scholarly journals Lipid content and fatty acids compositions in commercial cuts of young goat meat

2019 ◽  
Vol 49 (2) ◽  
Author(s):  
Bruna Aparecida Souza Machado ◽  
Ivana Silva Gomes ◽  
Cassiane da Silva Oliveira Nunes ◽  
Graciele de Queiroz Andrade ◽  
Tatiana Barreto Rocha Nery ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Lipid Content ◽  
Total Lipid Content ◽  
Total Lipids ◽  
American Continent ◽  
Average Percentage ◽  
Significant Difference ◽  
The City ◽  
Important Activity ◽  
Goat Farming

ABSTRACT: Brazil has the largest herd of goats of the American continent, with more than 9 million head. Goat farming is considered a growing and important activity for the economy, mainly in the northeastern region of Brazil .In this research, were determined the lipid content and the composition of fillet and shank fatty acids of young goats, registered in the inspection sector of the Ministry of Agriculture and marketed in the city of Salvador (Bahia). The average percentage of total lipids in the fillet was 1.68±0.04 and in the shank of 4.02±0.09, this is a significant difference between the cuts (P<0.05). Twenty-seven (27) fatty acids were identified in the cuts, most are palmitic acid (C16:0), stearic acid (C18:0) and oleic acid (C18:1ω9) present in 21.32%, 20.39%, 34.49% in the fillet and 21.74%, 21.94%, 33.38% in the shank, respectively. The total sums of saturated and polyunsaturated fatty acids ranged of 42.75 to 45.23% and 14.04 to 12.35% between fillet and shank cuts, respectively. The ratio of PUFA/SFA was 0.35 for fillet and 0.15 for shank, and the ratio ω6/ω3 was 3.07 for fillet and 2.27 for shank. Therefore, is a significant difference in total lipid content and fatty acid composition in commercial cuts of beef fillet and shank.

scholarly journals Comparison of lipid compositions of soft coral Sinularia brassica collected in different coastal regions of Vietnam

2019 ◽  
Vol 19 (2) ◽  
pp. 285-291
Author(s):  
Dang Thi Phuong Ly ◽  
Nguyen Thi Nga ◽  
Dang Thi Minh Tuyet ◽  
Pham Minh Quan ◽  
Andrey Imbs Borisovich
Keyword(s):  
Fatty Acids ◽  
Total Lipid ◽  
Lipid Content ◽  
Soft Coral ◽  
Total Lipid Content ◽  
Total Lipids ◽  
Soft Corals ◽  
Two Samples ◽  
Nha Trang Bay ◽  
Quang Ninh

Five soft coral samples belonging to the same specimen Sinularia brassica were collected in the coastal area of Ha Long Quang Ninh, Nhat Le beach, Quang Binh, Hon Vang - Thanh Hoa and Nha Trang areas (2014–2016), these samples were examined and analyzed by total lipid content, content and composition of lipid and fatty acids. Highest total lipid content was found in the sample SHM 09 collected in Nha Trang bay (1.11%), and the lowest total lipid content was in HL-SHM 07 collected in Ha Long, Quang Ninh (0.68%).The lipid composition of samples contained basic classes such as polar lipids, sterols, free fatty acids, triacylglycerols, monoankyldiacylglycerols, hydrocarbons and waxes. In studied soft corals, there are the appearance of all fatty acids from C12 to C24. There are differences in composition and content of lipids and fatty acids in samples collected in different locations: Samples collected at Nha Trang bay contain more polyunsaturated fatty acids than the other samples collected in Ha Long, Thanh Hoa, Quang Binh. Another two samples, collected in Hon Vang (Thanh Hoa) have similar composition and content of lipid classes, the composition and content of fatty acids in total lipids. The obtained results also show the significant impact of habitat and time of acquisition on the studied subject.

scholarly journals Effect of season on the fatty acid profile of total lipids, phospholipids and triacylglycerols in Mastacembelus mastacembelus (Atatürk Dam Lake, Turkey)

2018 ◽  
Vol 69 (1) ◽  
pp. 242 ◽  
Author(s):  
S. Kaçar ◽  
M. Başhan ◽  
S. A. Oymak
Keyword(s):  
Fatty Acids ◽  
Total Lipid ◽  
Lipid Content ◽  
Palmitoleic Acid ◽  
Saturated Fatty Acids ◽  
Total Lipid Content ◽  
Docosapentaenoic Acid ◽  
Monounsaturated Fatty Acids ◽  
Total Lipids ◽  
Atatürk Dam Lake

