The aim of this work was to assess the performances wine byproduct biomass for hydrogen production by dark fermentation. Grape must deposits from two grape varieties (Pinot Gris and Chardonnay) were considered, either with external microbial inoculum or without. We show that residues contain endogenous microflora, well adapted their environment, which can degrade sugars (initially contained in ...

Abstract The aim of the paper was to determine potential using grape must and unconventional yeasts in beer production process. Samples were fermented non- Saccharomyces ( Dekkera bruxellensis 3429, Wickerhamomyces anomalus MG971261, Kluyveromyces lactis MG971263), cerevisiae Safale US-05 used as a control. Grape pasteurized and, together with wort, volumetrically introduced into fermentation f...

BACKGROUND Aerobic fermentation of grape must, leading to respiro-fermentative metabolism of sugars, has been proposed as way of reducing alcohol content in wines. Two factors limit the usefulness of Saccharomyces cerevisiae for this application, the Crabtree effect, and excess volatile acidity under aerobic conditions. This work aimed to explore the impact on ethanol acetate production of diff...

BACKGROUND The determination of micro-, macroelements and heavy metals in the soil-grapevine-wine system is extremely important for the wine industry, the grape and wine quality, and also for consumer health. The quantitative analysis of 10 elements: Na, Ca, Mg, Fe, Cu, Zn, Pb, Cd, Ni, Co were made in soil at different depths and also in grapevines (leaves and canes). For grape juice and wine t...