Identification and genetic characterization of a safflower mutant with a modified tocopherol profile

Velasco, Leonardo; Pérez‐Vich, Begoña; Fernández‐Martínez, José M.

doi:10.1111/j.1439-0523.2005.01150.x

Cited by 40 publications

(29 citation statements)

References 18 publications

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“…This high content in α‐tocopherol makes safflower oil an excellent dietary source of vitamin E, but confers it low thermostability for high temperature applications such as deep frying or lubrication . A safflower mutant with high concentration of γ‐tocopherol in the seeds has been developed , though the effect of tocopherol profile modification on oil oxidative stability has not been evaluated.…”

Section: Introductionmentioning

confidence: 99%

Novel safflower oil with high γ‐tocopherol content has a high oxidative stability

Fernández‐Cuesta

Velasco

Méndez

2014

Euro J Lipid Sci & Tech

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Safflower oil, either with high linoleic acid or high oleic acid content, has a tocopherol profile dominated by α‐tocopherol. Novel safflower germplasm that accumulates predominantly γ‐tocopherol in seeds instead of α‐tocopherol has been developed. The objective of this research was to evaluate the chemical properties and stability of safflower oil with high oleic acid and γ‐tocopherol contents, produced by either mechanical pressing or solvent extraction from seeds of safflower line IASC‐2. Safflower oil with high oleic acid and α‐tocopherol contents from seeds of safflower line CR‐6 was used as a control. Seeds of IASC‐2 had low oil content (22.2% compared to 39.3%), which is the result of its wild origin. Oil samples showed only slight differences in the fatty acid profile and total tocopherol content. The predominant tocopherol form, either α‐ or γ, accounted in all cases for more than 95% of total tocopherols. Solvent extracted oils had more sterols than pressed oils, with oils from IASC‐2 having higher sterol content than oils from CR‐6. Major differences were observed for oil stability, measured with Rancimat. High γ‐tocopherol pressed oil from IASC‐2 had an induction period of 66.4 h, compared to 38.0 h for high α‐tocopherol oil from CR‐6, whereas solvent extracted oil from IASC‐2 had an induction time of 121.0 h, compared to 32.0 h for oil from CR‐6. Practical applications: Safflower oil, either with high oleic or high linoleic acid contents, has been traditionally valued as a healthy edible oil. The results of the present research indicated that the nearly complete replacement of α‐tocopherol by γ‐tocopherol has a great impact on enhancing oil oxidative stability. Oils with high oxidative stability are demanded for high temperature applications such as deep frying or biolubrication. Also, extended oxidative stability is required for biofuels. According to the results of this research, the novel safflower oil with high oleic acid and high γ‐tocopherol content is more advantageous for such applications than safflower oils with high α‐tocopherol content. Chemical properties and stability of safflower oil with high oleic acid and γ‐tocopherol contents.

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Section: Introductionmentioning

confidence: 99%

Novel safflower oil with high γ‐tocopherol content has a high oxidative stability

Fernández‐Cuesta

Velasco

Méndez

2014

Euro J Lipid Sci & Tech

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“…With seeds high in oil content (27% to 37%) [4], besides minerals (Zn, Cu, Mn, and Fe), vitamins (thiamine and β-carotene) and tocopherols (α, β, and γ) [5], it produces high-quality oil which is tasteless and colorless. As the oil is similar in composition to that of sunflower (Helianthus annuus L.), it can also find extensive use in human consumption and for industrial purposes [6] [7].…”

Section: Introductionmentioning

confidence: 99%

Phytometric and Productive Characteristics of Safflower Submitted to Phosphate Fertilization in the Oxisol of the Brazilian Cerrado

