Analysis of Fatty Acids in Functional Foods with Emphasis on v3 Fatty Acids and Conjugated Linoleic Acid

The effect of dietary conjugated linoleic acid (CLA) in association with two vegetable oil sources on the fatty acids of meat and giblets of broiler chickens was evaluated. Two hundred 21-day-old broiler chickens were distributed in a completely randomized factorial design 2 x 5 (two oil sources, soybean or canola oil; and five levels of CLA, 0.0, 2.5, 5.0, 7.5, and 10.0g/kg). The addition of CLA to the diet resulted in an increase (P<0.05) in CLA deposition in the analyzed tissues. CLA supplementation also reduced (P<0.05) the rate of polyunsaturated to saturated fatty acids in thigh, breast, heart, and gizzard. There was interaction of CLA x oil source (P<0.05). The intake of soybean oil, associated with increasing CLA, resulted in an increase in lipid deposition in edible portions as observed by an increase in the overall content of fatty acids, including CLA, while the use of canola oil, associated with increasing CLA in the diet, resulted in a decrease in lipid content in edible portions, specifically regarding that of saturated fat (P<0.05) in breast meat and liver and in the content of monounsaturated fatty acids (P<0.05) in thigh, breast, liver, and gizzard.

Download Full-text

13 Enzymatic Purification and Enrichment of Polyunsaturated Fatty Acids and Conjugated Linoleic Acid Isomers

Food Lipids ◽

10.1201/9781315151854-14 ◽

2017 ◽

pp. 381-402

Author(s):

Yuji Shimada ◽

Toshihiro Nagao

Keyword(s):

Fatty Acids ◽

Linoleic Acid ◽

Polyunsaturated Fatty Acids ◽

Conjugated Linoleic Acid

Download Full-text

Profile of ingested fatty acids and in the duodenal digest of steers fed different diets

Revista Brasileira de Zootecnia ◽

10.1590/s1516-35982010001100025 ◽

2010 ◽

Vol 39 (11) ◽

pp. 2502-2511 ◽

Cited By ~ 4

Author(s):

Luís Fernando Glasenapp de Menezes ◽

Gilberto Vilmar Kozloski ◽

João Restle ◽

Ivan Luiz Brondani ◽

Raul Dirceu Pazdiora ◽

...

Keyword(s):

Fatty Acids ◽

Linoleic Acid ◽

Conjugated Linoleic Acid ◽

Unsaturated Fatty Acids ◽

Saturated Fatty Acids ◽

Latin Square ◽

Tropical Pasture ◽

Ruminal Fermentation ◽

Omega 3 ◽

Conventional Diet

It was evaluated in this study the effect of the type of the diet on duodenal flow of long-chain fatty acids in steers. The tested diets were the following: conventional (feedlot diet composed of 60% corn silage and 40% of concentrate); winter forage silage - rye grass (Lolium multiflorum, Lam); or tropical forage silage - association of millet (Pennisetum americanum, Leeke + alexander grass, Brachiaria plantaginea). Six Charolais × Nellore crossbred steers with cannulas in duodenum were used in a 3 × 3 double Latin square. Dry material intake was similar among the groups (mean of 4,037 g/day), but the intake of total fatty acids and saturated fatty acids were higher in the group fed tropical pasture silage. On the other hand, the animals which received the conventional diet consumed higher quantity of unsaturated fatty acids. Tropical pasture silage provided higher consumption of vacenic acid (C18:1 t-11) and the winter forage silage offered higher consumption of conjugated linoleic acid. The intake of omega-6 fatty acids was higher in the group fed conventional diet and for omega-3, intake was higher in the group fed tropical pasture diet. The total fatty acid flow in the duodenum was not affected by the diets, but in all treatments it was higher than the consumed one. The animals fed diet with concentrate show the greatest changes on the profile of fatty acids during the ruminal fermentation. Conventional diets provide the highest intake of unsaturated fatty acids and the highest availability of vacenic acid in the small intestine, but they do not increase the supply of intestinal conjugated linoleic acid.

Download Full-text