Yeast is a natural bioreactor which is not only responsible for alcoholic fermentation in winemaking. In addition, the yeast produces a number of natural, valuable ingredients during fermentation, which offer a variety of additional functions during wine maturation.
RePrise BIO is a new inactive yeast specifically designed for wine maturation after alcoholic fermentation and for the treatment of aged wines. It is produced exclusively on the basis of natural raw materials from certified organic agriculture, and contains no known allergens. Besides the complete inactivation of the yeasts by a vacuum process, the functional ingredients are protected by this gentle process. In particular, these are the polysaccharides and polypeptides of the yeast cell. They are the functional groups that serve as antioxidants, harmonisation of phenols, colour stabilisation of red wines or refreshment of old wines. They have reducing, adsorbing as well as complementary properties when applied in the wines. In addition, due to its natural production, RePrise BIO does not add its own yeasty taste to the wine.
With the entry into force of Regulation (EU) 2019/934 supplementing Regulation (EU) No 1308/2013 with regard to authorised oenological practices and restrictions on the production and conservation of wine products, the following amendment, inter alia, opens up further areas of use for the winemaker:
RePrise BIO is a purified inactivated yeast preparation and compliant with the organic regulation EC 834/2007 and 889/2008.
All components are GMO-free and compliant with Food Grade Standard.