AROMA OF RED VINE BLOSSOMS - CORRELATION OF SENSORIC DATA WITH HEADSPACE CONSTITUENTS

By headspace-analysis in combination with gas chromatographic-spectroscopic systems (GC-FLD and GC-FTIR-MS) as well as by GC-sniffing-technique it was possible to correlate different vine-varieties by means of the composition of their corresponding vine blossoms fragrance compounds. Red vine blossoms possess a similar odor to white vine blossoms [1, 2] with a beautiful floral and fruity-fresh note as well as a mignonette-like, acrid-dusty and green side-note. The blossoms differ, depending on the vine-variety, only in the intensity of single odor impressions, but not in the direction of the total odor The analysis of headspace [3, 4] constituents of different samples of blossoms using of GC-FID, GC-FTIR-MS and the combination with the GC-sniffing-technique allows the identification of odor dominating sesquiterpenes and odor assistant monoterpenes. Various correlations (odor profiles, qualitative and quantitative statistics and multivariate data analyses) give additional information for the characterization of investigated red vine species. A clear separation of the red vine species from the white vine species in respect of the multivariate data analysis [5, 6] of the investigations of headspace constituents of single blossoms is also possible.