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 gamma-selinene (7.6-8.8%), delta-cadinene (7.8-8.6%), alpha-elemene (3.3-5.2%) and gamma-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.
Jerković
Igor
I
Department of Organic Chemistry, Faculty of Chemical Technology, University of Split, N Tesle 10/V, HR-21 000 Split, Croatia. igor@ktf-split.hr
Mastelić
Josip
J
D008401:Gas Chromatography-Mass Spectrometry; D018515:Plant Leaves / Q000737:chemistry* / Q000254:growth & development; D032107:Populus / Q000737:chemistry*; D012717:Sesquiterpenes / Q000032:analysis / Q000737:chemistry*; D014835:Volatilization
D012717:Sesquiterpenes