Abstract
Terpene glycosides were isolated from a bitter Muscat of Alexandria wine. When the glycosidic extract was added to a model system or to wine at levels one and two times the concentration in the original wine, no significant difference in taste was produced, whereas in water at single-strength concentration, a significant difference was produced (p < 0.05) which was described as a faint fruity or floral flavor. When evaluated in water at ten times the wine concentration, the glycosidic extract produced a low-intensity bitter taste, which was of the magnitude of that elicited by 2 mg/L quinine. It may be concluded that the terpene glycosides do not contribute to bitterness in Muscat wines.
- Received August 1987.
- Copyright 1988 by the American Society for Enology and Viticulture