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Elemental analyzers

HOW TO DETERMINE NITROGEN AND PROTEIN WITH THE DUMAS AND KJELDAHL METHODS: THE CASE OF NITROGEN FRACTIONS IN MILK

23/06/2021

Join this exclusive webinar in collaboration with SelectScience to discover how to determine nitrogen and protein with the Dumas and Kjeldahl methods. The case of nitrogen fractions in milk will unveil unique characteristics, advantages, and differences associated with these two techniques.

Many decision makers and laboratory operators are undecided between the Dumas or the Kjeldahl technique for N/Protein determination. These specialized techniques are the primary methods used for nitrogen and protein determination, but can differ in many aspects, including their speed and safety.

In this masterclass, join specialists from VELP Scientifica to learn about the methods, analytical procedures, and results for nitrogen and protein determination. Key evidence will be revealed by presenting the analysis of non-casein nitrogen (NCN) and non-protein nitrogen (NPN) fractions in milk with the Dumas and Kjeldahl methods.

The case of nitrogen fractions in milk will unveil unique characteristics, advantages, and differences associated with these two techniques. After an analytical overview, results will be discussed, and the main steps of a combustion analysis will be presented, alongside a dedicated lab demo.

Key learning objectives

  • Chemistry of N/Protein determination
  • Kjeldahl method and analytical procedures
  • Dumas method and analytical procedures
  • N/Protein and nitrogen fractions in milk discussion
  • Lab demo: Focus on Dumas

Presenters

Presenters
Irene Garcia Borrero - VELP Product Specialist
Irene Garcia Borrero is a scientist of VELP Analytical Department being responsible for the development of new analytical methods in accordance with official regulations. Irene has a degree in Chemical Engineering and good knowledge of methods and process development in the food industry.


Corey Letizio - VELP Sales Manager
Corey Letizio is the Midwest Regional Sales Manager for VELP Scientifica and has been involved in the analytical instrumentation field his entire career. Corey has extensive knowledge in the dairy, grain, feed, and general food and agricultural industries.


Carrie Haslam - Associate Editor SelectScience
Carrie Haslam is an Associate Editor at SelectScience, playing a key role in content production and specializing in Alzheimer’s disease and clinical diagnostics. She has her Ph.D. from Plymouth University, where she developed graphene-based biosensors for the early diagnosis of Alzheimer’s disease.

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