Genotype and growing location effects on phytosterols in canola oil

Hamama, Anwar A.; Bhardwaj, Harbans L.; Starner, D. E.

doi:10.1007/s11746-003-0829-3

Cited by 64 publications

(67 citation statements)

References 16 publications

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“…It also contained 0.5~1.1% phytosterols which are consisted of 55~58% β-sitosterol, 20~29% campesteol, 5~13% brassicasterol and <5% stigmasterol (Hamama et al 2003). Similar results were observed in this study where γ-tocopherol was found to be a major tocopherol (over 80%), and β-sitosterol (over 55%) as a major phytosterol in eight Korean rapeseed varieties (Table 5).…”

Section: Resultssupporting

confidence: 85%

“…Tocopherols have been recognized as a classic free radical scavenger with chain-breaking properties and are one of the most important fat-soluble antioxidants in biological systems (Prabhudas et al 2000;Alpaslan & Gunduz 2000). Rapeseed oil commonly contains about 0.5~1.1% phytosterols which are consisted of 55~58% sitosterol, 20~29% campesteol, 5~13% brassicasterol and <5% stigmasterol (Hamama et al 2003). Phytosterols are minor constituents of vegetable oils, cereals seed, nuts, and fruits, and their concentrations vary according to plant species (Ostlund 2007).…”

Section: Introductionmentioning

confidence: 99%

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Variety x Location Interaction on Oil, Fatty acids, Tocopherols and Phytosterols in Korean Rapeseed (Brassica napus L.)

Piao¹,

Choi²,

Kim³

et al. 2013

Plant Breed. Biotech.

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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ABSTRACT Rapeseeds have many health benefits because its oil is rich in polyunsaturated and monounsaturated fatty acids, tocopherols and phytosterols. The objective of this research was to examine a possible genetic variation of oil, fatty acids, tocopherols and phytosterols in eight rapeseed varieties and the effect of locations on expression of those chemical compounds. In this study, effects of variety x location interaction for palmitic, stearic, oleic, linoleic, linolenic, eicogenic and erucic contents were found to be significant while that of oil content was not. For oil content, variation between the two locations was much higher than all other factors. Variation among varieties was the major source of variation in most fatty acids. Variation between two locations was much less for tocopherols and phytosterols than that for oil and fatty acids. Instead, variation in residual effect was much higher in tocopherols and phytosterols demanding more number of replication to achieve same level of statistical precision as oil and fatty acids. Correlation analyses confirmed that some of the chemical compounds can be a target for indirect selection.

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Section: Resultssupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Variety x Location Interaction on Oil, Fatty acids, Tocopherols and Phytosterols in Korean Rapeseed (Brassica napus L.)

Piao¹,

Choi²,

Kim³

et al. 2013

Plant Breed. Biotech.

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“…Increased phytosterol content in oilseed rape could constitute an added value to oil and its derivatives. In the two populations of winter oilseed rape studied the phytosterol content of each turned out to be higher than in the work of Hamama et al (2003), although the corresponding compounds were all in the similar propotion. Amar et al (2008a) reported a variation in total phytosterol content ranging from 2570 to 4150 mg/kg seed for three diff erent doubled haploid populations of winter oilseed rape tested in fi eld experiments.…”

Section: Phytosterol Contentmentioning

confidence: 59%

“…Among these, oilseed rape has been identifi ed as the one with the highest content (Amar et al, 2008a). In Brassica napus a large part of phytosterols comprises β-sitosterol (45-58%) and campesterol (25-39%), followed by brassicasterol and avenasterol, with stigmasterol occurring in small quantities (Hamama et al, 2003;Nogala-Kałucka et al, 2005). Increased phytosterol content in oilseed rape could constitute an added value to oil and its derivatives.…”

Section: Phytosterol Contentmentioning

confidence: 99%

“…All tocochromanols are potent lipid soluble antioxidants and, like vitamin E, are essential dietary nutrients for mammals (Mène-Saff rané and DellaPenna, 2010). All these native antioxidants, and phytosterols too, are natural nutritive compounds (Hamama et al, 2003;Wittkop et al, 2009), due to their anticholesterolemic properties. Phytosterol are found in a free form or in ester-bound forms with fatty acids or certain phenolic acids (Gül and Amar, 2006;Wąsowicz and Rudzińska, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Study of variation of tocochromanol and phytosterol contents in black and yellow seeds of Brassica napus L. doubled haploid populations

