While this process can produce lactic acid, acetic acid,
propionic acid and other organic acids, that give the products
their sour taste, in fermentation of vegetables it also produces volatile
flavour components such as esters, isothiocyanates, alcohols, ketones,
aldehydes, hydrocarbons, acids, nitriles, sulfides and heterocyclic compounds
— particularly in the mid- to late-fermentation stages