Paszczyk Beata, Czarnowska-Kujawska Marta, Klepacka Joanna, Tońska Elżbieta
Department of Commodity and Food Analysis, The Faculty of Food Sciences, University of Warmia and Mazury in Olsztyn, 10-726 Olsztyn, Poland.
Animals (Basel). 2023 Mar 2;13(5):907. doi: 10.3390/ani13050907.
The present study aimed to determine the content of health-promoting compounds, and fatty acids, with particular emphasis on the content of 911 C18:2 (CLA) acid, selected minerals, folates in organic and commercial goat's milk and fermented goat's milk drinks. The analyzed milk and yoghurts had various contents of particular groups of fatty acids, CLA, minerals, and folates. Raw organic goat's milk had a significantly ( < 0.05) higher content of CLA (3.26 mg/g fat) compared to commercial milk (2.88 mg/g fat and 2.54 mg/g fat). Among the analyzed fermented goat's milk drinks, the highest CLA content (4.39 mg/g fat) was determined in commercial natural yoghurts, while the lowest one was in organic natural yoghurts (3.28 mg/g fat). The highest levels of calcium (1322.9-2324.4 µg/g), phosphorus (8148.1-11,309.9 µg/g), and copper (0.072-0.104 µg/g) were found in all commercial products and those of manganese (0.067-0.209 µg/g) in organic products. The contents of the other assayed elements (magnesium, sodium, potassium, iron, and zinc) did not depend on the production method, but only on the product type, i.e., the degree of goat's milk processing. The highest folate content in the analyzed milks was found in the organic sample (3.16 µg/100 g). Organic Greek yoghurts had a several times higher content of folates, reaching 9.18 µg/100 g, compared to the other analyzed fermented products.
本研究旨在测定有机山羊奶和市售山羊奶以及发酵山羊奶饮品中促进健康的化合物和脂肪酸的含量,尤其着重于9,11 - C18:2(共轭亚油酸,CLA)酸、特定矿物质和叶酸的含量。所分析的牛奶和酸奶中,特定脂肪酸组、CLA、矿物质和叶酸的含量各不相同。与市售牛奶(2.88 mg/g脂肪和2.54 mg/g脂肪)相比,生鲜有机山羊奶中CLA的含量显著更高(P < 0.05)(3.26 mg/g脂肪)。在所分析的发酵山羊奶饮品中,市售天然酸奶中的CLA含量最高(4.39 mg/g脂肪),而有机天然酸奶中的含量最低(3.28 mg/g脂肪)。在所有市售产品中发现钙(1322.9 - 2324.4 μg/g)、磷(8148.1 - 11,309.9 μg/g)和铜(0.072 - 0.104 μg/g)的含量最高,而在有机产品中锰(0.067 - 0.209 μg/g)的含量最高。其他测定元素(镁、钠、钾、铁和锌)的含量不取决于生产方法,而仅取决于产品类型,即山羊奶的加工程度。在所分析的牛奶中,有机样品中的叶酸含量最高(3.16 μg/100 g)。与其他分析的发酵产品相比,有机希腊酸奶中的叶酸含量高出数倍,达到9.18 μg/100 g。