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Tag Archives: Antioxidants

Phytochemicals in Leaves and Roots of Selected Kenyan Orange Fleshed Sweetpotato (OFSP) Varieties

Abstract: This study reports the inherent phytochemicals contents in leaves and roots of nine sweetpotato varieties from Kenya. Results indicated that vitamin C content varied significantly (P<0.05) among the sweetpotato varieties regardless of the plant part, leaves having significantly (P<0.05) higher levels than in the roots. Total flavonoids and phenolic …

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Enhancing Antioxidants: Sweet Potato Ingredients

The article describes tests conducted on sweet potato flour and sweet potato juice concentrate, showing that sweet potato ingredients are good sources of phytochemicals. Testing also shows that sweet potato ingredients help stabilize and enhance the phytochemicals in other food ingredients in blends. Finally, sensory evaluationsfound that sweet potato flours can contribute to appealing applications including baked …

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Effects of Organic and Mineral Fertilizers on total antioxidant, polyphenolic and carotenoid contents of Orange fleshed sweetpotato tubers

A field study was conducted to determine the effect of organic and mineral-based fertilizers on phytochemical contents in the tubers of an orange fleshed sweetpotato variety (TIB-440060). Treatments were arranged in a split plot design with three replicates. Tubers harvested have been studied for their total antioxidant contents (TAC), total …

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Assessment of the Antioxidant Potential of Sweetpotato Peel Extract in Controlling Rancidity

Sweetpotato peels (SPP) are reported to be rich in phenolic compounds (Zhan, 1997), but are often disposed as waste or used as animal feed after processing. The objective of this study was to screen the phytochemical constituents, determine the antioxidant activity of the peels of 5 sweetpotato varieties and the …

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