scholarly journals Cooking ways on composition of intramuscular phospholipid fatty acids of inra rabbit

2019 ◽  
Vol 49 (5) ◽  
Author(s):  
Xue Shan

ABSTRACT: The effect of boiling, microwaving and aluminium (Al) foil-baking on composition of intramuscular phospholipid fatty acids of Inra rabbit was evaluated. Results showed that, the proportion of polyunsaturated fatty acids (PUFA)(e.g. C18:2n-6, C20:4n-6, C20:5n-3, C22:5n-3 and C22:6n-3) and monounsaturated fatty acids (MUFA)(e.g. C18:1n-7 and C18:1n-9) of treated longissimus dorsi muscle (LD) decreased, whilst the proportion of saturated (SFA)(e.g. C16:0 and C18:0) and n-6/n-3 value increased during cooking. Among the three treatments, microwaving can do better to stop the unsaturated fatty acids (UFA) being destroyed than boiling and Al foil-baking. However, boiling treatment did more serious damage to PUFA portion. Even so, the n-6/n-3 values of all of the cooked LD were within the recommended range. By analysis of partial least squares regression (PLSR), the microwaving treatment was more suitable in reserving UFA of intramuscular phospholipids from inra rabbit.

2016 ◽  
Vol 14 (2) ◽  
pp. e0603 ◽  
Author(s):  
Carmen De Jesús ◽  
Rubén Domínguez ◽  
Jesús Cantalapiedra ◽  
Antonio Iglesias ◽  
José M. Lorenzo

The effect of including chestnuts in the formulation of the feed on carcass characteristics and meat quality from 24 castrated males Celta pigs was studied. The inclusion of 15% of chestnut (CH15) improved (p<0.01) the carcass (118 vs. about 104 kg) and live weights (149 vs. 133-139 kg). Killing out percentage was also better for chestnuts groups than for control group. With regards the morphometric parameters, there were no statistically significant (p>0.05) differences except for the carcass length and ham length, for which the CH15 group proved to be the group with the longest sizes. The diet did not affect the physicochemical properties (colour parameters, water holding capacity and shear force) of longissimus dorsi muscle. The composition of some fatty acids of the longissimus dorsi muscle was affected by diet. The total saturated (35-38%) and total polyunsaturated fatty acids (8-10%) did not present differences. However, the increase of chestnut in the diet increased (p<0.05) the monounsaturated fatty acids in intramuscular fat (57% in CH25 vs. 53% in control and CH15). Within monounsaturated fatty acids, the C18:1n9 was the most influenced by the diet. The expression of the enzyme that synthesizes C18:1n9 depend on the composition of the diet. Therefore, the lower content of protein and the higher amounts of C18:1n9 and C18:2n6 in the chestnut could be explaining the greater content of C18:1n9 in muscle of chestnut-fed animals. The main conclusion is that including chestnuts in the diet would allow reduce production costs with no effect or even improving carcass measurements and meat quality.


2012 ◽  
Vol 41 (7) ◽  
pp. 1706-1712 ◽  
Author(s):  
Gabriela Aferri ◽  
Paulo Roberto Leme ◽  
Angélica Simone Cravo Pereira ◽  
Saulo da Luz e Silva ◽  
Soraia Marques Putrino ◽  
...  

2019 ◽  
Vol 99 (1) ◽  
pp. 15-23 ◽  
Author(s):  
Wangjing Liu ◽  
He Ding ◽  
Khas Erdene ◽  
Renwei Chen ◽  
Qier Mu ◽  
...  

Sixty male Small-tailed Han sheep (initial body weight: 42.5 ± 4.1 kg) were assigned randomly and averagely into four groups to evaluate effects of flavonoids extracted from Allium mongolicum Regel (AMR) on meat quality and composition of fatty acids related to flavor in longissimus dorsi muscle of lambs. Lambs of four groups were fed a basal control diet (C), and basal diet + three different amounts of flavonoids extracted from the AMR; those were 11 mg kg−1 (Flav 11), 22 mg kg−1 (Flav 22), or 33 mg kg−1 (Flav 33), respectively. Dressing percentage, loin eye area, cooking loss, and pressing loss were affected by treatments (P < 0.05). Percentage of intramuscular fat, the concentrations of eicosapentaenoic acid, C18:0, total saturated fatty acids, monounsaturated fatty acid, and 4-methyloctanoic acid in longissimus dorsi muscle were changed by treatments (P < 0.05). Addition of AMR to diet improved the meat quality and had favorable effects on fatty acid composition related to meat flavor in longissimus dorsi muscle.


