Got Milk Fat? Using NIR Spectroscopy to Detect Fat Content in Milk
Near-infrared (NIR) spectroscopy is an effective solution for inspecting raw materials, analyzing composition, optimizing processes, and detecting fraudulent activities in the food industry. NIR instruments provide high-speed, non-destructive capabilities, making them ideal for conducting confirmatory testing of food product composition. They can effortlessly detect parameters such as water, proteins, and fats, which is especially important in industries like the dairy industry, where fat content is strictly regulated. In this application note, a regression model was developed to differentiate between whole, skim, and reduced-fat milk from two different manufacturers using NIR spectroscopy. While the experiment was relatively simple and required more samples and a confirmatory technique for validation, it demonstrated the method’s applicability.