Research Article
Oil Extraction from “Morelos Rice” Bran: Kinetics and Raw Oil Stability
Table 3
Evolution of the physicochemical parameters of raw oil under storage conditions.
| Month | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Average value | Standard deviation |
| Density | 0.912 | 0.915 | 0.916 | 0.919 | 0.918 | 0.918 | 0.917 | 0.916 | 0.916 | 0.002 | Saponification index | 185.8 | 185.3 | 188.5 | 191.2 | 185.0 | 180.9 | 180.3 | 180.8 | 184.4 | 3.7 | Acidity index | 16.4 | 16.9 | 16.4 | 16.8 | 16.5 | 15.4 | 15.2 | 15.1 | 16.1 | 0.7 | Iodine index | 91.9 | 88.8 | 84.7 | 88.7 | 88.1 | 83.3 | 83.6 | 83.9 | 87.1 | 3.3 | Peroxide index | 1.25 | 1.19 | 1.13 | 1.61 | 2.35 | 3.34 | 4.61 | 5.97 | 2.51 | 1.7 | FFA | 8.3 | 8.5 | 8.3 | 8.4 | 8.3 | 7.7 | 7.7 | 7.6 | 8.0 | 0.3 |
|
|