Fatty acid composition of polar and neutral meat lipids of goats browsing in native pasture of Brazilian Semiarid

被引：9

作者：

Fonteles, Natalia L. O. ^{[1
]}

Alves, Susana P. ^{[2
]}

Madruga, Marta Suely ^{[3
]}

Queiroga, Rita R. E. ^{[4
]}

Andrade, Albericio P. ^{[1
]}

Silva, Divan S. ^{[1
]}

Leal, Amanda P. ^{[1
]}

Bessa, Rui J. B. ^{[2
]}

Medeiros, Ariosvaldo N. ^{[1
]}

机构：

[1] Univ Fed Paraiba, Ctr Ciencias Agr, Dept Zootecnia, BR-58397000 Areia, Paraiba, Brazil

[2] Univ Lisbon, Fac Med Vet, CIISA, P-1300477 Lisbon, Portugal

[3] Univ Fed Paraiba, Ctr Tecnol, Dept Engn Alimentar, BR-58051900 Joao Pessoa, Paraiba, Brazil

[4] Univ Fed Paraiba, Ctr Ciencias Saude, Dept Nutr, BR-58051900 Joao Pessoa, Paraiba, Brazil

来源：

MEAT SCIENCE | 2018年 / 139卷

关键词：

Goat meat; neutral lipids; polar lipids; fatty acids; Caatinga pasture; semiarid; LONGISSIMUS-THORACIS; RUMINANT MEAT; MUSCLE; CONCENTRATE; QUALITY; TISSUES; GRASS; LAMBS; SUPPLEMENTATION; PLASMALOGENS;

D O I：

10.1016/j.meatsci.2018.01.021

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Thirty six male goats grazing Caatinga native pasture were randomly assigned to 4 concentrate supplementation levels (0, 5, 10 and 15 g/kg of body weight) and slaughtered after 120 days. Longissimus muscle meat lipids were extracted and fractionated into neutral (NL) and polar (PL) lipids. Supplementation of grazing goats increased linearly (P < 0.05) intramuscular fat (1 to 1.5% of meat) and NL (0.3 to 1% of meat) but decreased linearly (P = 0.044) the PL (0.66 to 0.50% of meat). On NL, supplementation increased linearly (P = 0.047) the proportion of c9-18:1 (31 to 40% of FA) with supplementation. On PL, supplementation reduced linearly (P < 0.03) the dimethyl acetals, 18:3n-3 and most of long chain polyunsaturated FA (PUFA) proportions but increased linearly (P < 0.001) the c9-18:1. Considering the total meat FA, supplementation led to an increase of the saturated and monounsaturated FA contents and a decrease of the long chain n-6 and n-3 PUFA contents.

引用

页码：149 / 156

页数：8

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