sentences:  The leaves of velvet apple trees have been shown to contain isoarborinol methyl ether (also called cylindrin) and fatty esters of α- and β-amyrin.Both isoarborinol methyl ether and the amyrin mixture demonstrated antimicrobial activity against "Escherichia coli", "Pseudomonas aeruginosa", "Candida albicans", "Staphylococcus aureus" and "Trichophyton mentagrophytes".Anti-inflammatory and analgesic properties have also been shown for the isolated amyrin mixture.