Antioxidant capacity of plant materials and chemical compounds - in vitro evaluation

Some plant materials and chemical compounds were evaluated for their antioxidant capacity under in vitro conditions. Among the plant materials, powder of yucca bark, turmeric and oregano had highest antioxidant capacity (8–10 moles/gm), followed by that of red chilly, clove seed, ginger and cumene seeds (5–7 moles/gm). The coriander leaves, garlic and fenugreek exhibited least antioxidant activity. Among the chemical compounds, sodium sulfite, succinic acid, citric acid and uric acid showed highest antioxidant activity (7–8 moles/gm).