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Sterol content in sunflower seeds (Helianthus annuus L.) as affected by genotypes and environmental conditions

Roche, Jane and Alignan, Marion and Bouniols, Andrée and Cerny, Muriel and Vear, Felicity and Mouloungui, Zéphirin and Merah, Othmane Sterol content in sunflower seeds (Helianthus annuus L.) as affected by genotypes and environmental conditions. (2010) Food Chemistry, 121 (4). 990-995. ISSN 0308-8146

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Official URL: http://dx.doi.org/10.1016/j.foodchem.2010.01.036


Phytosterols play essential roles in many plant cell mechanisms. They are of industrial interest since, as part of the diet, they can reduce Low Density Lipoprotein cholesterol. An increase in plant sterol contents by improved crop varieties or crop management could help to answer industrial demands and also to develop environmentally friendly extraction methods. The aim of this study was to evaluate genotypic variability for sterol content in cultivated sunflower and effects of sowing date, in particular sowing date. Results showed large variability among a collection of sixteen sunflower inbred lines and hybrids. Total sterols varied almost twofold between extreme genotypes. A delay of sowing, giving higher temperatures during seed formation, induced a general increase in total sterol concentration by up to 35 per cent, as well as sterol composition but this varied according to genotype. These results are discussed with the aim of improving sterol content by sunflower breeding programmes.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Food Chemistry website : http://www.sciencedirect.com/science/journal/03088146
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Université Blaise Pascal - UBP (FRANCE)
Laboratory name:
Deposited On:28 May 2010 11:30

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