Cegielska-Taras

Nogala‐Kałucka

Szała

et al. 2016

Acta Sci Pol Technol Aliment

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Background. In the study, an analysis of tocopherols, plastochomanol-8 and phytosterols was conducted using DH lines obtained from F1 hybrids of reciprocal crosses between yellow-and black-seeded lines. Material and methods. The biological material for the study consisted of two DH populations of winter oilseed rape obtained from F1 hybrids of reciprocal crosses between two DH lines: yellow-and black-seeded. Seed color was determined using a ColorFlex spectrophotometer. Fat content was determined via pulsed NMR. The levels of tocopherols, and plastochromanol-8 are analyzed using HPLC. Phytosterol contents and composition were determined by the GC method. Results. The fat content of the black-seeded parental line was 49% and this was higher than that of the yellow-seeded parental line (44%). The fat content of DH line populations ranged from 44 to 51%. Total tocopherol content ranged from 460 to 602 mg/kg and the α-T/γ-T ratio was from 0.66 to 1.09. In parental lines H 2 -26 and Z-114 the total tocopherol content was 534 and 525 mg/kg, but the α-T/γ-T ratios were 0.81 and 1.21, respectively. The yellow-seeded parental line (Z-114) was characterized by a higher PC-8 content (81 mg/kg) than the H 2 -26 black-seeded parental line (58 mg/kg). The largest part of the total phytosterol content in seeds of both populations was β-sitosterol from 976 to 2148 mg/kg, followed by campasterol, from 636 to 1364 mg/kg, and brassicasterol from 375 to 678 mg/kg. The total tocopherol content ranged from 462 to 595 mg/kg (population HxZ) and from 460 to 602 mg/kg (population ZxH). Signifi cantly positive correlations were observed between the seed color with α-T (r = 0.38, p < 0.01), γ-T (r = -0,34, p < 0.01) and PC-8 content (r = 0.29, p < 0.01). Correlations between the seed color with total tocopherol and total phytosterol content were not noted. Conclusion. Considering the range of genetic variation among doubled haploids of two populations, selected DH lines may be good parents for further breeding programs focused on increasing the amount and improving the quality of oilseed rapeseed oil. However, further studies will also be made to determine the infl uence of the environment on bioactive compounds in rapeseed oil. Cross direction of parental DH lines: yellow-and black-seeded has some infl uence, albeit not statistically signifi cant, on the diversity of doubled haploid in their populations with regard to average fat, tocochromanol and phytosterol content.

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Oil Phytosterol Concentration in Sunflower Presents a Dilution Response with Oil Weight per Grain

Belo

Velasco

Nolasco

et al. 2019

J Americ Oil Chem Soc

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Phytosterols are plant sterols that present several benefits for human health. In crop species, such as sunflower, oil phytosterol concentration shows genetic and environmental variations. The reasons that cause such varied concentration of phytosterols in the oil are unknown. The aim of this work was to investigate the relationships between phytosterol concentration and composition and grain oil content in sunflower. Two sets of samples, with lines and hybrids grown in different environments in Argentina and Spain, were used to establish and validate the relationships between phytosterols and grain oil content. Oil phytosterol concentration decreased in both types of genotypes, lines, and hybrids, when oil content per grain increased. A dilution-like relationship accounted for 82% of the variability in phytosterol concentration among genotypes and environments. Phytosterol concentration rapidly increased with oil contents lower than 11.4 mg per grain. This relationship was observed for total phytosterols and each type of the phytosterols analyzed. With low oil per grain, phytosterol composition varied, with higher proportions of β-sitosterol and Δ 7 -stigmastenol. The relationships established in this work could serve to design breeding and crop management strategies.

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Genotype and growing location effects on phytosterols in canola oil

Cited by 64 publications

References 16 publications

Variety x Location Interaction on Oil, Fatty acids, Tocopherols and Phytosterols in Korean Rapeseed (Brassica napus L.)

Variety x Location Interaction on Oil, Fatty acids, Tocopherols and Phytosterols in Korean Rapeseed (Brassica napus L.)

Study of variation of tocochromanol and phytosterol contents in black and yellow seeds of Brassica napus L. doubled haploid populations

Oil Phytosterol Concentration in Sunflower Presents a Dilution Response with Oil Weight per Grain

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