2008 ◽  
Vol 8 (2) ◽  
pp. 66 ◽  
Author(s):  
Rodrigo Efrén Vásquez ◽  
Beatriz Abadía ◽  
Luis Carlos Arreaza ◽  
Hugo Humberto Ballesteros ◽  
César Andrés Muñoz

<p>Se evaluó el perfil de cinco ácidos grasos en muestras del músculo <em>Longissimus dorsi </em>de 120 bovinos provenientes de 40 empresas ganaderas de trópico bajo, ubicadas en zonas declaradas libres de aftosa por vacunación y productoras de canales de alta calidad. Respecto del perfil de ácidos grasos de cadena larga se encontró que el promedio general del extracto etéreo fue de 7,41 ± 3,61% con un cv alto (48,80%); además, para esta variable se establecieron diferencias (P&lt; 0,001) en cuanto al tipo de forraje y el suplemento utilizado para la alimentación de los animales, el tipo racial y entre empresas ganaderas; así mismo, hubo diferencias (P&lt; 0,005) en cuanto el efecto de la condición sexual, la clasificación de la canal y el uso de hormonas. Para el total de ácidos grasos se encontró un promedio de 58,11 ± 8,44% distribuido con valores promedio para los ácidos grasos saturados de 30,61 ± 4,96% y para los ácidos grasos insaturados de 27,49 ± 4,23%, de los cuales el 22,87 ± 4,04% está compuesto por ácidos grasos monoinsaturados y el 4,61 ± 0,79% por ácidos grasos poliinsaturados. Con relación a los valores de extracto etéreo se encontró el mayor porcentaje en la raza Brangus (17,68 ± 3,75%), seguido por animales Cebú x <em>Bos taurus </em>y Cebú Brahman, con valores de 7,51 ± 4,76 y 7,30 ± 5,07%, respectivamente; el tipo racial Romosinuano puro y los cruces de Cebú con Romosinuano y Pardo Suizo presentaron los menores valores para esta variable. </p><p><strong> </strong></p><p><strong>Meat quality associated factors. Part II: Fatty acids profile of beef in 40 cattle enterprises of the Caribbean and mid-Magdalena regions of Colombia </strong></p><strong>]</strong>The profile of five fatty acids in samples of <em>Longissimus dorsi </em>muscle tissue was evaluated on 120 bovine animals from 40 meat enterprises producing high quality carcasses in lowland tropical areas declared free of hoof-and-mouth disease by vaccination. Regarding the profile of long chain fatty acids it was found that the general average of ether extract was 7.41 ± 3.61% with a high cv (48.8%). Additionally, for this variable were established differences (P&lt; 0.001) due to forage type, feed supplement, type of breed and meat enterprise. Similarly, there were differences (P&lt; 0.005) in regard to the effect of gender, carcass classification, and use of hormones. For total fatty acids an average of 58.11 ± 8.44% was found, distributed with mean values for saturated fatty acids of 30.61 ± 4.96% and for unsaturated fatty acids of 27.49 ± 4.23 %, of which 22.87 ± 4.04% is composed of monounsaturated fatty acids and 4.61 ± 0.79% of polyunsaturated fatty acids. Ether extract values were higher with the Brangus breed (17,68 ± 3,75%) followed by Zebú x <em>Bos taurus </em>and Zebú Brahman crosses with values of 7,51 ± 4,76 and 7,30 ± 5,07%, respectively. The pure Romosinuano racial type and the crosses of Zebú x Brown Swiss and Zebu x Romosinuano showed the lowest values for this variable.


