Term for the biochemical metabolism of organic substances in the presence of
oxygen, When breathing animal or human beings, for example, the cells burn the energy building block
sugar to
carbon dioxide and
water, However, complete combustion requires aerobic conditions, ie sufficient oxygen. In the
winemaking it comes through oxygen
oxidative processes; see below
oxidative expansion and
reductive expansion, The
fermentation usually goes down for the most part
anaerobic Conditions (absence of oxygen) from. Areobe conditions (presence of oxygen) but are important before or at the beginning of fermentation, as the
yeasts only in an oxygen-rich environment can divide and multiply. The scientist Louis
Pasteur (1822-1895) reported as early as 1861 that yeasts in aerobic environments consume much less sugar. In this context one speaks of the named after the English biochemist
Crabtree effect, The fermentation-like process of fermentation runs under aerobic conditions.