scholarly journals Mitochondrial-membrane polar-head-group composition is influenced by diet fat

1981 ◽  
Vol 198 (1) ◽  
pp. 231-234 ◽  
Author(s):  
S M Innis ◽  
M T Clandinin
Keyword(s):  
Erucic Acid ◽  
Rapeseed Oil ◽  
Phospholipid Class ◽  
Soya Bean ◽  
Phospholipid Content ◽  
Head Group ◽  
Polar Head Group ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Low Erucic Acid

Male Sprague-Dawley rats were fed diets containing 20% (w/w) soya-bean oil, high-erucic acid rapeseed oil or low-erucic acid rapeseed oil for 0, 12 or 23 days. The type of fat present in the diet had no effect on the total phospholipid content of heart mitochondria (micrograms/mg of protein) but did influence the phospholipid class distribution. Rats fed high-erucic acid rapeseed oil for 12 or 23 days had significantly higher mitochondrial phosphatidylcholine content than rats fed soya-bean oil. Low-erucic acid rapeseed oil resulted in elevation of cardiac mitochondrial cardiolipin content after dietary treatment for 12 days. The results demonstrate in vivo that diet is a significant determinant of the phospholipid class content of subcellular membranes.

PERFORMANCE AND HISTOLOGICAL CHANGES IN TISSUES OF PIGS FED DIETS CONTAINING HIGH OR LOW ERUCIC ACID RAPESEED OILS OR SOYBEAN OIL

1975 ◽  
Vol 55 (1) ◽  
pp. 77-85 ◽  
Author(s):  
F. X. AHERNE ◽  
J. P. BOWLAND ◽  
H. VOGTMANN ◽  
R. T. HARDIN ◽  
R. G. CHRISTIAN
Keyword(s):  
Soybean Oil ◽  
Erucic Acid ◽  
Rapeseed Oil ◽  
Caloric Intake ◽  
Histological Changes ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Ad Libitum ◽  
Pig Performance ◽  
Low Erucic Acid

Three experiments were conducted to compare high (20.6%) or low (4.0%) erucic acid rapeseed oils with soybean oil when the oils were fed at a level of 15% of the diet for pigs from 25 to 90 kg liveweight. The low erucic acid rapeseed oil originated from Brassica campestris cv. Span. A fourth diet containing no supplemental oil served as a control. In one experiment, 48 crossbred pigs were fed ad libitum in groups of three pigs replicated four times. In a second experiment, 48 pigs were individually fed at a level of 80% of the daily caloric intake of the pigs in the first experiment. In a third experiment, 16 pigs in four groups were allowed continuous free-choice access to the four diets. Serial slaughter and digestibility data were obtained. The incorporation of high or low erucic acid rapeseed oil in the diets did not reduce pig performance when such diets were fed either ad libitum or at a restricted level. When given a choice of feed, pigs selected less of the high erucic acid rapeseed oil diet. When not given a choice of feed, pigs consumed as much of a high erucic acid rapeseed oil diet as they did of the other diets. Digestibility coefficients for energy, nitrogen and lipids were not significantly different for any of the three oil-containing diets. Histological examination of the heart, liver and spleen revealed no marked differences due to feeding any of the oil-based diets.

Enzymatic synthesis of trierucin from high-erucic acid rapeseed oil

1993 ◽  
Vol 70 (10) ◽  
pp. 961-964 ◽  
Author(s):  
Michael Trani ◽  
Robert Lortie ◽  
Françoise Ergan
Keyword(s):  
Erucic Acid ◽  
Enzymatic Synthesis ◽  
Rapeseed Oil ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed

Enzymic activities and gene expression of enzymes of the acyl-CoA elongase during rapeseed development

2000 ◽  
Vol 28 (6) ◽  
pp. 645-647 ◽  
Author(s):  
J. Puyaubert ◽  
B. Garbay ◽  
W. Dieryck ◽  
P. Costaglioli ◽  
T. Roscoe ◽  
...  
Keyword(s):  
Gene Expression ◽  
Erucic Acid ◽  
Seed Development ◽  
Mrna Levels ◽  
High Erucic Acid ◽  
Expression Levels ◽  
High Erucic Acid Rapeseed ◽  
Developmental Profiles ◽  
Low Erucic Acid ◽  
Maximal Expression

Enzymic activities and gene expression of oleoylCoA elongase were studied during seed development using two different rapeseed cultivars, high-erucic-acid rapeseed (HEAR) and low-erucic-acid rapeseed (LEAR). The overall elongase activities were maximal in HEAR between the fourth and eighth weeks after pollination (WAP) and absent in LEAR. The 3-ketoacyl-CoA synthase (condensing enzyme, CE) mRNA levels and the developmental profiles in the two cultivars were different since maximal expression levels were detected in HEAR and LEAR at WAP 4 and WAP 6, respectively. Anti-CE antibodies revealed two proteins of 60 and 67 kDa in both cultivars and an additional reacting protein of 57 kDa in HEAR.

THE INFLUENCE OF HIGH AND LOW ERUCIC ACID RAPESEED OILS ON THE PRODUCTIVE PERFORMANCE OF LAYING HENS AND ON THE LIPID FRACTION OF EGG YOLK

1974 ◽  
Vol 54 (3) ◽  
pp. 403-410 ◽  
Author(s):  
H. VOGTMANN ◽  
D. R. CLANDININ ◽  
R. T. HARDIN
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Soybean Oil ◽  
Erucic Acid ◽  
Rapeseed Oil ◽  
Fatty Acid Content ◽  
Egg Yolk ◽  
Productive Performance ◽  
Egg Weight ◽  
Low Erucic Acid

The effects of including 5 or 15% of high (regular) and low (Span) erucic acid rapeseed oils or soybean oil on productive performance, total lipid and fatty acid content of egg yolk, and distribution of fatty acids in egg yolk fat were studied. Feed intake varied according to the dietary energy content. However, 15% high erucic acid rapeseed oil decreased feed intake and egg production in comparison with 15% low erucic acid rapeseed oil or soybean oil. Hens receiving rations containing soybean oil produced larger eggs in the treatment than in the pre-treatment period. Five percent regular rapeseed oil in the diet led to a small increase in egg weight, whereas inclusion of 15% regular rapeseed oil in the diet led to a decrease in egg weight. Diets containing the Span oil gave intermediate results. Although the total lipid and total fatty acid content in egg yolk remained constant, the fatty acid composition changed significantly with the experimental diets. The concentration of saturated fatty acids in eggs produced by hens fed diets containing the regular rapeseed oil or low erucic acid rapeseed oil (Span oil) decreased only to a small extent and not in proportion to the amount of these fatty acids present in the diets; but the oleic acid concentration in eggs produced by the hens fed diets containing the rapeseed oil was high. Only 0.2% of erucic acid was found in eggs when 15% regular rapeseed oil was fed to laying hens. The laying hen seems to be able to maintain the level of saturated and monounsaturated fatty acids in yolk lipids in a physiological range. The results indicate that in the laying hen, a partial degradation of erucic acid to gadoleic acid and oleic acid takes place.

Acyl-CoA elongase, a key enzyme in the development of high-erucic acid rapeseed?

2005 ◽  
Vol 107 (4) ◽  
pp. 263-267 ◽  
Author(s):  
Juliette Puyaubert ◽  
Christel Garcia ◽  
Sylvette Chevalier ◽  
Ren� Lessire
Keyword(s):  
Erucic Acid ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Key Enzyme
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