and December 2008, were analyzed by GC/FID and GC/MS. The stem bark oils were composed mainly of monoterpenes (July, 45 +/- 3%; December, 92 +/- 4%), while the oils from leaves showed the predominance of sesquiterpenes (July, 47 +/- 1%; December, 55 +/- 1%). The variation in the relative amount of constituents could be associated, at least in part, to several microclimatic parameters such as precipitation, temperature and/or phenological state, which were different for each collection of D. brasiliensis.
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Natural Product Communications. Westerville: Natural Products Inc, v. 6, n. 2, p. 243-245, 2011.