“…In fact, acetaldehyde can be produced by several other biochemical pathways in LAB (e.g. by pyruvate decarboxylation), which can operate simultaneously (Ott et al, 2000;Chaves et al, 2002). However, the yield of acetaldehyde during fermentation of Lactococcus lactis is low (Bongers et al, 2005), as opposed to species used in yogurt starter culture, Lactobacillus delbrueckii subsp.…”