Evaluation of biohydrogenation rate of canola vs. soya bean seeds as unsaturated fatty acids sources for ruminants in situ

2015 ◽  
Vol 100 (2) ◽  
pp. 211-216
Author(s):  
S. Pashaei ◽  
T. Ghoorchi ◽  
A. Yamchi
2014 ◽  
Vol 16 (3) ◽  
pp. 1507 ◽  
Author(s):  
Derek R. Vardon ◽  
Brajendra K. Sharma ◽  
Humberto Jaramillo ◽  
Dongwook Kim ◽  
Jong Kwon Choe ◽  
...  

2008 ◽  
Vol 88 (2) ◽  
pp. 335-339 ◽  
Author(s):  
R. Martineau ◽  
H. V. Petit ◽  
C. Benchaar ◽  
H. Lapierre ◽  
D. R. Ouellet ◽  
...  

The objective of this study was to compare the effects of two ionophores, lasalocid and monensin (24 mg kg-1 dry matter), on in situ biohydrogenation of C18:2 and C18:3 from whole sunflower seed and flaxseed, respectively. There were no treatment effects on biohydrogenation of C18:2. Ionophore supplementation did not affect the lag time, but monensin decreased the rate of biohydrogenation of C18:3 compared with control and lasalocid. Key words: Ionophore, monensin, lasalocid, biohydrogenation (in situ), sunflower seed, flaxseed


2003 ◽  
Vol 86 (1) ◽  
pp. 351-359 ◽  
Author(s):  
F. Enjalbert ◽  
P. Eynard ◽  
M.C. Nicot ◽  
A. Troegeler-Meynadier ◽  
C. Bayourthe ◽  
...  

2020 ◽  
Vol 17 (4) ◽  
pp. 412-422
Author(s):  
Grzegorz Lewandowski ◽  
Marlena Musik ◽  
Kornelia Malarczyk-Matusiak ◽  
Łukasz Sałaciński ◽  
Eugeniusz Milchert

A comprehensive review of recent existing methods of epoxidation of vegetable oils, unsaturated fatty acids and alkyl esters of unsaturated fatty acids has been presented. The importance of epoxidized vegetable oils and their applications in the production of polyols and polyurethanes was discussed. Interests of researchers have been mainly focused on the development of advantageous technological parameters of vegetable oils epoxidation. The epoxidations with peracetic acid or performic acid generated in situ were mainly performed in the presence of strongly acidic catalysts. The influence of process variables such as temperature, stirring speed, the molar ratio of carboxylic acid and hydrogen peroxide to the amount of ethylenic unsaturation, amount of catalyst and reaction time on the course of epoxidation has been investigated.


1971 ◽  
Vol 26 (2) ◽  
pp. 293-299 ◽  
Author(s):  
K. Černý ◽  
Maud Kordylas ◽  
F. Pospíšil ◽  
O. Švábenský ◽  
B. Zajíc

1. The winged bean (Psophocarpus palustris Desv.) has been grown successfully for several seasons, on an experimental basis, in the forest belt of Ghana, where earlier attempts to grow the soya bean had proved unsatisfactory.2. Although botanically different, the composition of the dry seeds was found to be very similar to that of the soya bean, containing 37·3% protein, 18·1% fat, 13·9 ppm thiamin and 1·8 ppm riboflavin. The oil of the seeds contained 125·9 mg tocopherol (γ + β) per 100 g. The amino acid composition of the protein was very similar to that of the soya bean, with methionine as the first-limiting amino acid. The content of unsaturated fatty acids and that of poly-unsaturated essential fatty acids were satisfactory.Active trypsin inhibitor found in the raw seeds could be destroyed satisfactorily by moist heat. No urease activity was detected.The protein efficiency ratio (PER) and net protein utilization (NPU) of the beans determined with rats, were superior to those of groundnuts. The supplementary value of the protein was shown by mixing two parts of the winged bean and three parts of maize flour. When adjusted to either 10% or 16% protein, the PER values of these mixtures were similar to those of skim milk. At the 16% protein level, addition of skim milk or 0·3% DL-methionine to this mixture produced only an insignificant improvement in PER value.The pleasant, sweet taste even when in the raw state is one of the advantages of the winged bean. Although, it is a climber, and should be staked, its cultivation on a small scale in selected areas of Ghana is recommended.


1980 ◽  
Vol 44 (3) ◽  
pp. 333-341 ◽  
Author(s):  
W. Steele

1. Sheep were given four different diets which contained two types of forage and two types of concentrate. The forage portion of the diet consisted of either hay or silage, while the low-oil concentrate had high levels of starch and in the high-oil concentrate this starch was replaced by an isoenergetic amount of soya-bean oil.2. The effects of these diets on various factors in the blood was measured.3. The erythrocytes were more fragile in hypotonic solutions (6.0–8.5 g sodium chloride/l) of saline when they were eating a diet of hay and high-oil concentrates.4. The levels of calcium, magnesium, phosphorus, glucose and β-hydroxybutyrate in the plasma were unaffected by dietary treatments.5. Substitution of silage for hay in the diet increased the intake of all fatty acids, especially that of C18:3.6. When the sheep had low intakes of oil, the change from hay to silage led to increases in the amounts of triglyceride (TG) and total lipid (TL) in their plasma, whereas with high intakes of oil this change of forage increased the plasma TG content by an even greater amount but did not alter the concentration of TL.7. Increasing the intake of dietary oil raised the levels of both TG and TL in the plasma, irrespective of the type of dietary forage.8. On silage diets the sheep had much greater amounts of 18:0 and 18:1 fatty acids but smaller quantities of 18:2 fatty acid in their plasma than on hay diets.9. Changing the dietary forage from hay to silage or the concentrate from low- to high-oil enhanced the levels of all the trans isomers of C18 fatty acids in the blood of the animals.10. These results imply that unsaturated fatty acids in silage-based diets are hydrogenated to a greater extent in the rumen than those in hay diets which results in an elevation in blood TG levels and that this in turn could profoundly alter such functions as milk fat synthesis and fat deposition in ruminants.


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