Term (also antioxidants) for substances that slow down or almost prevent oxidation (reaction with atmospheric oxygen). Such substances also occur naturally in food and in the human organism. In wine, these are flavonoids and phenols (polyphenols). The most important antioxidants with regard to winemaking are ascorbic acid (vitamin C) and sulphur. See also under Agents in winemaking.
Serious sources on the internet are rare - and Wine lexicon from wein.plus is one such source. When researching for my articles, I regularly consult the wein.plus encyclopaedia. There I get reliable and detailed information.
Thomas Götz
Weinberater, Weinblogger und Journalist; Schwendi