Influence of Sex on the Physical-chemical Characteristics of Abdominal Chicken Fat

被引：10

作者：

Marx, S. D. ^{[1
]}

Soares, J. M. ^{[1
]}

Prestes, R. C. ^{[2
]}

Schnitzler, E. ^{[3
]}

Oliveira, C. S. ^{[3
]}

Demiate, I. M. ^{[1
,3
]}

Backes, G. T. ^{[1
]}

Steffens, J. ^{[1
]}

机构：

[1] Integrated Reg Univ URI, Dept Food Engn, Erechim, RS, Brazil

[2] Univ Fed Santa Maria, Dept Technol & Food Sci, Grad Program Food Sci & Technol PPGCTA, Santa Maria, RS, Brazil

[3] State Univ Ponta Grossa UEPG, Grad Program Food Sci & Technol PPGCTA, Ponta Grossa, PR, Brazil

来源：

BRAZILIAN JOURNAL OF POULTRY SCIENCE | 2016年 / 18卷 / 02期

关键词：

Fatty acids; raw material; DSC; byproducts; CARCASS QUALITY; ENERGY-LEVELS; MEAT QUALITY; BROILERS; PERFORMANCE; DIETS; OIL;

D O I：

10.1590/1806-9061-2015-0072

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The aim of this study was to determine if sex influenced abdominal fat yield, chemical composition, pH, color, fatty acid profile, and stability (by Differential Scanning Calorimetry - DSC) of Cobb chickens. Abdominal fat yields of 1.86 and 1.49% were obtained for females and males, respectively. Abdominal fat lipid contents of 70.68 and 74.36 g/100g, moisture content of 27.87 and 24.09 g/100g, protein content of 0.91 and 0.95 g/100g, ash content of 0.038 and 0.041 g/100g were obtained in males and females, respectively. Fat pH was not different between sexes, with values of 6.71 for males and 6.63 for females (p< 0.05). Color L* values of 58.67 and 55.42, a* values of 4.95 and 3.44, and b* values of 7.36 and 8.18 were obtained for males and females, respectively. Female abdominal fat contained higher proportion of oleic acid (53.87%) followed by palmitic acid (30.07%), whereas 34.69% palmitic acid, 31.92% oleic acid, and 25.30% linoleic acid were determined in males. The proportions of the evaluated fatty acids were significantly different (p>0.05) between males and females, except for palmitic acid. The DSC analysis showed no significant difference (p> 0.05) between sexes for melting and crystallization points. It was concluded that sex influences abdominal chicken fat yield, chemical composition, color, and DSC parameters.

引用

页码：269 / 275

页数：7

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