2009
DOI: 10.1590/s1516-35982009000900029 View full text |Buy / Rent full text
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Abstract: RESUMONa análise do perfil de ácidos graxos monoinsaturados (AGM), os Bos taurus apresentaram os percentuais mais elevados de C14:1 cis9, C16:1 cis9, C18:1 cis9, ΣAGM e os menores de C18:1 trans. Os animais Bos taurus apresentaram maiores percentuais de C18:3 n-3, C20:4 n-6 e C22:5 n-3 (ácidos graxos poliinsaturados). Os ácidos graxos C18:2 n-6, CLA, C20:5 n-3, C22:6 n-3, ΣAGP e Σn-6 foram semelhantes entre grupos de bovinos. A razão n-6/n-3 foi menor em Bos taurus (4,63) em comparação aos Bos indicus (5,70). … Show more

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“…The high consumption of saturated fatty acids (SFA) is associated with high serum cholesterol and low density lipoproteins levels (LDL), which are risk factors for the occurrence of cardiovascular diseases (Katan, Zoock, & Mensink, 1994). The predominant SFA in the cattle meat fat are myristic, palmitic, and stearic fatty acids (FAs) (Lawrie, 2005;Rossato et al, 2009). The polyunsaturated fatty acids (PUFA) present in the beef fat such as linoleic (C18:2n-6) and linolenic (C18:3n-3), and monounsaturated (MUFA) as oleic acid (C18:1n-9), provide protection to the cardiovascular system, once the balanced consumption of them is associated with reduce serum cholesterol and an increase in high density lipoprotein (HDL) (Pensel, 1998;Tapiero, Nguyen-Ba, Couvreur, & Tew, 2002).…”
Section: Introductionmentioning
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“…The high consumption of saturated fatty acids (SFA) is associated with high serum cholesterol and low density lipoproteins levels (LDL), which are risk factors for the occurrence of cardiovascular diseases (Katan, Zoock, & Mensink, 1994). The predominant SFA in the cattle meat fat are myristic, palmitic, and stearic fatty acids (FAs) (Lawrie, 2005;Rossato et al, 2009). The polyunsaturated fatty acids (PUFA) present in the beef fat such as linoleic (C18:2n-6) and linolenic (C18:3n-3), and monounsaturated (MUFA) as oleic acid (C18:1n-9), provide protection to the cardiovascular system, once the balanced consumption of them is associated with reduce serum cholesterol and an increase in high density lipoprotein (HDL) (Pensel, 1998;Tapiero, Nguyen-Ba, Couvreur, & Tew, 2002).…”
Section: Introductionmentioning
“…High consumption of saturated fatty acids (SFA) is associated with increased serum levels of cholesterol and low-density lipoproteins (LDL), considered risk factors for the occurrence of cardiovascular disease [ 1 ]. The SFAs prevalent in beef fat are the myristic (C14:0), palmitic (C16:0) and stearic (C18:0) fatty acids [ 2 , 3 ]. The polyunsaturated fatty acids (PUFA) present in beef, such as linoleic (C18:2 n-6) and linolenic (C18:3 n-3), and monounsaturated (MUFA), as oleic acid (C18:1 n-9) protect the cardiovascular system, since moderate consumption has been linked to decreasing serum cholesterol and increasing high-density lipoprotein (HDL) [ 4 – 6 ].…”
Section: Introductionmentioning
“…Os ácidos graxos da gordura de bovinos podem ser afetados por: a) variação entre animais na deposição de gordura intramuscular , na expressão da D 9 , D 6 e D 5 dessaturase e elongase (Yang et al, 1999;Rossato et al, 2009) e no metabolismo da biohidrogenação (Wood et al, 2008); b) variação na composição da gordura e disponibilidade de n-6 e n-3 na dieta (Goffman & Böhme, 2001;Boufaied et al, 2003), no tamanho das partículas e no tempo de permanência no rúmen (Wood et al, 2008); e c) variação nas condições ambientais às quais são submetidos os animais (Dannenberger et al, 2006). Geralmente, a composição lipídica é mais benéfica à dieta humana em carnes de ruminantes terminados a pasto (French et al, 2000).…”
Section: Introductionunclassified