Phytochemistry, antibacterial and antioxidant properties from Adinandra hongiaoensis and Polyspora huongiana (Theaceae)

Abstract

Adinandra hongiaoensis and Polyspora huongiana are the rare and native species found in Vietnam. Firstly, the present studies demonstrated the chemical components, antioxidant and antibacterial effects of the acetone extracts from these plants. Here, a total of 54 constituents are identified in the leaf extracts of 2 studied species using the gas chromatography/mass spectrometry (GC/MS) method. The P. huongiana extract displayed activity against 3 Staphylococcus strains, including S. saprophyticus, S. aureus ATCC 29213 and S. aureus ATCC 25923 while the A. hongiaoensis extract was not active any studied bacteria. In addition, A. hongiaoensis and P. huongiana extracts was found effective against the DPPH radical scavenger with IC50 value of 213.31 and 47.60 µg/mL respectively. Hopefully, the results of this report will provide a premise further research to apply these species in pharmaceutical product development in the future.