The present study investigated the lipid content and FA profiles of total lipids, phospholipids (PL) and triacylglycerols (TAG) of Mastacembelus mastacembelus from the Atatürk Dam Lake (Turkey). The results showed that the total lipid content of the dorsal muscle varied seasonally from 0.50% to 3.59%. Wide ranges of saturated fatty acids (SFAs) (36.21 to 50.52%) and polyunsaturated fatty acids (PUFAs) (25.22 to 42.02%) were found in the PL fraction. However, higher monounsaturated fatty acids (MUFAs) (37.63 to 45.07%) and SFA (34.71 to 38.82%) were found in TAG (triacylglycerol). The ratios of ω-3 to ω-6 PUFA ranged from 0.65 to 1.32 and 1.07 to 3.48 in PL (phospholipid) and TAG fraction, respectively. The results also showed that the major components were palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1ω-9), palmitoleic acid (C16:1ω-7), docosahexaenoic acid (DHA, C22:6ω-3), arachidonic acid (AA, C20:4ω-6) and docosapentaenoic acid (C22:5ω-3) in total lipid, C16:0, C18:1ω-9, AA and DHA in PL, C16:0, C16:1ω-7, C18:1ω-9, linoleic acid (LA, C18:2ω-6), and DHA in TAG extracted from the muscle of M. mastacembelus in all seasons.

scholarly journals Fatty acid profile and lambs’ meat quality fed with different levels of crude glycerin replacing corn

2017 ◽  
Vol 38 (4) ◽  
pp. 2051
Author(s):  
Fabíola Cristine de Almeida Rego ◽  
Mônica Chaves Françozo ◽  
Agostinho Ludovico ◽  
Filipe Alexandre Boscaro de Castro ◽  
Marilice Zundt ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Meat Quality ◽  
Crude Glycerin ◽  
Average Weight ◽  
Total Lipids ◽  
Linear Effect ◽  
Margaric Acid ◽  
Randomized Design ◽  
Significant Difference ◽  
Total Fatty Acids

This study aimed to evaluate the Texel lambs’ meat quality fed with increasing levels of crude glycerin (0, 7, 14, and 21% of dry matter) in the diet. Thirthy-two-two non-castrated male Texel lambs were used, with initial weight of 15.9 ± 4.1 kg, using a completely randomized design with four treatments and eight repetitions, per treatment. Upon reaching the average weight of 35 kg, the animals were slaughtered. The meat chemical composition was similar among treatments (P>0.05) and total lipids and crude protein presented averages of 3.47 and 20.05 g 100g -1, respectively. No changes in pH, marbling, color, and water loss under pressure were observed. The shear force did not change among treatments and the texture can be considered soft, with average values of 5.48 kgf. There was a linear (P0.05) were observed for the attributes flavor, tenderness, juiciness, and overall acceptance among treatments. Fatty acids in higher proportions in the meat lamb were to C18:1n-9 (1298.90 mg 100g-1), C16:0 (709.07 mg 100g-1) and C18:0 (433.30 mg 100g-1), with percentages of 42.72, 23.07 and 14.35%, respectively. Significant difference according to the glycerin level in the diet was observed only for the margaric acid (C17:0) with an increasing linear effect, reaching 58.95 mg 100g-1 muscle to the group with 21% crude glycerin, corresponding to 1.77% of total fatty acids. The other fatty acids did not change, and provided a satisfactory result for conjugated linoleic acid (CLA), totaling about 6.1 mg 100 g-1 muscle, corresponding to 0.21% of total lipids. The use of glycerin in the diet for finishing lambs does not alter the characteristics of the meat, maintaining the product quality for consumption.

scholarly journals Nutrient content of South African red meat and the effect of age and production system

1970 ◽  
Vol 45 (3) ◽  
pp. 313-324
Author(s):  
HC Schonfeldt ◽  
N Hall
Keyword(s):  
Fatty Acids ◽  
South African ◽  
Lipid Content ◽  
Total Lipid Content ◽  
Nutrient Content ◽  
Red Meat ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Nutritional Profile ◽  
Feeding Systems

