Table 3.

Estimated concentration of retinyl palmitate in fortified cooking oil of different initial PVs once they have reached their maximum PV (10 mEq O₂/kg) during storage at 30 °C ± 5 °C in a dark room.

Cooking Oil Sample	k (h−1)	ts (h)	Q0 (Vitamin A IU/g)	Qt (Vitamin A IU/g)
PO1	3.02 × 10−5	2176.51 (3 months)	45	42.1
PO2	1.25 × 10−4	492.34 (0.6 months)	45	42.3
PO3	1.90 × 10−4	67.22 (2.8 days)	45	44.4

Note: t_s represents the time that the cooking oil can be kept for storage until the cooking oil reaches 10 mEq O₂/kg, as shown in Table 2.