Fat acid composition of linseed oil from different varieties of flaxseed

Painter, Edgar Page; Nesbitt, L. L.

doi:10.1007/bf02593137

Cited by 24 publications

(4 citation statements)

References 5 publications

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“…E XPERIMENTS in California have indicated that flax (Linum usitatissimum, L.) grown under cool climatic conditions at Pescadero produces oil with a higher degree of unsaturation than when grown under higher temperatures at Davis. Similar results have been obtained with flax in other flax growing areas ( 8) as well as with other oil crops-sunflowers ( 2), soybeans ( 3), cotton ( 6), and safflower (7). While temperature affects seed oil quality in the same way in a number of oil crops, the stage of plant development at which these effects attain their maximum expression is not known.…”

supporting

confidence: 72%

Effect of Temperatures During Plant Development on the Fatty Acid Composition of Linseed Oil¹

Yermanos¹,

Goodin

1965

Agronomy Journal

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Synopsis Differential temperatures (constant 50°, 60°, 70°, and 80° F.) were applied before and after initiation of floral primordia in two varieties of seed flax. Pre‐flower treatments caused significant differences in vegetative development but did not affect fatty acid composition of the seed oil of either variety. Post‐flower‐temperature affected fatty acid composition of the oil drastically. Linolenic acid decreased and oleic acid increased as post‐flowering temperatures increased from 50°to 80° F. Linoleic acid was not affected significantly.

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confidence: 72%

Effect of Temperatures During Plant Development on the Fatty Acid Composition of Linseed Oil¹

Yermanos¹,

Goodin

1965

Agronomy Journal

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“…The plant oils, we compared in the present study, were abundant in either linoleic acid or linolenic acid. In safflower oil the linoleic acid content ranges from 60 to 81% (Smith 1996) while in linseed oil the linolenic acid is present in amounts ranging from 46 to 66% (Painter & Nesbitt 1943; Edward & Robb 1951). It would be interesting to observe the physiological changes in fish arising from feeding on n‐3 polyunsaturated fatty acid (PUFA)‐deficient safflower oil.…”

Section: Introductionmentioning

confidence: 99%

Antioxidant and immune defences of rainbow trout (Oncorhynchus mykiss) offered plant oils differing in fatty acid profiles from early stages

Kiron

Thawonsuwan

Panigrahi

et al. 2011

Aquaculture Nutrition

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The antioxidant defence and immune response of rainbow trout (Oncorhynchus mykiss) that had received plant oils, rich in either n‐3 polyunsaturated fatty acids (PUFA; linseed oil) or n‐6 PUFA (safflower oil) was evaluated upon antigen exposure. The fish employed in this study had been offered the diets for 18 months from the first feeding. Rainbow trout from each group were injected intraperitoneally with formalin‐killed bacteria (Aeromonas hydrophila) or were sham‐injected and observations were made 24 h later. Though the fish fed safflower oil seemed to be under relatively greater oxidative stress, the antioxidant defences (superoxide dismutase, catalase, glutathione peroxidase) were as effective as in those fed linseed oil. The humoral (alternate complement activity and lysozyme activity) and cellular (phagocytic activity and lymphocyte proliferation) immune responses were not significantly affected by the oil offered. With the exception of reactive oxygen production that was significantly greater in the linseed oil fed fish, both groups did not differ greatly in their immune responses after antigen exposure. Thus, fish fed safflower oil that was deficient in n‐3 PUFA was able to sustain most of the critical responses similar to those fed linseed oil suggesting that plant oils of both fatty acid categories were effective for this fresh water fish.

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“…Analyses of the oils showing a fat acid unusually high or low have been repeated so the extremes can hardly be due to precision. In connection with varietal differences in composition (5) it may be of interest that the highest linolenic acid and lowest linoleic acids have been found in oils from B. Golden (6).…”

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Some relationships between fat acid composition and the iodine number of linseed oil

Painter¹

1944

Oil Soap

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Summary RESULTS of analysis of 148 linseed oil samples are summarized. When the constituent fat acid glycerides are plotted against the iodine number the points fall close to a straight line in the cases of saturated acids, oleic acid and linolenic acid. In the case of linoleic acid, however, the points were so dispersed that no significant relationship to the iodine number was apparent. Correlation coefficients between iodine number and the fat acids were: Linolenic, +.97: oleic, −.94; saturated, −.80; and linoleic. −.27. It is possible to estimate within limits the amount of linolenic, oleic and saturated acids in linseed oil by applying equations where the iodine number is the only variable. In the case of linoleic acid, however, the standard deviation along the regression line is almost equal to the standard deviation from the mean. Real differences in composition which are independent of the iodine number exist, however, because the dispersion of the points along the regression lines is greater than would result from errors of precision in the analyses.

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Fat acid composition of linseed oil from different varieties of flaxseed

Cited by 24 publications

References 5 publications

Effect of Temperatures During Plant Development on the Fatty Acid Composition of Linseed Oil¹

Effect of Temperatures During Plant Development on the Fatty Acid Composition of Linseed Oil¹

Antioxidant and immune defences of rainbow trout (Oncorhynchus mykiss) offered plant oils differing in fatty acid profiles from early stages

Some relationships between fat acid composition and the iodine number of linseed oil

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Fat acid composition of linseed oil from different varieties of flaxseed

Cited by 24 publications

References 5 publications

Effect of Temperatures During Plant Development on the Fatty Acid Composition of Linseed Oil1

Effect of Temperatures During Plant Development on the Fatty Acid Composition of Linseed Oil1

Antioxidant and immune defences of rainbow trout (Oncorhynchus mykiss) offered plant oils differing in fatty acid profiles from early stages

Some relationships between fat acid composition and the iodine number of linseed oil

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Effect of Temperatures During Plant Development on the Fatty Acid Composition of Linseed Oil¹

Effect of Temperatures During Plant Development on the Fatty Acid Composition of Linseed Oil¹