Plant Antioxidant activity Intensity of spots Cocoyam Moderate +++ Unripe plantain Moderate ++ Quercetin Strong +++ The degree of activity, determined qualitatively from the observation of the yellow colour intensity: Moderate (++), strong (+++)

Table 7: Free radical scavenging activities of the methanolic/ethanolic extracts of cocoyam and unripe plantain incorporated feeds using Rapid DPPH TLC screening.