Genetic and environmental variation for tocopherol content and composition in sunflower commercial hybrids

Velasco, Leonardo; Fernández‐Martínez, José M.; García-Ruiz, Rafael; Domı́nguez, J.

doi:10.1017/s0021859602002678

Cited by 64 publications

(67 citation statements)

References 8 publications

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“…This is in agreement with a previous study on sunflower commercial hybrids (Velasco et al, 2002). Genotype 3 location interaction did not influence the proportion of α-and β-tocopherol, for which the location and to a lesser extent the genotype effect were predominant.…”

Section: Analysis Of Variancesupporting

confidence: 93%

Tocopherols and phytosterols in sunflower seeds for the human food market

Fernández‐Cuesta¹,

Nabloussi²,

Fernández‐Martínez³

et al. 2012

Grasas y Aceites

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321significantly greater average tocopherol and phytosterol contents, though confectionery-type cultivars with levels of tocopherols and phytosterols similar to the best oilseed-type cultivars were identified. The large variations in kernel tocopherol and phytosterol contents found in this research suggest that there is room for breeding for increased levels of these compounds in order to develop healthier sunflower cultivars for the human food market.

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Section: Analysis Of Variancesupporting

confidence: 93%

Tocopherols and phytosterols in sunflower seeds for the human food market

Fernández‐Cuesta¹,

Nabloussi²,

Fernández‐Martínez³

et al. 2012

Grasas y Aceites

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“…Differences in agronomic traits were observed among all of the genotypes (Table S2). Variation in the contents of Toc and its isomers has been previously reported in oilseed crops (Dolde et al, 1999;Rocheford et al, 2002;Velasco et al, 2002). In our study, a significant amount of genotypic variation was observed in seed T-Toc, Toc isomers, and Toc composition.…”

Section: Variation In Toc Contents Of the Five Genotypessupporting

confidence: 77%

Response of seed tocopherols in oilseed rape to nitrogen fertilizer sources and application rates

Hussain

Jiang

Jabeen

et al. 2014

J. Zhejiang Univ. Sci. B

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Tocopherols (Tocs) are vital scavengers of reactive oxygen species (ROS) and important seed oil quality indicators. Nitrogen (N) is one of the most important fertilizers in promoting biomass and grain yield in crop production. However, the effect of different sources and application rates of N on seed Toc contents in oilseed rape is poorly understood. In this study, pot trials were conducted to evaluate the effect of two sources of N fertilizer (urea and ammonium nitrate). Each source was applied to five oilseed rape genotypes (Zheshuang 72, Jiu-Er-1358, Zheshuang 758, Shiralee, and Pakola) at three different application rates (0.41 g/pot (N1), 0.81 g/pot (N2), and 1.20 g/pot (N3)). Results indicated that urea increased α-, γ-, and total Toc (T-Toc) more than did ammonium nitrate. N3 was proven as the most efficient application rate, which yielded high contents of γ-Toc and T-Toc. Highly significant correlations were observed between Toc isomers, T-Toc, and α-/γ-Toc ratio. These results clearly demonstrate that N sources and application rates significantly affect seed Toc contents in oilseed rape.

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“…Data from Fernández-Moya et al, 2006;Ghazani and Marangoni, 2013;Gunstone, 2011;Marmesat et al, 2008;O'Brien, 2009; ND = Non Detectable; SO = Sunflower Oil; HOSO: High Oleic Sunflower Oil, MOSO = Mid Oleic Sunflower Oil; HSHOSO = High Stearic High Oleic Sunflower Oil; HPHOSO = High Palmitic High Oleic Sunflower Oil. Gotor et al, 2007Gotor et al, , 2014Gunstone, 2011;Marmesat et al, 2008;Velasco et al, 2002Velasco et al, , 2004; ND = Non Detectable; SO = Sunflower Oil; HOSO: High Oleic Sunflower Oil, MOSO = Mid Oleic Sunflower Oil; HPHOSO = High Palmitic High Oleic Sunflower Oil.…”

Section: Introductionmentioning

confidence: 99%

Effects of refining process on sunflower oil minor components: a review

Gotor

Rhazi

2016

OCL

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-Sunflower oil is well known because of its diversity of fatty acids profiles which allow different uses (food: dressing salads, margarines; nonfood: agrofuel, lubricants). Besides, crude oil contains high amounts of desirable minor components (tocopherols, phytosterols, polyphenols, phospholipids. . . ) that present important nutritional features with a positive impact on human health. The different steps of the refining process have as main objective to remove contaminants and other compounds that could hamper the continuity of the process or alter oil during storage. An indirect consequence of this treatment used to preserve food safety is that micronutriments of interest are also partially eliminated reducing the nutritional quality of the oil. This review describes in the first part the chemical composition of sunflower oil focusing on desirable and undesirable components. In the second part the refining process is detailed following the losses of micronutriments at each step of the process and the elimination of unwanted compounds. Keywords:Sunflower oil / minor components / tocopherols / sterols / refining Résumé -Effets du procédé de raffinage sur les composants mineurs de l'huile de tournesol : revue. L'huile de tournesol est bien connue pour la diversité de ses profils d'acides gras qui permettent des usages variés (alimentaireshuile de table et margarines -ou non alimentaires -agrocarburants et lubrifiants). En outre, l'huile brute contient aussi de grandes quantités de composés mineurs souhaitables (tocophérols, phytostérols, polyphénols, phospholipides. . . ) aux caractéristiques nutritionnelles importantes et à impact positif sur la santé humaine. Les différentes étapes du raffinage ont pour principal objectif d'éliminer les contaminants et les composants susceptibles d'entraver la suite du process ou de provoquer une altération de l'huile au stockage. La conséquence indirecte de ce traitement destiné à préserver la sécurité alimentaire est que les micronutriments d'intérêt sont partiellement éliminés réduisant ainsi la qualité nutritionnelle de l'huile. Dans une première partie, cette revue décrit la composition chimique de l'huile de tournesol en distinguant les composés recherchés et indésirables. La seconde partie examine le procédé de raffinage en suivant les pertes de micronutriments à chaque étape du procès ainsi que l'élimination des produits indésirables.

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Genetic and environmental variation for tocopherol content and composition in sunflower commercial hybrids

Cited by 64 publications

References 8 publications

Tocopherols and phytosterols in sunflower seeds for the human food market

Tocopherols and phytosterols in sunflower seeds for the human food market

Response of seed tocopherols in oilseed rape to nitrogen fertilizer sources and application rates

Effects of refining process on sunflower oil minor components: a review

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