Table 3.
Concentration of four monocarbonyl and six α-dicarbonyl GDPs as well as total GDPs in PDFs in µM after 0 and 26 weeks of storage at 50 °C and 45% relative humidity.
| Week 0 | Week 26 | |||
|---|---|---|---|---|
| Single-chamber bag | Double-chamber bag | Single-chamber bag | Double-chamber bag | |
| Formaldehyde | 5.0 ± 0.2 | n.q.a | 17.7 ± 0.3 | 2.5 ± 0.1 |
| Acetaldehyde | 129.5 ± 5.9 | 2.2 ± 0.1 | 111.6 ± 2.7 | 1.5 ± 0.2 |
| 5-HMF | 11.1 ± 0.6 | 22.5 ± 1.3 | 172.8 ± 4.6 | 121.6 ± 3.3 |
| Furfural | ≤ 1.4 ± 0.1 | ≤ 0.3 ± 0.01 | n.a.b | n.a |
| Glucosone | 25.0 ± 2.7 | 1.6 ± 0.02 | 12.0 ± 0.6 | 6.1 ± 0.01 |
| 3-DG | 171.1 ± 4.6 | 28.6 ± 1.1 | 88.5 ± 4.9 | 9.4 ± 0.02 |
| 3-DGal | 127.1 ± 3.9 | 19.7 ± 0.7 | 55.9 ± 3.1 | n.q |
| Glyoxal | 9.2 ± 0.5 | n.d.c | 41.4 ± 2.5 | 1.0 ± 0.1 |
| 3,4-DGE | 10.6 ± 0.4 | 2.8 ± 0.05 | 16.1 ± 0.8 | n.q |
| MGO | 8.0 ± 0.4 | n.d | 3.1 ± 0.2 | n.d |
| Total GDPd | 496.6 ± 16.0 | 77.6 ± 3.4 | 519.1 ± 13.1 | 142.4 ± 3.0 |
an.q., not quantifiable; bn.a., not assessed because of a coeluting compound; cn.d., not detectable, dexcluding furfural.
Mean values ± standard deviation of three different PDF bags are displayed.