http://www.lifeinitaly.com/wines/wine-food-tastes.asp

n CO2 + n H2O + photons → (CH2O)n + nO2 carbon dioxide + water + light → carbohydrate + oxygen enzyme zymase → 2 C2H5OH + 2 CO2 (CH2O)6 carbohydrate → alcohol + CO2

The Chemical Apparatus http://chrisbidleman.photoshelter.com/image/I0000TkdVzo8ulwc The Chemical Apparatus

CO2 + H2O → C6H6OH C6H12O6 + Zymase → 2 C2H5OH + 2 CO2 2n CO2 + 2n H2O + photons → 2(CH2O)n + 2n O2 carbon dioxide + water + light energy → carbohydrate + oxygen Other processes substitute other compounds (such as arsenite) for w CO2 + H2O → C6H6OH C6H12O6 + Zymase → 2 C2H5OH + 2 CO2