RT Journal Article SR Electronic T1 Stereoisomers of ß-Methyl-γ-Octalactone. II. Contents in the Wood of French (Quercus robur and Quercus petraea) and American (Quercus alba) Oaks JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 424 OP 428 DO 10.5344/ajev.1995.46.4.424 VO 46 IS 4 A1 G. Masson A1 E. Guichard A1 N. Fournier A1 J.-L. Puech YR 1995 UL http://www.ajevonline.org/content/46/4/424.abstract AB Multidimensional gas chromatography was used to determine ß-methyl-γ-octalactone (oak lactone) in wood extracts obtained from 30 newly felled oaks (Pedunculate, Sessile, and White) from French and American forests. Only two of the four stereoisomers of oak lactone were detected. Comparisons between trees, forests, and species revealed high variability in the levels of the two stereoisomers. Statistical analyses indicated that the wood of Sessile and American White oaks also contained significantly larger amounts of total oak lactone than the wood of Pedunculate oaks. The American White oaks were significantly richer in cis-ß-methyl-γ-octalactone than either the Pedunculate or Sessile oaks.