Stimula SYRAH™

Stimula Syrah™ is particularly rich in different nitrogen sources (peptides and free amino acids), specific vitamins (pantothenate, thiamine) and minerals to increase the release of varietal aromas and avoid sulfur off-flavors. This specific composition results in an increase in the release of varietal aromas (thiols, terpenes and norisoprenoids). As the uptake of thiol precursors occurs in the very early stages of fermentation, the addition of Stimula Syrah™ at the very beginning of the alcoholic fermentation (AF) will enhance yeast metabolism, avoiding any catabolic repression and increasing the transporter’s efficiency. This is essential for thiol precursors and their bioconversion to volatile thiols, particularly 3-mercaptohexanol (3MH). In addition, the high level of vitamins (pantothenic acid) helps to avoid H2S production and limits the excessive reductive character that masks positive aromas. The optimized content in oligo-element (magnesium) also increases the yeast ethanol resistance.