Copaifera multijuga Hayne é uma das espécies do gênero Copaifera da qual se extrai o óleo de copaíba. Além do uso como antiinflamatório e anti-séptico, o óleo de copaíba é utilizado na indústria de fragrâncias como fixador para perfumes, cosméticos e sabões. A fim de identificar as substâncias ativas no aroma do óleo de C. multijuga, CG-O-EM utilizando AEDA foi aplicada após a quantificação dos compostos por CG-DIC. Os resultados obtidos apontaram para δ-cadineno (1,9%, FD 64), δ-cadinol (0,9%, FD 128), óxido de cariofileno (0,2%, FD 64), (Z)-α-santalol (0,2%, FD 128), α-cadinol (0,1%, FD 128) e τ-muurolol (0,1%, FD 128) como as substâncias de odor mais ativo no aroma deste óleo de copaíba. Quanto à contribuição aromática dos enanciômeros do δ-cadineno analisada por CG-EM-O-quiral, somente o enanciômero (+)-δ-cadineno foi encontrado no óleo e apresentou aroma adocicado, verde e refrescante.Copaifera multijuga Hayne is one of the Copaifera species from which copaiba oil is extracted. Employed in the composition of anti-inflammatory and antiseptic products used in phytotherapy, it is also used by the fragrance industry as a fixative in perfumes, cosmetics and in products such as soaps. To identify the active aroma compounds in C. multijuga oil bouquet, GC-O-MS using AEDA (Aroma Extract Dilution Analysis) was used after the quantification of the components by GC-FID. The results obtained pointed to minor compounds such as δ-cadinene (1.9%, FD 64), δ-cadinol (0.9%, FD 128), (Z)-α-santalol (0.2%, FD 128) caryophyllene oxide (0.2%, FD 64), α-cadinol (0.1%, FD 128) and τ-muurolol (0.1%, FD 128) as the most intense compounds in the odor of the copaiba oil studied. Chiral GC-O-MS showed (+)-δ-cadinene as the only enantiomer present in the oil, with a sweet, green and refreshing aroma.
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