Changes of Composition in Triacylglycerols, Sterols and Tocopherols of Flax During the Vegetation

1 University of Plovdiv “P. Hilendarski”, Department of Chemical Technology, BG - 4000 Plovdiv, Bulgaria
2 Agricultural University of Plovdiv, BG – 4000 Plovdiv, Bulgaria


TENEVA, O., М. ZLATANOV, G. ANTOVA and M. MARCHEVA, 2014. Changes of composition in triacylglycerols, sterols and tocopherols of flax during the vegetation. Bulg. J. Agric. Sci., 20: 112-116


The changes of content and composition of flax seed fatty acids, sterols and tocopherols during vegetation in period April - July were investigated. The quantity of glyceride oil increased from 174 - between 21 - 35 day after flowering. In the triacylglycerol fraction the content of oleic acid decreased from 383 to 322 at the expense increasing of linolenic acid (from 294 to 342 In sterol esters higher content of monounsaturated oleic acid was detected – from 392 at 21 day after flowering to 517 at 35 day after flowering. The quantity of stearic acid decreased from 167 to 107 The content of sterols was 4 in whole period. β-Sitosterol was the main component in free (454 – 523 and esterified sterols (553 – 566 during vegetation, followed by campesterol. The percentage of tocopherols was highest in the first stage of development (975 mg/kg vs 898 mg/kg) in the last period.

Key words: flax seeds, vegetation, fatty acids, tocopherols, sterols

See the article as a PDF.