Detection of milk fat in dairy products – an alternative approach
Milk fat is a highly valuable product, which is why accurate determination of its content in milk and milk products is very important. The use of the GC-FID method in our study proved to be very precise, as in the case of other authors, which signifies the importance of using this method to quantify milk fat. A total of 51 samples of dairy products were analyzed for fatty acid composition with particular attention to butyric acid. Butyric acid contents were in the range from 3.4 ± 0.73 in yogurt to 4.60 ± 0.08 in butter. Milk fat was in the range from 98.5 ± 4.77 in yogurt to 115.0 ± 1.73 in butter. Our results were in accordance with those of many other authors. Development of butyric acid and milk fat analyses in dairy products by GC-FID is essential for laboratories that must conduct analyses for food production, quality control during production, and inspection tasks for the import and export of these food products.