Table 3.
Change in the fat content of extruded composite flour samples packed in paper, polyethene and polypropylene bags during accelerated storage tests at different temperatures.
| Storage period (Days) | Paper |
Polyethene |
Polypropylene |
||||||
|---|---|---|---|---|---|---|---|---|---|
| 25 °C | 35 °C | 45 °C | 25 °C | 35 °C | 45 °C | 25 °C | 35 °C | 45 °C | |
| 0 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 |
| 15 | 9.3 | 9.1 | 9.1 | 9.3 | 9.2 | 9.1 | 9.2 | 9.1 | 9.0 |
| 30 | 9.1 | 9.0 | 9.0 | 9.2 | 9.0 | 8.9 | 9.0 | 8.9 | 8.8 |
| 45 | 9.1 | 8.9 | 8.8 | 9.2 | 9.0 | 8.8 | 8.9 | 8.8 | 8.6 |
| 60 | 9.0 | 8.8 | 8.7 | 9.1 | 8.9 | 8.7 | 8.8 | 8.6 | 8.5 |
| 75 | 8.9 | 8.7 | 8.6 | 9.0 | 8.8 | 8.6 | 8.7 | 8.6 | 8.5 |
| 90 | 8.7 | 8.6 | 8.4 | 8.9 | 8.7 | 8.6 | 8.4 | 8.4 | 8.2 |
| Rate/day | 0.008 | 0.009 | 0.011 | 0.006 | 0.007 | 0.009 | 0.011 | 0.011 | 0.013 |
| End-point value | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 |
| Shelf life (days) | 316.9 | 274.4 | 234.4 | 432.7 | 335.8 | 267.9 | 229.6 | 220.6 | 186 |
| Ea. (cals/mole) | 3152.5 | 4448.1 | 3317.6 | ||||||
| Q10 value | 1.25 | 1.38 | 1.27 | ||||||