Fat Content and Fatty Acid Composition of Sheep Meat and Adipose Tissues at Retail Outlets in Khartoum State, Sudan

Kamaleldin. M. Abuelfatah, Mayada. F. Ibrahim, Salih. A. Babiker

Abstract


This study aimed to evaluate fat content and fatty acid (FA) composition of desert sheep meat and adipose tissues at retail outlets in Khartoum State, Sudan. A total of 25 carcasses of desert sheep were used in this study. Samples from longissimus thoracic muscle (LT), kidney fat (KF), and subcutaneous fat (SF) were obtained from each carcass for fat extraction using chloroform-methanol method, and FA analysis using CG/ MS technique. The fat contents were 80.76, 75.57, and 4.02% for KF, SF, and LT, respectively. The most abundant FAs were oleic, palmitic, and stearic, which comprised about 81 to 87% of the total FAs. The highest portion of oleic acid was found in LT (29.2%) followed by SF (27.22%), and the lowest portion (22.12%) was found in KF. The portion of palmitic acid was significantly higher in KF (30.17%) compared to that in LT (27.03%) or in SF (26.73%). Stearic acid was significantly higher in SF (33.32%) compared to KF (29.2%) and LT (26.74%). The proportions of linoleic acid were 9.35, 4.2, and 1.6% for LT, SF and KF, respectively. The proportion of α-linolenic was significantly higher in LT (0.7%) than in SF (0.5%).The LT muscle had the highest level desirable FAs (67.36%), followed by SF (65.74%), whereas the KF had the lowest level (55.83%) of desirable FAs.


Keywords


Fat; fatty acids; sheep; Sudan

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References


Abuelfatah, K., Zakaria, M. Z. A. B., Meng, G. Y., Sazili, A. Q. 2014. Changes in Fatty Acid Composition and Distribution of N-3 Fatty Acids in Goat Tissues Fed Different Levels of Whole Linseed. The Scientific World Journal, 2014. https://doi.org/10.1155/2014/934154.

Adkins, Y., Kelley, D.S., 2010. Mechanisms underlying the cardioprotective effects of omega-3 polyunsaturated fatty acids. The Journal of Nutritional Biochemistry (21), 781-792.

AOAC, 2007. Official Methods of Analysis, edited by K. Herlick, Association of Official Analytical Chemists, Arlington, Va, USA, 15th edition.

Banskalieva, V., Sahlu, T., Goetsch, A., 2000. Fatty acid composition of goat muscles and fat depots: a review. Small Ruminant Research (37), 255-268.

Denke, M.A., Grundy, S., 1992. Comparison of effects of lauric acid and palmitic acid on plasma lipids and lipoproteins. The American journal of clinical nutrition (56), 895-898.

Enser, M., Hallett, K., Hewett, B., Fursey, G., Wood, J., Harrington, G., 1998. Fatty acid content and composition of UK beef and lamb muscle in relation to production system and implications for human nutrition. Meat science (49), 329-341.

Fisher, A., Enser, M., Richardson, R., Wood, J., Nute, G., Kurt, E., Sinclair, L., Wilkinson, R., 2000. Fatty acid composition and eating quality of lamb types derived from four diverse breed× production systems. Meat science (55), 141-147.

Folch, J., Lees, M., Sloane-Stanley, G., 1957. A simple method for the isolation and purification of total lipids from animal tissues. J Biol chem (226), 497-509.

Garg, M.L., Wood, L.G., 2013. Nutrition and Physical Activity in Inflammatory Diseases, CABI.

Hooper, L., Thompson, R.L., Harrison, R.A., Summerbell, C.D., Ness, A.R., Moore, H.J., Worthington, H.V., Durrington, P.N., Higgins, J.P., Capps, N.E., 2006. Risks and benefits of omega 3 fats for mortality, cardiovascular disease, and cancer: systematic review. BMJ: British Medical Journal (332), 752.

Laviano, A., Rianda, S., Molfino, A., Fanelli, F.R., 2013. Omega-3 fatty acids in cancer. Current Opinion in Clinical Nutrition & Metabolic Care (16), 156-161.

Mahgoub, O., Khan, A., Al-Maqbaly, R., Al-Sabahi, J., Annamalai, K., Al-Sakry, N., 2002. Fatty acid composition of muscle and fat tissues of Omani Jebel Akhdar goats of different sexes and weights. Meat science (61), 381-387.

MARF., 2017. Ministry of Animals Resources and Fishers, Information Center. Khartoum, Sudan.

McAfee, A.J., McSorley, E.M., Cuskelly, G.J., Moss, B.W., Wallace, J.M., Bonham, M.P., Fearon, A.M., 2010. Red meat consumption: An overview of the risks and benefits. Meat science (84), 1-13.

Noci, F., Monahan, F., Moloney, A., 2011. The fatty acid profile of muscle and adipose tissue of lambs fed camelina or linseed as oil or seeds. animal (5), 134-147.

Raes, K., De Smet, S., Demeyer, D., 2004. Effect of dietary fatty acids on incorporation of long chain polyunsaturated fatty acids and conjugated linoleic acid in lamb, beef and pork meat: a review. Animal Feed Science and Technology (113), 199-221.

Tholstrup, T., Marckmann, P., Jespersen, J., Sandström, B., 1994. Fat high in stearic acid favorably affects blood lipids and factor VII coagulant activity in comparison with fats high in palmitic acid or high in myristic and lauric acids. The American journal of clinical nutrition (59), 371-377.

Warriss, P., 2000. Meat Science: An Introductory Text; CABI, Oxford, UK.

Werdi Pratiwi, N.M., Murray, P.J., Taylor, D.G., Zhang, D., 2006. Comparison of breed, slaughter weight and castration on fatty acid profiles in the longissimus thoracic muscle from male Boer and Australian feral goats. Small Ruminant Research (64), 94-100.

Whitney, E., Whitney, E.N., Rolfes, S.R., 2010. Understanding nutrition, Wadsworth Publishing Company.

Wood, J., Enser, M., 2017. Manipulating the Fatty Acid Composition of Meat to Improve Nutritional Value and Meat Quality. New Aspects of Meat Quality, Elsevier, pp. 501-535.

Wood, J.D., Enser, M. B., Richardson, R. I., & Whittington, F. M, 2007. Fatty acids in Meat and Meat Products. In: In Chow, C.K. (Ed.), Fatty acids in foods and their health implications, CRC Press, pp. 87 - 107.

Wood, J., Enser, M., Fisher, A., Nute, G., Sheard, P., Richardson, R., Hughes, S., Whittington, F., 2008. Fat deposition, fatty acid composition and meat quality: A review. Meat science (78), 343-358.

Wood, J.D., Richardson, R.I., Nute, G.R., Fisher, A.V., Campo, M.M., Kasapidou, E., Sheard, P.R., Enser, M., 2004. Effects of fatty acids on meat quality: a review. Meat science (66), 21-32.

Woods, V.B., Fearon, A.M., 2009. Dietary sources of unsaturated fatty acids for animals and their transfer into meat, milk and eggs: A review. Livestock Science (126), 1-20.


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ISSN: 243456

U. of  K. J. Vet. Med. Anim. Prod.