scholarly journals Lipase-Catalyzed Transesterification of Egg-Yolk Phophatidylcholine with Concentrate of n-3 Polyunsaturated Fatty Acids from Cod Liver Oil

Molecules ◽  
2017 ◽  
Vol 22 (10) ◽  
pp. 1771 ◽  
Author(s):  
Anna Chojnacka ◽  
Witold Gładkowski ◽  
Aleksandra Grudniewska
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Egg Yolk ◽  
Cod Liver Oil

Effects of Dietary Addition of Linseed Oil on the Content of Polyunsaturated Fatty Acids in Egg Yolk of Gallus domestiaus

2021 ◽  
Vol 15 (4) ◽  
pp. 565-570
Author(s):  
Suhu Duan ◽  
Zaiqiang Li ◽  
Zhenzhen Fan ◽  
Mengran Qin ◽  
Xiaoxue Yu ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Polyunsaturated Fatty Acids ◽  
Theoretical Basis ◽  
Linseed Oil ◽  
Egg Yolk ◽  
Free Food ◽  
Control Group ◽  
Experimental Group ◽  
Group 1

In order to study the effect of dietary supplement of linseed oil on polyunsaturated fatty acids (PUFAs) in egg yolk of Gallus domestiaus, total 160 healthy Gallus domestiaus of 26-week old were randomly selected and divided into 4 groups, each of which included 40 chickens fed outdoors with an area of 63 m2 and free food and drinking water. The control group (CK) was fed the basic diet, and the experimental group was added 1, 3 and 5% of linseed oil in the fundamentals of diet (experimental group 1, 2 and 3, abbreviated as P1, P2, P3), respectively. The content of PUFA and the value of n-6 PUFA and n-3 PUFA in egg yolk were determined by gas chromatography with 24 eggs randomly selected in each group after 10th, 25th and 40th days of the commence of the experiment. We found that the levels of α-linolenic acid (C18:3n3, ALA) and docosahexaenoic acid (C22:6n3, DHA) in egg yolk were clearly higher than the CK when 3% linseed oil or 5% linseed oil were added in the diet during the three experiment periods, in which the contents of linoleic Acid (18:2n6c, LA) and arachidonic acid (C20:4n6, ARA) in egg yolk differ little between P1, P2 and P3 and the CK while the value of n-6 PUFA and n-3 PUFA in egg yolk of the P2 and P3 groups decreased significantly. The comprehensive comparisons suggested that the content of C18:3n3 and C22:6n3 in egg yolk could be clearly increased in the P2 while the value of n-6 PUFA and n-3 PUFA decreased. This study provides theoretical basis for the production of functional eggs enriched with C22:6n3 and C18:3n3.

scholarly journals Nutrition and lysosomal activity. The effect of dietary cod-liver oil on the distribution of polyunsaturated fatty acids in the kidney lysosomes of rats receiving deficient or adequate intakes of vitamin E

1969 ◽  
Vol 23 (1) ◽  
pp. 31-39 ◽  
Author(s):  
M. Iqbal ◽  
J. T. Dingle ◽  
T. Moore ◽  
I. M. Sharman
Keyword(s):  
Fatty Acids ◽  
Vitamin E ◽  
Polyunsaturated Fatty Acids ◽  
Partial Replacement ◽  
Reverse Direction ◽  
Cod Liver Oil ◽  
Post Mortem ◽  
Dietary Changes ◽  
General Metabolism ◽  
Arachidonic Acids

1. In an attempt to explain the antagonism between polyunsaturated fatty acids (PUFA) and vitamin E in the promotion of post-mortem autolysis and increased lysosomal fragility in the kidney of rats, studies were made by gas chromatography of the incorporation of PUFA into the lysosomes.2. Kidneys were taken from rats that had received various diets, which differed in their fat components and which were with or without vitamin E. Since the inclusion of cod-liver oil in the diet reduces the period of dietary preparation necessary for rapid kidney autolysis, the effect of this oil on the PUFA distribution in the lysosomes was specially studied.3. In purified preparations of kidney lysosomes from rats that had received substantial amounts of cod-liver oil for several weeks, C 20:5 acid was incorporated mainly at the expense of C 18:2 (linoleic) and C 20:4 (arachidonic) acids. In less purified lysosomal fractions the incorporation of C 20:5 and C 22:6 acids and the corresponding reductions in linoleic and arachidonic were well advanced after 10 days, but were not maximal until about 30 days. The same changes took place in the reverse direction, with about the same rapidity, when rats that had previously been given cod-liver oil were changed to a diet containing lard.4. The percentage of PUFA in the kidney lysosomes of rats not dosed with vitamin E was not significantly different from that of rats given adequate doses.5. Thus the increased tendency to kidney autolysis, and the reduced stability of the lysosomes, caused by the feeding of cod-liver oil were associated with the partial replacement of linoleic acid and of the endogenous arachidonic acid by an acid, usually foreign to the rat, which is even more unsaturated. Since vitamin E did not prevent the entry of this acid into the lysosomes its potency in retarding autolysis and stabilizing the lysosomes must be exerted at some point subsequent to the incorporation of PUFA.6. Since change in the percentage of lysosomal PUFA in response to dietary changes is slow, this suggests that the lysosornal lipidsescape usage in general metabolism as an immediate source of calories and that they have a half-life of at least 15 days. Individual fatty acids, however, may differ in their half-lives.

A Study of the Hypocholesterolemic Activity of the Ethyl Esters of the Polyunsaturated Fatty Acids of Cod Liver Oil in the Chicken

1963 ◽  
Vol 80 (4) ◽  
pp. 403-413 ◽  
Author(s):  
Samuel G. Kahn ◽  
John Vandeputte ◽  
Shirley Wind ◽  
Harold Yacowitz
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Ethyl Esters ◽  
Cod Liver Oil

Egg yolk enriched with polyunsaturated fatty acids (PUFAs) improves the shelf life of ram semen in liquid storage

2018 ◽  
Vol 166 ◽  
pp. 87-92 ◽  
Author(s):  
Morteza Zarei ◽  
Behnam Rostami ◽  
Reza Masoumi ◽  
Mohsen Sharafi ◽  
Mohammad Hossein Shahir ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Shelf Life ◽  
Egg Yolk ◽  
Liquid Storage
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