Abstract
The aim of this study was to investigate the sensory aroma profiles of white wines of the indigenous Greek grape varieties Assyrtiko, Malagousia, Moschofilero, and Roditis. Twenty-three panelists evaluated 17 wines of the aforementioned varieties using the frequency of attribute citation method. Three indices were calculated to assess panel performance in terms of reproducibility. Correspondence analysis and cluster analysis were employed to investigate the sensory space of the wines. Samples of the Roditis variety were characterized mainly by Banana and Vanilla odors; Assyrtiko samples had Earthy, Mushroom, and Nutty odors, as well as Lemon and Honey for some of the samples. Malagousia wines were described as having Lemon, Grapefruit, and Citrus blossom character, and they shared some descriptors with Assyrtiko wines, such as Mushroom and Earthy, and some with Moschofilero samples, i.e., floral and citrus notes. All Moschofilero wines exhibited a floral odor profile: specifically, Rose, Jasmine, or more Citrus blossom-like. Moreover, some Moschofilero samples also revealed a Grapefruit, Lemon, and/or Earthy character, while others expressed Honey notes. In conclusion, despite common characteristics found within varieties, some samples of different varieties exhibited overlapping profiles, and in some cases, samples of the same variety were quite different from each other.
Highlights
In the last decade, the wine produced from indigenous Greek grape varieties has been increasingly appreciated in the global wine market [1]
Banana was cited by 50% of the panel in Cluster 4, followed by Rose. These results indicate that a flower character prevails in the aroma profiles of Clusters 1 and 3, while Cluster 2 shows a lemonish character, and Cluster 4 is characterized by a banana aroma
The overall performance of the panel was based on the reproducibility of their evaluations and their discrimination ability. The former was evaluated through multidimensional scaling (Figure 1), Cochran’s Q test (Table 4), and Friedman’s test (Table 5), while the latter was assessed through the wine effect on attribute selection by Cochran’s Q test (Table 4)
Summary
The wine produced from indigenous Greek grape varieties has been increasingly appreciated in the global wine market [1]. Assyrtiko wines have been described as having lime, passion fruit, beeswax, flint, and ‘salty’ aromas [5]. Malagousia is another relatively well-known white variety. This grape variety was saved from extinction: most growers have abandoned it because of its sensitivity to oidium, but its distinctive aroma contributed to its re-plantation. It is planted all over the country and not related to any Protected Designations of Origin (PDOs) [4]. Moschofilero is a variety located in northern Peloponnese, and it is the unique variety of the single varietal PDO Mantinia
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