Quantification of Several 4-Alkyl Substituted γ-Lactones in Australian Wines
作者:Rachel C. Cooke、Dimitra L. Capone、Katryna A. van Leeuwen、Gordon M. Elsey、Mark A. Sefton
DOI:10.1021/jf8026974
日期:2009.1.28
Stable isotope dilution assays have been developed for γ-octalactone (1), γ-nonalactone (2), γ-decalactone (3) and γ-dodecalactone (4) in both white and red wines for the first time. 2H7-analogues of each lactone were prepared for use as internal standards via a strategy employing ring-opening, esterification and oxidation of the respective starting lactones. The methods were shown to be highly accurate