Zymasil Aromatic is a pure culture of a particular strain of Saccharomyces cerevisiae ph.v. cerevisiae, capable of enhancing during fermentation the primary varietal aromatic components of grapes, while simultaneously facilitating the formation of secondary components which contribute towards a greater aromatic characterizationof the wine. Zymasil Aromatic is capable of breaking up the odourless glucosides (terpenes bound with sugars), thus freeing the various terpenes which, depending on the proportion of their presence, give a wine its distinctive characteristics.