Many oxygenated fatty acids are bioactive compounds. Nocardia cholesterolicum and Flavobacterium DS5 convert oleic acid to 10 hydroxy stearic acid and linoleic acid to 10-hydroxy-12(Z)-octadecanoic acid. Pseudomonas aeruginosa PR3 converts oleic acid to the new compounds, 7,10-dihydroxy-8(E)-octadecenoic acid (DOD) through 10-hydroxy-8-octadecenoic acid, and racinoleic acid to 7,10,12-trihydrox...

An isomeric mixture of linoleic acid hydro peroxides, 13-hydroperoxy-cis9 trans-II-octadecadienoic acid (79%) a~d 9-hydroperoxy-eis-12,trans-IO-octadecadienoic acid (21 %), was decomposed homolytically by Fe(I!) in an ethanolwater solution. In one series of experiments, the hydroperoxides were decomposed by catalytic concentrations of Fe (II). The 10.5 M Fe(III) used to initiate the decompositi...

The hydrogenation of all the methylene-interrupted cis,cis-octadecadienoic acids was examined using pure cultures of six rumen bacteria able to hydrogenate linoleic acid to stearic acid or its immediate precursor, trans-11-octadecenoic acid, after first conjugating the linoleic acid to cis,trans-9,11-octadecadienoic acid. Only the delta 14-cis,17-cis-isomer was not hydrogenated by at least one ...

Leptospira interrogans serotype patoc exhibited an increasing growth response when cultivated in media containing from 50 to 250 ,ug of sodium oleate per ml. Leptospiral growth in the presence of 250 ,ug of sodium oleate per ml was as good as that in the basal medium which contained 700 Mig of oleic acid (in Tween 80) per ml. When positional isomers of oleic acid (9-octadecenoic acid) were pres...

The chemical composition of fatty acid methyl esters (FAMEs) from seeds of S. thymbra and S. cuneifolia were analyzed by GC/MS. 7 FAMEs were identified from the seeds of S. thymbra mainly as 9-octadecenoic acid methyl ester (43.9%), hexadecanoic acid methyl ester (11.4%), 9,12,15-octadecatrienoic acid methyl ester (Z,Z,Z) (30.2%), and octadecanoic acid methyl ester (14.1%), while from the seed ...

12,13-Epoxy-ll-hydroxy-9-octadecenoic Acid, 4,5-Epoxy-N-acetylsphingosine, Human Liver Microsomes Transformation of 12,13-epoxy-ll-hydroxy-9-octadecenoic acid and 4,5-epoxy-N-acetylsphingosine by addition of porcine liver homogenate and human liver microsomes, respec­ tively was investigated. Both epoxides were converted to corresponding dioles by porcine liver homogenate, but not by human live...

Partially purified protein extracts from maize (Zea mays L.) embryos, whether treated or not with abscisic acid (ABA), were incubated with linoleic acid (LA) and 1-[(14)C]LA. The resulting LA metabolites were monitored by high performance liquid chromatography with a radioactivity detector and identified by gas chromatography-mass spectrometry. alpha- and gamma-ketol metabolites arising from 9-...

Bu çalışma endemik Amanos Sığırkuyruğu ile Belen sığırkuyruğunun uçucu bileşenlerini ortaya çıkarmak için bitki eksratte edilmiş ve ultrasonic banyo yapılarak GS-MS analizi yapılmıştır. GC-MS kütüphanesinde sonuçlarına göre bileşenler kıyaslandığında, Sığırkuyruğunda kimyasal bileşenlerinin benzerlik ilişkileri toplam on üç bileşen bulunmuştur. ise dört tespit edildi. bileşenlerin biyoaktivitel...

In microorganisms hydroxy fatty acids are produced from the biotransformation of unsaturated fatty acids. Such compounds belong to a class of oxylipins which are reported to perform a variety of biological functions such as anti-inflammatory or cytotoxic activity. These compounds have been found in rice and timothy plants after being infected by specific fungus. When grown in submerged culture ...