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Free Fatty Acids From The Crude Hexane Extract Of The Aerial Parts Of Heliotropium Indicum Linn. Growing In Phitsanulok, Thailand, Theeraphan Machan, Jurgen Korth, Boonsom Liawruangrath, Saisunee Liawruangrath, Apiwat Baramee, Stephen G. Pyne

Faculty of Science - Papers (Archive)

Sixteen free fatty acids from the crude hexane extract of the aerial parts of Heliotropium indicum Linn. growing in Phitsanulok, Thailand, have been identified after conversion to their methyl esters with boron trifluoride-methanol followed by quantification by GC-FID and identification by GC-MS analysis. They accounted for 95% of the chromatographable components, with 9,12-octadecadienoic acid, (39.7%), 9-octadecenoic acid (32.4%), hexadecanoic acid (14.2%) and octadecanoic acid (5.1%), as the major constituents. A small amount of 6,10,14-trimethyl-2-pentadecanone and 3,7,11,15-tetramethyl-2-hexadecen-1-ol as well as a homologous series of n-alkanes present at trace level and ranging from C₂₅ to C₃₁ was also found …