engleski

Volatile compounds from leaf-buds of Populus nigra L. (Salicaceae)

Volatile components from fresh and air-dried leaf-buds of Populus nigra L. (Salicaceae) were isolated by Likens-Nickerson apparatus and analyzed using GC/MS. Forty-eight components (ca. 95% of the total isolate) were identified among black poplar bud volatiles. Sesquiterpene alcohols beta-eudesmol and alpha-eudesmol represented 26.3–28.7% of the oil. Other major sesquiterpene compounds were gama-selinene (7.6–8.8%), delta-cadinene (7.8–8.6%), alpha-elemene (3.3–5.2%) and gama-cadinene (3.9–4.2%). Hemiterpenes were also identified (2.2–7.6%). Monoterpenes were present in low percentages (1.6–5.7%). Aliphatic and aromatic alcohols, carbonyl compounds and aliphatic acids were identified among non-terpene volatiles (9.8–13.5%). The fresh buds contained 0.27% and dried 0.12% essential oil. Air-drying moderately effected the volatiles qualitative and quantitative composition.

Populus nigra L.; Gemmae populi; Salicaceae; Black poplar; Volatiles; GC/MS

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