Tocopherols and phytosterols in sunflower seeds for the human food market

Fernández‐Cuesta, Álvaro; Nabloussi, Abdelghani; Fernández‐Martínez, José M.; Velasco, Leonardo

doi:10.3989/gya.010112

Cited by 14 publications

(15 citation statements)

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“…Kernel and oil phytosterol content averaged 3372 and 5268 mg kg −1 , respectively, with ranges of variation between 2954 and 3810 mg kg −1 kernel and between 4711 and 5976 mg kg −1 oil. These values are within the ranges of variation reported for sunflower germplasm (Ayerdi‐Gotor et al, 2007; Fernández‐Cuesta et al, 2012a, 2012b). However, maximum values found in the present study were considerably lower to those previously reported, particularly for oil phytosterol content for which maximum values of 7650 mg kg −1 (Ayerdi‐Gotor et al, 2007), 7251 mg kg −1 (Fernández‐Cuesta et al, 2012b), and 9752 mg kg −1 (Fernández‐Cuesta et al, 2012a) have been reported.…”

Section: Resultssupporting

confidence: 88%

“…Kernel phytosterol content was analyzed on two replicates per block, each of them consisting of eight randomly selected seeds. Phytosterol content was analyzed following a previously reported procedure for the analysis of free and esterified phytosterols (Fernández‐Cuesta et al, 2012a, 2012b). Gas chromatographic analysis was performed on a PerkinElmer Clarus 600 GC (PerkinElmer Inc.) equipped with a ZB‐5 capillary column (0.25 mm i.d., 30 m length, and 0.10 μm film thickness; Phenomenex).…”

Section: Methodsmentioning

confidence: 99%

“…Fernández‐Cuesta et al (2012a) reported a range of variation between 1426 and 4710 mg kg −1 seed kernel in 87 sunflower inbred lines. Fernández‐Cuesta et al (2012b) found a kernel phytosterol content between 2179 and 3555 mg kg −1 seed kernel in confectionery sunflower landraces. After oil extraction, phytosterols are generally the predominant compounds in the unsaponifiable fractions of vegetable oils (Kamal‐Eldin, 2005).…”

mentioning

confidence: 98%

“…Verleyen et al (2002) reported maximum levels of 160 g kg −1 campesterol and 150 g kg −1 Δ 5 ‐avenasterol. Fernández‐Cuesta et al (2012b) reported a maximum concentration of 269 g kg −1 Δ 7 ‐stigmastenol.…”

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confidence: 99%

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Genetic Variation and Genotype × Environment Interactions for Seed Phytosterols in Sunflower

et al. 2013

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Phytosterols are important dietary components. This research was aimed at estimating genetic variation and genotype × environment interactions for phytosterol content and profile in sunflower (Helianthus annuus L.). Twenty‐two commercial hybrids were grown in six locations in southern Spain. The effect of genotypes was significant for phytosterol content and concentration of most phytosterols. Genotype × location interaction was significant for the concentration of campesterol, stigmasterol, Δ7‐stigmastenol, and Δ7‐avenasterol. Estimates of broad‐sense heritability were high (0.85 to 0.97) for phytosterol content and concentration of major phytosterols. These results suggest the feasibility of selecting for both phytosterol content and profile in sunflower.

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Section: Resultssupporting

confidence: 88%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 98%

mentioning

confidence: 99%

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Genetic Variation and Genotype × Environment Interactions for Seed Phytosterols in Sunflower

et al. 2013

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“…Merah, et al (2012) reported a variation from 1523 to 2490 mg kg −1 seed (whole achene) in a population of recombinant inbred lines. Other studies based on the analysis of seed kernels have reported ranges of variation from 1426 to 4710 mg kg −1 kernel in 87 sunflower inbred lines (Fernández-Cuesta, et al, 2012a), from 2,179 to 3555 mg kg −1 kernel in 12 confectionery landraces (Fernández-Cuesta, et al, 2012b), from 2954 to 3810 mg kg −1 kernel in 22 commercial hybrids (Velasco, et al, 2013), from 1319 to 5119 mg kg −1 kernel in 985 accessions of a world collection , and from 1344.0 to 2942.5 mg kg −1 kernel in a collection of 137 Spanish landraces of confectionery sunflower .…”

Section: Variability For Seed Phytosterol Content In Sunflower Germplasmmentioning

confidence: 97%

New sunflower seeds with high contents of phytosterols

Velasco

Fernández‐Cuesta

Fernández‐Martínez

2014

OCL

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-Dietary phytosterols have a positive nutritional impact because they contribute to reduce cholesterol levels in blood. Accordingly, foods rich in phytosterols are required in a healthy diet. Vegetable oils are the richest source of phytosterols in the diet, though sunflower oil has lower phytosterol content than other seed oils such as rapeseed and corn. Increasing phytosterol content in sunflower oil requires optimizing first selection procedures. In this way, the development of accurate methods for analyzing phytosterol content in seeds instead of oils has opened up recently the way for large-scale screening for this trait. Large variability for seed phytosterol content has been identified in sunflower germplasm, from which we have developed a line, IASP-18, with about twofold seed phytosterol content than conventional sunflower. The trait is expressed across environments. Genetic studies are underway to characterize its inheritance and assess the feasibility of introgressing genes for high phytosterol content into elite sunflower germplasm.

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Characterization of press and solvent extraction oils from new sunflower seeds with modified phytosterol compositions

García-González

Velasco

et al. 2020

J Sci Food Agric

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BACKGROUND Phytosterols are plant components with health benefits. Oleaginous seed hybridization can be relevant to increase phytosterols in diet through enriched oils. Sunflower oils obtained by press (PO) and subsequent solvent extraction (SO) from three types of phytosterol‐enriched seeds were characterized. One presented a phytosterol composition of common sunflower seeds, whereas the other two were rich in campesterol and Δ7‐stigmasterol, respectively. Seeds from two different harvests, 2015 and 2017, were studied. RESULTS The type of extraction did not have a significant influence on the fatty acid composition. However, considerable differences were found between harvests. The oleic‐to‐linoleic ratio decreased from 0.71 in 2015 to 0.47 in 2017. The phytosterol compositions of the PO were similar to their SO homologues and no substantial differences were found between harvests. However, the SO presented higher total contents of phytosterols (4849–9249 mg kg−1) than the PO (2839–5284 mg kg−1) and the oils of 2017 showed higher levels (4476–9249 mg kg−1) compared to 2015 (2839–5754 mg kg−1). Unlike phytosterols, no significant differences were found in the tocopherol contents between the PO and SO or between harvests. The PO met Codex specifications for edible oils, except for trace metals, with concentrations close or above the limits for Cu, Fe, Pb and As. CONCLUSIONS Differences in environmental and/or cultivation conditions between harvests may result in substantial differences in the fatty acid composition and phytosterol content in oils from the new sunflower seeds. Rigorous measures and controls to avoid trace metal contamination are required so that the PO can be considered as edible virgin oils. © 2020 Society of Chemical Industry

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Tocopherols and phytosterols in sunflower seeds for the human food market

Cited by 14 publications

References 10 publications

Genetic Variation and Genotype × Environment Interactions for Seed Phytosterols in Sunflower

Genetic Variation and Genotype × Environment Interactions for Seed Phytosterols in Sunflower

New sunflower seeds with high contents of phytosterols

Characterization of press and solvent extraction oils from new sunflower seeds with modified phytosterol compositions

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