Table 2.

Antioxidant effects on canola oil measured by Rancimat under 120 °C

Sample	Concentration (ppm)	Induction period (h)
Control	0	1.99 ± 0.05g
Canola oil + TBHQ*	1000	16.89 ± 0.03a
Canola oil + PFE**	200	3.32 ± 0.08f
Canola oil + PFE	400	4.56 ± 0.04e
Canola oil + PFE	600	8.32 ± 0.01d
Canola oil + PFE	800	9.89 ± 0.06c
Canola oil + PFE	1000	13.34 ± 0.11b

*TBHQ Tert-butyl hydroquinone, **PFE Proposis farcta extract

^a–gDifferent lowercase letters indicate significant differences (P < 0.05)