Figure 3

GDP concentration in single-chamber PDFs over storage time. (a) Total GDP content (filled circle); (b) 3-DG (open triangle), 3-DGal (open diamond), and glucosone (asterisk); (c) 3,4-DGE (open square), glyoxal (open circle), and MGO (plus symbol); (d) acetaldehyde (filled diamond) and 5-HMF (dashed line); (e) formaldehyde (filled square); (f) stacked area graph showing all quantified GDPs. Mean values ± standard deviation of three different PDF bags are displayed (except for week 13, for which the mean values ± range of two bags are displayed).