ResourceFood and Beverage
Dumas, an approved technology for nitrogen analysis in milk and milk products
4 Aug 2020This application note compares the two current international standards for determining nitrogen and total protein in milk and milk products, Kjeldahl via ISO 8968-1 (AOAC 991.20) and Dumas via ISO 14891. It is demonstrated that while both methods provide comparable results, there are significant cost savings and reduced waste using the Dumas technique, suggesting it is the method of choice for nitrogen analysis in dairy products.
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Food and Beverage AnalyzersFood and Beverage Analyzers are commonly used to provide information about the chemical composition, structure and physical properties of food materials.Food and Beverage ProcessingFood and Beverage Processing involves the preparation of food products for further analysis. Typical instrumentation includes blanchers, color sorters, cookers, grinders, and refrigeration. These are used to replicate the processes commonly used in the commercial preparation of food and beverages.Sample PreparationSample preparation can improve the quality and speed of separation techniques. Products to assist sample preparation include filtration equipment, evaporators, membranes and sieves.MilkMilk is a dairy product that contains lactose. It is consumed by infant mammals to provide nutrients from the mother. In 2008, the Chinese milk scandal saw the unlawful adulteration of powdered milk with melamine.NitrogenProtein Quantification