Tannin was extracted from mangosteen peel.
The optimum conditions were the extraction of the
mangosteen peel sized 20/30 mesh with the mixture
of water and 95% ethanol (1:1 v/v) at 80oC for 2
hours and the ratio of mangosteen peel to solvent of
1:10 (w/v) gave the highest content of tannin. The
crude extracted tannin was purified and the chemical
test results of the purified tannin showed that the
condensed tannin was the predominant type of tannin
in mangosteen peel