Extracts of <i>Fluorensia cernua</i> (L): volatile constituents and antifungal, antialgal, and antitermite bioactivities

TitleExtracts of Fluorensia cernua (L): volatile constituents and antifungal, antialgal, and antitermite bioactivities
Publication TypeJournal Article
Year of Publication2001
AuthorsTellez M.R., Estell R.E., Fredrickson E.L., Powell J.E., Wedge D.E., Schrader K., Kobaisy M.M.
JournalJournal of Chemical Ecology
Date PublishedNovember 1, 2001
ARIS Log Number116727
AbstractThe chemical components of 36 kg of tarbush (Flourensia cernua) leaves were fractionated by extracting successively with hexanes, diethyl ether, and ethanol. Volatile profiles of each fraction were identified using GCMS. The hexanes fraction was found to contain mostly monoterpenoids while the ethanol fraction volatiles were primarily sesquiterpenoids. The crude fractions were tested for activity against fungi, algae, and termites. Application of as little as 1 æg of the essential oil obtained from the hexanes fraction was sufficient to provide visible antifungal activity in bioautography assays. The diethyl ether fraction showed selective activity against the cyanobacterium responsible for 2-methylisoborneol induced off- flavor sometimes associated with catfish farming operations. All three fractions exhibited a high degree of antitermite activity.