Adjective
Pertaining to, or obtained from, apples; as, malic acid.
Source: Webster's dictionaryWe’re going to get a little Bill Nye here…malolactic fermentation is the secondary fermentation of a wine, in which the tart, malic acids are transformed into smooth and creamy lactic acids. Source: Internet
I put the cookies, white chocolate, freeze dried apple powder, vanilla paste, cinnamon, salt, and malic acid into the food processor. Source: Internet
Is apple cider vinegar malic acid though? Source: Internet