Invasive Species Compendium

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Abstract

Antioxidant constituents from the fruit hulls of mangosteen (Garcinia mangostana L.) originating in Vietnam.

Abstract

In the course of a search for natural antioxidants, the methanol extract of the fruit hulls of mangosteen (Garcinia mangostana L.) originating in Vietnam was found to exhibit a potent radical scavenging effect. By monitoring this radical scavenging effect, two xanthones, α- and γ-mangostins, were isolated, together with (-)-epicatechin and procyanidins A-2 and B-2, as active principles. The antioxidant activity of the two xanthones was measured by the ferric thiocyanate method; γ-mangostin was more active than butylhydroxyanisol and α-tocopherol.