Bonfim-Silva¹,

Miranda²,

Neves³

et al. 2017

AJPS

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The safflower (Carthamus tinctorius L.), in particular, has been soaring in significance as an alternative for oil and biodiesel production. In this context, the goal of this study was to assess the influence exerted by phosphate fertilization on the phytometric and productive characteristics of the safflower raised on the Oxisol of the Cerrado. The experiment was performed in a greenhouse, using pots of 3 dm ) and six replicates were included. The following variables were estimated, viz., number of leaves, plant height, and stem diameter, besides chlorophyll index (SPAD index), number of chapters and shoot dry matter. Barring the shoot dry matter and number of chapters, all the other variables were evaluated on days 30 and 45 after the plants were transplanted. Data were submitted to analysis of variance at 1%, 5% and 10% probabilities, and regression analysis, at 1% and 5% probabilities, respectively. All the variables revealed significant differences and adjustments to the linear regression model (P < 0.1), excepting the SPAD index on day 30 after the plant emergence which was adjusted to the quadratic regression model. The highest findings of 24.47 for leaf number, 34.97 cm for plant height, 3.76 mm for stem diameter, 64.76 for chlorophyll index, 5 units for the number of chapters and 3.45 g for dry shoot mass were recorded in response to the highest phosphorus dose in the experimental range (P 2 O 5 : 540 mg·dm −3

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“…The results thus obtained, suggest that for a complex trait like oil quality and/or quantity, sufficient variability can be induced by mutagenesis besides polygenic traits and induced variability can be exploited by the breeder for the genetic improvement of desirable traits in safflower. Multiple investigations were done for induction of genetic variability by using mutagenesis (Veena and Ravikumar, 2003;Velasco et al, 2005;Mozaffari and Asadi, 2006).…”

Section: Introductionmentioning

confidence: 99%

Genetic Evaluation of Earliness and Spineless Safflower Mutant Lines for Quantitative and Oil Content Criteria

Ahmed

Soliman

Amin

et al. 2019

Zagazig Journal of Agricultural Research

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This investigation was carried out at experimental and research Farm, Faculty of Agriculture, Zagazig University, Egypt during six winter seasons . The aim of this study is to evaluate earliness and spineless mutant lines of safflower. The morphological traits (earliness, number of days to maturity) were recorded for two lines of safflower, line III and line VI and their promising mutant lines. The results confirmed the stability of 8 promising mutant lines for line III, (4, 7, 9, 10, 12, 14, 17, 18) and 6 promising mutant lines for line VI, (1, 2, 5, 6, 9, 7). In the M10 generation, 9 criteria were recorded, 1plant height (cm), 2-number of branches per plant, 3-number of capitula per plant, 4-number of seeds per capitulam,5-number of seeds per plant, 6-100 seed weight (g), 7-seed weight/plant (g), 8-days to maturity, 9-oil (%). High broad sense heritability (h²) of No. of capitula per plant, 100-seed weight, seed weight per plant, days to maturity and oil content were 79.16%, 77.95%, 94.91%, 79.23% and 69.41%, respectively among line III and their mutant lines. The present study confirmed that the relationship between characters under study varied between genotypes for example, oil content slightly negative correlated with seed weight per plant and was different among genotypes (-0.2495, -0.0678 and -0.2358) for line III and line VI and for over all genotypes, respectively. These results confirmed that selection of oil content and seed weight per plant could be achieved in line VI and their mutants (-0.0678). In addition, highly positive correlation between seed weight per plant and each of No. of capitula per plant and No. of seeds per plant at line VI, was observed. These results showed the simple heritable system of days to maturity, than the spineless criteria. These promising mutant lines had 168 and 170 days to maturity of line 4 and 7 from line III and 177 and 182 days of line 2 and 5 from line VI by comparison to 180 and 188 days for control of line III and line VI, respectively. These results suggest the improvement possibility of new Egyptian varieties for cultivation of harsh and poor land desert.

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Identification and genetic characterization of a safflower mutant with a modified tocopherol profile

Cited by 40 publications

References 18 publications

Novel safflower oil with high γ‐tocopherol content has a high oxidative stability

Novel safflower oil with high γ‐tocopherol content has a high oxidative stability

Phytometric and Productive Characteristics of Safflower Submitted to Phosphate Fertilization in the Oxisol of the Brazilian Cerrado

Genetic Evaluation of Earliness and Spineless Safflower Mutant Lines for Quantitative and Oil Content Criteria

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