longa rhizomes, and in the PT fraction of E. elatior leaves. Leaf extracts and fractions of A. galanga and C. longa did not show any antibacterial activity against S. aureus, M. luteus, and B. cereus. Rhizome extracts and fractions of A. galanga and C. longa had no inhibitory effect on M. luteus and S. aureus, respectively. PT fractions of E.