Large group of mostly organic hydrocarbon, but also some oxygen compounds, which are the main component of essential oils. These colorless flavorings also come in the form of aldehydes, Ketones and alcohols in numerous oils, balms and vegetable resinate in front. Terpene derivatives are, for example, camphor, citral, linalool Menthol nerol (Geraniol), pinene and phytol. Also the carotenoids (large group of dyes found in the animal and plant kingdom) are among the terpenes. Terpenes are present in the grapes in free form, or are also in the winemaking formed in bound form.
They give the grapes or the wine made from them a characteristic and easily recognizable Aroma (Primary flavor). They are particularly pronounced with 1 to 4 mg / l Muskateller- and Traminer varieties (especially Gewurztraminer ) as well as in smaller quantities Riesling and Sauvignon Blanc in front. Terpenes are also in the Oak wood especially of American origin. The typical smell is one wine address often with the terms balmy. flowery ( roses ) or spicy designated.