Bulgarian Journal of Agricultural Science
Array ( [session_started] => 1669865817 [LANGUAGE] => EN [LEPTON_SESSION] => 1 )
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CHANGES OF COMPOSITION IN TRIACYLGLYCEROLS, STEROLS AND TOCOPHEROLS OF FLAX DURING THE VEGETATION
O. Teneva, М. Zlatanov, G. Antova, M. Marcheva
Abstract: 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 - 327g.kg-1 between 21 - 35 day after flowering. In the triacylglycerol fraction the content of oleic acid decreased from 383 g.kg-1 to 322 g.kg-1 at the expense increasing of linolenic acid (from 294 to 342 g.kg-1). In sterol esters higher content of monounsaturated oleic acid was detected – from 392 g.kg-1 at 21 day after flowering to 517 g.kg-1 at 35 day after flowering. The quantity of stearic acid decreased from 167 g.kg-1 to 107 g.kg-1. The content of sterols was 4 g.kg-1 in whole period. β - Sitosterol was the main component in free (454 – 523 g.kg-1) and esterified sterols (553 – 566 g.kg-1) 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.
Keywords: fatty acids; flax seeds; sterols; tocopherols; vegetation
Date published: 2017-10-25
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