
Wine Yeasts

Wine Bacteria

Nutrients / Protectors

Specific Inactivated Yeasts

Enzymes

Chitosan

Vineyard Solutions

Selected by INRA Narbonne - France
Specie
Saccharomyces cerevisiae
Competitive Factor
Sensitive
General Sensory Contribution
Esters

White Wine

Rosé Wine

For fresh, fruity nouveau wines. Has the ability to degrade malic acid.
Selected in Narbonne France by the National Research Institute of Agronomy (INRA) for its fruity aroma in production of red and white Vins Nouveaux. Due to the production of relatively stable esters, particularly isoamyl acetate, 71B gives a characteristic fruity aroma which reinforces the grape varietal profile. 71B also softens high acid musts by partially metabolizing malic acid (up to 20-40%). A popular strain for production of fresh fruity red wines, including those for early consumption, and enhances wine aromas of Viognier and Gamay. Noted for its ability to limit red wine tannin, colour and structure. A compatible yeast strain for MLF.Fermentation Speed
Moderate
Glycerol Production
High
Lag Phase
Very short
Nitrogen Needs
Low
Alcohol Tolerance
14 %
SO₂ Production
Low
Max. Temperature
30 °C
Min. Temperature
15 °C
H₂S 170ppm
Low
H₂S 60ppm
Low
Reaction to O₂ addition
Moderate
Acetaldehyde Production
Very low