Feeding systems, slaughter age and other production techniques notably influence the nutrient content of red meat. The modernization of the different South African production systems since the previous nutrient composition studies, justifies the necessity to update existing knowledge on the nutritional profile of South African produced beef. In addition, a need was identified to extrapolate the effect of the two different feeding systems (extensive and intensive) on this nutritional profile. Results indicate that the total lipid content of marketable young carcasses (age A, fat code 2) has decreased over time, in line with global health and nutrition trends for leaner foods. With the majority of beef from these young carcasses being produced on intensive grain-based feeding systems, South Africa has a unique advantage in terms of total lipid content of such grain-fed produce. Internationally, grain-fed red meat is in most cases higher in total and saturated fat content compared to grass-fed counterparts, while in South African the opposite was observed. In addition to total fat content, the role of various lipid fractions in human health has often been associated with specific produce positioning and marketing. South African grass-fed beef is significantly higher in healthy omega 3 fatty acids and conjugated linoleic acid, irrespective of degree of fat trimming. From a human nutrition perspective, it should be kept in mind that the total amount of omega 3 fatty acids per edible portion of beef produced in either production system is low in comparison to human dietary recommendations.Keywords: Beef, fatty acids, grain-fed beef, grass-fed beef, physical composition

scholarly journals FATTY ACIDS COMPOSITION OF TOCTE (JUGLANS NEOTROPICA DIELS) WALNUT FROM ECUADOR

2018 ◽  
Vol 11 (2) ◽  
pp. 395 ◽  
Author(s):  
Vilcacundo E ◽  
Alvarez M ◽  
Silva M ◽  
Carpio C ◽  
Morales D ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Linolenic Acid ◽  
Lipid Content ◽  
Methyl Esters ◽  
Total Lipid Content ◽  
Fatty Acids Composition

 Objective: The aim of this study was to determine the fatty acids composition in a tocte seeds oil (Juglans neotropica Diels) sample cultivated in Ecuador.Methods: Tocte oil was obtained from tocte seeds using the cold pressing method. Fatty acids analysis was carried out using the gas chromatography method with a mass selective detector (GC/MSD) and using the database Library NIST14.L to identify the compounds.Results: Methyl esters fatty acids were identified from tocte (J. neotropica Diels) walnut using the GC–MS analytical method. The total lipid content of tocte walnuts seeds of plants cultivated in Ecuador was of 49.01% of the total lipid content on fresh weight. Fatty acids were analyzed as methyl esters on a capillary column DB-WAX 122-7062 with a good separation of palmitic acid, stearic acid, oleic acid, linoleic acid, and linolenic acid. The structure of methyl esters fatty acids was determined using the GC–MS. Tocte walnut presents 5.05% of palmitic acid, 2.26% of stearic acid, 19.50% of oleic acid, 65.81% of linoleic acid, and 2.79% linolenic acid of the total content of fatty acids in tocte oil. Fatty acids content reported in this study were similar to the data reported for other walnuts seeds.Conclusions: Tocte seeds are a good source of monounsaturated and polyunsaturated fatty acids. Tocte oil content oleic acid and with a good content of ɷ6 α-linoleic and ɷ3 α-linolenic. Tocte walnut can help reduce risk cardiovascular diseases in Ecuador for their good composition of fatty acids.

scholarly journals Nutritional value changes in response to temperature, microalgae mono and mixed cultures

2019 ◽  
Vol 31 ◽  
Author(s):  
Frederico Pacheco Militão ◽  
Valéria de Oliveira Fernandes ◽  
Kathiani Victor Bastos ◽  
Aline Paternostro Martins ◽  
Pio Colepicolo ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Mixed Culture ◽  
Cell Density ◽  
Total Lipid ◽  
Biochemical Composition ◽  
Essential Fatty Acids ◽  
Scenedesmus Obliquus ◽  
Total Lipid Content ◽  
Mixed Cultures ◽  
Significant Difference