Author(s):  
Flavia POP ◽  
Cornel LASLO

In this article the chemical composition of 2 types of animal fats (cow milk fat and poultry fat) following the variation of saturated and unsaturated fatty acids proportion during freezing storage was studied. Determination of chemical composition of animal fats is important in establishing organoleptic and physico-chemical parameters, the variation of them in time, nature and proportion of fatty acids conferring specific characteristics to them. For milk fat was determined the following chemical composition: saturated fatty acids 68.35%, monounsaturated fatty acids 29.25%, polyunsaturated fatty acids 2.4%. After 4 months of storage under freezing there was a change in fatty acids proportion, saturated fatty acid content increased to 70.41%, monounsaturated fatty acids content decreased to 28.23%, and polyunsaturated fatty acids content decreased to 1.35% due to oxidation process when decreased the degree of unsaturation due to unsaturated fatty acids oxidation. In the case of poultry fat there was also an increase of saturated fatty acids (30.71%) and a decrease for monounsaturated (43.47%) and polyunsaturated (24.81%) fatty acids content.


2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2321 ◽  
Author(s):  
Ana Claudia Radis ◽  
Francisco De Assis Fonseca de Macedo ◽  
Natalia Holtz Alves Pedroso Mora ◽  
Claudete Regina Alcalde ◽  
Jesuí Vergilio Visentainer ◽  
...  

Linseed plays an important role in animal nutrition as it contains long-chain fatty acids in its composition, which, once absorbed, are incorporated into meat and milk. For evaluate the concentration of fatty acids in the Longissimus dorsi muscle of culling ewes fed diets containing levels of inclusion of linseed, 88 culling ewes were used with an average initial body weight of 37.65 ± 6.98 kg were distributed in a completely randomized design with 12 treatments. Treatments consisted of the interaction between levels of linseed (0, 5, 10, and 15%) and days in feedlot (30, 45, and 60). The most present fatty acids in the composition of the muscle L. dorsi were palmitic (27.32 g 100 g-1) and stearic (17.77 g 100 g-1). Saturated acids remained at low levels as the animals were fed greater levels of linseed, demonstrating the importance of introducing quality foods in animal feeding. Oleic acid was the most present monounsaturated fatty acid, with 40 g 100 g-1. Palmitoleic and elaidic fatty acids increased linearly as the linseed inclusion in the diet was increased. Polyunsaturated acids increased with the presence of linseed in the diet. For the linolenic acid (C18: 3n3), the best result was with inclusion of 10% of linseed in the total diet. All groups of animals that received linseed obtained better n6:n3 ratios, which varied from 1.81 to 4.14. The higher CLA values obtained in this study are related to the higher amounts of inclusion of linseed in the sheep diet, varying from 1.15 to 5.72 g 100 g-1. It is recommended culling ewes supplemented with inclusion of 10% linseed, for 60 days in feedlot, because they comprise a larger number of favorable traits regarding to the profile fatty acids of Longissimus dorsi.


2021 ◽  
Vol 10 (9) ◽  
pp. e41410917231
Author(s):  
Naiane Silva Cardoso ◽  
Julia Rosental de Souza Cruz ◽  
Ramon Alves de Oliveira Paula ◽  
Stella Maris da Silveira Duarte ◽  
Maria Rita Rodrigues ◽  
...  

Several studies have been demonstrating to a relationship between unsaturated fatty acids, improvement of pancreatic function and insulin secretion. In this context, this review presents the most recent findings on the pathophysiology of type 2 diabetes mellitus, the action mechanism of unsaturated fatty acids on pancreatic function, and clinical studies in diabetic patients. We evaluated here articles from MedLine/PubMed and the Science direct database, published between 2014 and 2020. Of the 637 results, 13 were selected. From their analysis, we could observe that mono and polyunsaturated fatty acids can improve glycemic control as well as reduce cardiovascular risk. The most recurrent antidiabetic action regarding monounsaturated fatty acids is the ability to preserve insulin signaling, whereas polyunsaturated fatty acids action consists in the increasing expression of the type 4 glucose transporter. However, a complete understanding of the relationship between fatty acids, insulin and inflammation should be considered in future investigations.


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