XANTHONES FROM PROPOLIS OF TETRIGONA IRIDIPENNIS STINGLESS BEE COLLECTED IN BINH DINH PROVINCE

Abstract

Propolis is a beehive product containing plant resin and beeswax, that is used for protecting the
beehive from disease pathogen. Propolis possesses wide range of biological and pharmacological
properties. The chemical constituents of propolis are quite diverse and propolis chemistry depends on
the geographical origin, plant species, and bee species. In our investigation, four xanthones including
cochinchinone A (1), cratoxylumxanthone B (2), cochinchinone K (3) and γ-mangostin (4) were isolated
from stingless bee Tetrigona irridipennis propolis collected in Binhdinh province. Their chemical
structures were elucidated by NMR, MS spectral analysis and comparison with reported literatures.
Our chemical study suggested that Cratoxylum cochinchinense is one of plant sources for propolis of
stingless bee Tetrigona irridipennis in Binhdinh province