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South African Journal of Enology and Viticulture

On-line version ISSN 2224-7904
Print version ISSN 0253-939X


VASILE SIMONE, G. et al. Aromatic characterisation of Malvasia odorosissima grapevines and comparison with Malvasia di Candia aromatica. S. Afr. J. Enol. Vitic. [online]. 2018, vol.39, n.1, pp.77-88. ISSN 2224-7904.

Malvasia odorosissima is an aromatic grapevine (Vitis vinifera L., 1753) variety that is often confused with Malvasia di Candia aromatica (Vitis vinifera L., 1753), despite the genetic information now available on the pedigree and genetic relationships linking the two varieties. In an effort to offer a contribution to fill this gap, also from an aromatic point of view, free and glycosylated aroma compounds were determined using the SPE extraction method, followed by GC-MS analysis in two consecutive vintages. The results have for the first time provided the aromatic characterisation of Malvasia odorosissima. Geraniol and its derivatives were the most abundant set of volatiles. In contrast to Malvasia di Candia aromatica and the other aromatic varieties, Malvasia odorosissima showed a very small amount of glycosylated volatiles, thus expressing its aromatic potential almost completely. The abundance of free terpenoids in the aromatic profile of Malvasia odorosissima, even higher than in Malvasia di Candia aromatica, is a main feature for the oenological exploitation of this variety, which is on the brink of extinction. In addition, the presence of rose oxides, found solely in Malvasia odorosissima, renders its aromatic profile more similar to that of White Muscat. This result is consistent with the parent-offspring relationship linking the two varieties that was recently ascertained.

Keywords : Malvasia di Candia aromatica; Malvasia odorosissima; aromatic wine grapes; SPE-GC-MS approach; aroma compounds; rose oxide isomers.

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