Dias L G, Correia D M, Sá-Morais J, Sousa F, Pires J M, Peres A M
CIMO - Mountain Research Centre, Escola Superior Agrária de Bragança, Instituto Politécnico de Bragança.
CIMO - Mountain Research Centre, Escola Superior Agrária de Bragança, Instituto Politécnico de Bragança; LSRE - Laboratory of Separation and Reaction Engineering, Escola Superior Agrária de Bragança, Instituto Politécnico de Bragança, Quinta de Santa Apolónia, Apartado 1172, 5301-855 Bragança, Portugal.
Food Chem. 2008 Aug 15;109(4):840-7. doi: 10.1016/j.foodchem.2008.01.008. Epub 2008 Jan 20.
Consumers are very concerned in "Protected Designation of Origin" (PDO) products, namely meat, since they associate these products to quality and healthy foods. Thus, it is necessary to implement analytical methodologies that could assure consumers about the products they purchase. Since this kind of meat is usually sold with no information concerning cattle sex, age and slaughter season, these characteristics were intentionally not taken into account. In this study, two Portugueses PDO bovine breeds (Mirandesa and Barrosã) and two production sub-systems (traditional and organic farming) were studied during a two-year period. Statistical analysis showed that production system and breed had a significant effect on the overall raw meat fatty acids (FA) content. Besides, the FA profiles could be used as an effective tool to differentiate the four groups studied allowing a 100% correct classification. The meat FA content was also correlated with the relative importance of the animal feeding stuff area.
消费者非常关注“原产地保护”（PDO）产品，即肉类，因为他们将这些产品与优质健康食品联系在一起。因此，有必要实施一些分析方法，以便向消费者保证他们所购买产品的质量。由于这类肉类通常在销售时不提供有关牛的性别、年龄和屠宰季节的信息，所以本研究有意未考虑这些特征。在本研究中，对两个葡萄牙PDO牛品种（米兰达牛和巴罗萨牛）以及两种生产子系统（传统养殖和有机养殖）进行了为期两年的研究。统计分析表明，生产系统和品种对生肉中脂肪酸（FA）的总体含量有显著影响。此外，脂肪酸谱可作为区分所研究的四组的有效工具，分类正确率达100%。肉中脂肪酸含量还与动物饲料领域的相对重要性相关。
