Researchers from Aurea Biolabs Pvt Ltd, India, and Aurous HealthCare Research and Development India Private Limited, has formulated a novel refresher drink made of a natural matrix that contains spice extracts of turmeric, ginger, black pepper and green tea. In addition to the spice component, this drink contained sucrose, citric acid and sodium chloride. The antioxidant activity of such a drink was determined by an oxygen radical absorbing capacity (ORAC) assay, utilizing a trolox equivalence method. A trolox standard curve was established.
Determinations of the antioxidant capacity of this refresher drink involved five samples of 4 different levels used. Results showed trolox equivalency values of various concentration of refresher drink are 0, 0.289 ± 0.02, 0.564 ± 0.05 and 0.827 ± 0.06 μg/ml for the concentrations of 0, 125, 250 and 500 μg/ml, respectively. It is proved that the antioxidant property of refresher drink is highly dose dependent. The high ORAC value of this drink indicates that it can be considered as an oxidative stress reliever, with favorable effects or human health.
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Antioxidant capacity of a novel refresher drink
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