Journal ArticleDOI
Influence of year and planting date on fatty acid chemistry of high oleic acid and normal peanut genotypes.
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Genotypic effects were highly significant each year, planting date influenced oil chemistry in two of three years, and the highest correlations occurred for oleic acid and linoleic acid, which was inversely related to iodine value and percentage saturation.Abstract:
The effect of an early-, mid-, or late-season planting date on the fatty acid chemistry of four high oleic acid, one mid oleic acid, and five normal oleic acid peanut (Arachis hypogaea L.) genotypes was evaluated over a three year period. Oleic acid was also compared to other fatty acids and to indices of oil quality. High-oleic genotypes included SunOleic 97R, UF98326, UF99621, and 88x1B-OLBC1-6-1-3-1-b2-B with a mean oleic acid content between 77.8 and 82.5%. Florida MDR98, a mid-oleic cultivar, was intermediate in oleic acid chemistry (59.8-68.0%). The normal oil chemistry lines (Georgia Greene, Andru93, Florunner, 86x13A-4-2-3-2-b3-B, and UF97102) had an oleic acid content between 50.0 and 59.0%. The ratio of oleic to linoleic (O/L) was 18:1 to 51:1 for high-oleic lines and 1.7:1 to 3.5:1 for normal genotypes. When analyzed as a split-split plot in time, year had a highly significant effect (P < 0.001) on the eight main fatty acids, iodine value, ratio of unsaturated to saturated fatty acids (U/S), and percentage of saturated fatty acids. Thus, data were analyzed separately by year. Although genotypic effects were highly significant each year, planting date influenced oil chemistry in two of three years. During both 1999 and 2000, 11 of 12 variables were influenced by planting date and by genotype x planting date interactions. Iodine values were approximately 75 for high-oleic lines compared to 90-95 for normal genotypes. The highest correlations occurred for oleic acid (18:1) and linoleic acid (18:2) (r = -0.996) and for oleic and palmitic (16:0) acids (r = -0.959). Oleic acid was also inversely related to iodine value (r = -0.978) and to percentage saturation (r = -0.841).read more
Citations
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Journal ArticleDOI
Seed oil content and fatty acid composition in East African sesame (Sesamum indicum L.) accessions evaluated over 3 years
Beatrice A. Were,Beatrice A. Were,A. O. Onkware,S. Gudu,Margareta Welander,Anders S. Carlsson +5 more
TL;DR: Sesame accessions with consistent oil content as well as those with low or high variation in the levels of oleic and linoleic fatty acids could be suitable for incorporation into coming breeding programs in East Africa targeting an increase in the diversity of the sesame oil quality.
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Chemometric approach to fatty acid profiles in Runner-type peanut cultivars by principal component analysis (PCA)
TL;DR: In this paper, the fatty acid profiles of commercially-grown Runner-type peanut cultivars were determined by gas-liquid chromatography and eight major fatty acids were identified in the sample set including palmitic, stearic, oleic, linoleic, arachidic, gondoic and lignoceric.
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Physicochemical Characteristics, Functional Properties, and Nutritional Benefits of Peanut Oil: A Review
TL;DR: This paper gives an overview of scientific literature available on phytochemical and functional properties of peanut oil and finds that peanut oil has found its place on the highly competitive international edible oil market.
Journal ArticleDOI
Microwave-integrated extraction of total fats and oils.
TL;DR: The peak areas of the main fatty acids extracted with MIS from olive seeds were considered as response variables and submitted to an analysis of variance in order to determine if there was a significant link between the extraction of fatty acids and the variables required in extraction procedures.
Journal ArticleDOI
Peanut oil: Compositional data
TL;DR: The major fatty acids of peanut oil acylglycerols are palmitic, oleic, and linoleic acids, and only a trace amount of linolenic fatty acid (C18:3) is present.
References
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TL;DR: In this paper, the authors described a simplified version of the method and reported the results of a study of its application to different tissues, including the efficiency of the washing procedure in terms of the removal from tissue lipides of some non-lipide substances of special biochemical interest.
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Comparison of Monounsaturated Fatty Acids and Carbohydrates for Lowering Plasma Cholesterol
TL;DR: A diet rich in monounsaturated fatty acids appears to be at least as effective in lowering plasma cholesterol as a diet low in fat and high in carbohydrate in short-term studies in which liquid diets are used and body weight is kept constant.
Journal ArticleDOI
Effect of a Diet Enriched with Monounsaturated or Polyunsaturated Fatty Acids on Levels of Low-Density and High-Density Lipoprotein Cholesterol in Healthy Women and Men
TL;DR: A mixed diets rich in monounsaturated fat was as effective as a diet rich in (n-6)polyunsaturated fat in lowering LDL cholesterol and lowered the level of HDL cholesterol slightly in men but not in women.
Journal ArticleDOI
Variability in oil quality among peanut genotypes in the Florida breeding program
TL;DR: A wider range in fatty acid composition, especially in oleic and linoleic acids, was found among these genotypes than that reported previously in the literature for the cultivated peanut.
Journal ArticleDOI
The Inheritance of High Oleic Acid in Peanut
K. M. Moore,D. A. Knauft +1 more
TL;DR: Determinisme genetique du caractere du contenu eleve en acide oleique des graines chez l'arachide selon les autorités scientifiques.