Antimicrobial activity of the lupane triterpene 3,6,16-trihydroxylup-20(29)-ene isolated from .

. (Combretaceae) is commonly found in the Northeast Region of Brazil and is known for several bioactivities, including antimicrobial ones. Because of increasing bacterial antibiotic resistance, natural products from several plants have been studied as putative adjuvants to antibiotic activity, including products from .