Phytochemical and Bioactivity Investigations of <i>Macfadyena unguis-cati</i> L. (<i>Bignoniaceae</i>)

Volatile and non-volatile compounds and antimicrobial activity of Mansoa difficilis (Cham.) Bureau & K. Schum: (Bignoniaceae)

“…(E)-α-Ionone, (E)-β-ionone, β-damascenone and dehydro-ar-ionene (1,16-trimethyl-1,2-dihydronaphthalene) were previously reported to occur in other species of Bignoniaceae (Macfadyena unguis-cati L.). 15 It is noteworthy that (E)-α-ionone, (E)-β-ionone and β-damascenone were only encountered in the essential oil from leaves of M. standleyi when dried for 12 h under sunlight, however, when the leaves of M. standleyi were dried at room temperature, in an air-conditioned room or in a freezer these compounds were not observed. 16 Although the garlic like-odor of the crushed leaves was easily detected, the amounts of diallyl disulfide (0.85%) and diallyl trisulfide (0.37%) were lower than those of the oils of M. alliacea 3 and M. standleyi.…”