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

By headspace-analysis in combination with gas chromatographic-spectros copic systems (GC-FLD and GC-FTIR-MS) as well as by GC-sniffing-techni que it was possible to correlate different vine-varieties by means of the composition of their corresponding vine blossoms fragrance compoun ds. 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 mignon ette-like, acrid-dusty and green side-note. The blossoms differ, depen ding on the vine-variety, only in the intensity of single odor impress ions, but not in the direction of the total odor The analysis of heads pace [3, 4] constituents of different samples of blossoms using of GC- FID, GC-FTIR-MS and the combination with the GC-sniffing-technique all ows the identification of odor dominating sesquiterpenes and odor assi stant monoterpenes. Various correlations (odor profiles, qualitative a nd quantitative statistics and multivariate data analyses) give additi onal information for the characterization of investigated red vine spe cies. A clear separation of the red vine species from the white vine s pecies in respect of the multivariate data analysis [5, 6] of the inve stigations of headspace constituents of single blossoms is also possib le.