Journal
NATURAL PRODUCT RESEARCH
Volume 24, Issue 17, Pages 1664-1670Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786419.2010.499539
Keywords
Garcinia mangostana L; xanthone; Guttiferae; antioxidant
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The air-dried fruit hulls of Garcinia mangostana Linn. were extracted with 85% ethanol. Furthermore, a new xanthone, 1,3,6-trihydroxy-2,5-bis(3-methylbut-2-enyl)-6',6'-dimethyl-4',5'-dihydropyrano[2',3' : 7,8]xanthone, along with five known xanthones related to their antioxidant activity was purified by silica gel column chromatography and then identified using spectroscopic methods (1D and 2D NMR, MS). The antioxidant activities were evaluated using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging capability. An activity-guided isolation and purification process were used to identify the components, showing the strong DPPH radical-scavenging activity of G. mangostana.
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