Abstract Aim The response of mixed cultures and monocultures of Pseudopediastrum boryanum (Turpin) E. Hegewald and Scenedesmus obliquus (Turpin) Kützing was assessed in the laboratory at three different temperatures: 20, 30 and 40 °C. The change in biomass and biochemical composition of these cultures was evaluated. Methods Microalgae were placed in a batch culture over 21-days in ASM1 medium. Cell density was directly counted every two days using a Fuchs-Rosenthal hemocytometer. Chlorophyll ‘a’ and total carotenoids were extracted twice. Protein, carbohydrate, total lipid and fatty acid contents were determined at the end of the experiment. Results Cultures grown in 40 °C exhibited no growth. However, there was increased cell density (13.6 x 106 cell.mL-1) and biomass (55 g.L-1) in the S. obliquus monoculture at 30 °C. High protein concentrations (672.6 mg.g-1) were observed in monocultures P. boryanum and S. obliquus at 20 °C treatments. There were high carbohydrate concentrations (6.17 mg.g-1) in P. boryanum unialgal at 30 °C. There was no significant difference in total lipid content between S. obliquus (95.5 mg.g-1), P. boryanum (96.3 mg.g-1) and the mixed culture at 20 °C (105.3 mg.g-1). FAMEs varied significantly regarding the number of unsaturated components, which predominantly consisted of fatty acids with two or more unsaturated bonds. Conclusions The biomass of the treatments analyzed was rich in proteins and essential fatty acids (such as linolenic acid), yet low in carbohydrate content, suggesting its potential use as a food supplement. Our results indicate that mixed culture of P. boryanum and S. obliquus was inefficient in cultivating biomass or biochemical compounds as compared to the unialgal cultivations. However, algae grown together showed better stability in their biochemical composition in response to changes in temperature, an important factor for microalgae production in open ponds and in food safety measures. These results suggest the consortia among different species of microalgae should be tested to determine better methodologies for the production of biomass and metabolites with greater stability towards environmental factors.

Lipid content and energy expenditure in the spawning migration of alewife (Alosa pseudoharengus) and blueback herring (Alosa aestivalis)

1986 ◽  
Vol 64 (9) ◽  
pp. 1902-1907 ◽  
Author(s):  
Robert H. Crawford ◽  
R. Roland Cusack ◽  
Timothy R. Parlee
Keyword(s):  
Lipid Content ◽  
Total Lipid Content ◽  
Alosa Pseudoharengus ◽  
Blueback Herring ◽  
Alosa Aestivalis ◽  
High Lipid ◽  
Significant Difference ◽  
The Difference ◽  
Very High ◽  
Immature Fish

For the alewife (Alosa pseudoharengus) and blueback herring (Alosa aestivalis) total lipid content was neither size nor sex specific. The lipid content of alewife and blueback herring from the LaHave River, Nova Scotia, was similar at 7.6 and 7.0%, respectively. However, in samples from the Margaree River there was a significant difference in lipid content between alewife and blueback herring (7.8% vs. 5.4%, respectively). The difference appeared to be a consequence of water temperature since late migrants of both species had a significantly lower lipid content. For alewife migration in the LaHave River, a distance of 31 km, lipid content declined by 22%, whereas in the Margaree River lipid loss was 18% over 32 km. Lipid content was also dependent on reproductive maturity, with lipid levels of 14.4, 8.7, and 5.4% in immature, prespawning, and spent alewife from site 1 on the Margaree River. Immature fish were characterized by a very high lipid content associated with the visceral organs. Protein utilization was not evident in the prespawning migration of alewife from the LaHave River. Based on lipid depletion the migration energetics of alewife in the two rivers were similar at 21.68 and 18.53 kJ∙kg−1∙km−1 in the LaHave and Margaree Rivers, respectively.

Lipid composition of developing Xenopus laevis embryos

1976 ◽  
Vol 54 (6) ◽  
pp. 578-582 ◽  
Author(s):  
Mary Mes-Hartree ◽  
John B. Armstrong
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Xenopus Laevis ◽  
Lipid Content ◽  
Lipid Composition ◽  
De Novo ◽  
Total Lipid Content ◽  
De Novo Synthesis ◽  
Xenopus Laevis Embryos

The total lipid content, amount of phospholipid, proportions of major polar and neutral lipid classes, and the overall fatty acid composition were examined in Xenopus laevis embryos. No obvious differences were observed in any of the parameters between fertilization and hatching, or between eggs produced by different females. The average lipid content per egg was 113 μg, 31.6 μg of which was phospholipid. The major phospholipids were phosphatidylcholine and sphingomyelin. The major fatty acids were palmitic and oleic acids, but polyunsaturated fatty acids were also present in substantial amounts. The results suggest that significant de novo synthesis of lipids does not occur until after hatching.

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