Applicability of Saccharomyces cerevisiae Strains for the Production of Fruit Wines Using Cocoa Honey Complemented with Cocoa Pulp

Research background. Cocoa honey and cocoa pulp are both highly appreciated fruit pulp, but until now, cocoa honey has been less processed than cocoa pulp. In this work, we investigate the applicability of Saccharomyces cerevisiae strains to ferment cocoa honey complemented with cocoa pulp to obtain fruit wines and improve cocoa honey commercialization. Experimental approach. The strain, previously isolated from cachaçaria distilleries in Brazil, was selected based on its fermentation performance. The following conditions for fermentation with S. cerevisiae L63 were then studied: volume fraction of cocoa honey (φCH) complemented with cocoa pulp, sucrose addition (γsuc), temperature (t) and inoculum size (No). The best conditions were applied in order to obtain fermentation profiles. Results and conclusions. S. cerevisiae L63 (No=107–108 cell/mL) is capable of fermenting φCH=90 and 80 % for 24 or 48 h with γsuc=50 and 100 g/L at t=28–30 °C resulting in wines with ethanol volume fractions from 8 to 14 %. Additionally, the wine produced from φCH=90 % had lower residual sugar concentration (