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Fatty Acid Composition in Oil of Recent Rapeseed Hybrids and 00-Cultivars (CROSBI ID 147384)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Pospišil, Milan ; Škevin, Dubravka ; Mustapić, Zvonko ; Neđeral Nakić, Sandra ; Butorac, Jasminka ; Matijević, Dunja Fatty Acid Composition in Oil of Recent Rapeseed Hybrids and 00-Cultivars // ACS - Agriculturae conspectus scientificus, 72 (2007), 3; 187-193

Podaci o odgovornosti

Pospišil, Milan ; Škevin, Dubravka ; Mustapić, Zvonko ; Neđeral Nakić, Sandra ; Butorac, Jasminka ; Matijević, Dunja

engleski

Fatty Acid Composition in Oil of Recent Rapeseed Hybrids and 00-Cultivars

Fatty acid composition in oil of seven new hybrids (Artus, Baldur, Exact, Executive, Extra, RG 9908, RG 9909) and eight 00-cultivars (Aviso, Bristol, Canary, Dexter, Ella, Kosto, Navajo, Royal) of rapeseed was investigated in the period 2003-2005. The experiments were placed on the experimental field of the Faculty of Agriculture in Zagreb. Fatty acid composition was determined by gas chromatography of their methyl esters, and the oil iodine number was calculated as well. The studied new rapeseed hybrids and 00-cultivars contained no erucic acid or it was present far below 2%. The average content of oleic acid was 61, 88± ; 2, 64% in hybrids and 62.54 3, 90% in 00-cultivars, the content of linoleic acid was 20.52 1.49% and 19.57 2.51%, the content of linolenic acid was 8.39 1, 50% and 7.92 2, 12%, the content of palmitic acid was 5, 13± ; 0, 48% and 5.50 0.51%, and the content of stearic acid was 1.48 0.16% and 1.58 0.19%, respectively. This ratio of fatty acids confirms the high nutritive quality of rapeseed oil. The iodine value was 112 2 in oil from hybrids and 110 4 in oil from 00-cultivars. In both investigated groups there were no differences in fatty acid composition which could influence the quality and stability of rapeseed oil. The average values in oils obtained from hybrids as well as from 00-cultivars are inside the data prescribed in law regulations. Although, there were several samples in which oleic and palmitic acid contents were above and linoleic and linolenic acid contents (as well as the iodine values) below the limiting values, what ought to be incorporated into the revision of present regulations on vegetable oils. Fatty acid composition, both inside hybrids and 00-cultivars, was greatly influenced by weather conditions. In the year with higher mean monthly air temperatures and less precipitation during May and June compared to average long-term weather conditions for these months, oil contained more oleic and less linoleic and linolenic acid.

rapeseed; hybrids; 00-cultivars; fatty acid composition

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Podaci o izdanju

72 (3)

2007.

187-193

objavljeno

1331-7768

Povezanost rada

Poljoprivreda (agronomija)

Indeksiranost