Functional beverage of garcinia mangostana (mangosteen) enhances plasma antioxidant capacity in healthy adults

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Abstract

This study was to investigate the absorption and antioxidant effect of a mangosteen- based functional beverage in humans. The beverage contained mangosteen, aloe vera, green tea, and multivitamins. A randomized, double-blind, placebo-controlled clinical trial was conducted with generally healthy male and female subjects between 18 and 60 years of age. Ten men and 10 women participated in this study. Participants were randomly divided into two groups, treatment and placebo group. Participants received either a daily single dose (245 mL) of the beverage or a placebo. Blood samples were collected from each participant at time points 0, 1, 2, 4, and 6 h. The plasma samples were analyzed by LC/MS for a-mangostin and vitamins B2 and B5. Results indicated that the three analytes were bioavailable, with observed Cmax at around 1 h. The antioxidant capacity measured with the oxygen radical absorbance capacity (ORAC) assay was increased with a maximum effect of 60% after 1 h, and the elevated antioxidant level lasted at least 6 h. This study demonstrated the bioavailability of a-mangostin and B vitamins from a xanthone-rich beverage and the mechanisms of the increase in plasma antioxidant may be direct effects from antioxidants, enhancement of endogenous antioxidant activity through activation of Nrf2 pathway, and synergism of the antioxidants.

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Xie, Z., Sintara, M., Chang, T., & Ou, B. (2015). Functional beverage of garcinia mangostana (mangosteen) enhances plasma antioxidant capacity in healthy adults. Food Science and Nutrition, 3(1), 32–38. https://doi.org/10.1002/fsn3.187

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