FT-NIR Spectroscopy for Analysis of Fluid Dairy Samples
Near-Infrared (NIR), Infrared (IR), and Raman Spectroscopy compose what is known as Vibrational Spectroscopy. The introduction of Fourier Transform (FT) spectrometers for IR and NIR spectroscopy delivered significant improvements in instrument stability, sensitivity, and measurement speed. These improvements resulted in the design of instruments to perform compositional analysis of dairy products. FT-IR has long been the dominant technology for measuring fluid dairy products, while FT-NIR has been the preferred method for measurements of powders, cheese, and cultured products.
FT-NIR provides advantages for compositional analysis of fluid dairy products. ISO 21543 / IDF 201 second edition in 2020 provides guidelines for the application of FT-NIR to the compositional analysis of Milk and Milk Products, expanding on the standards for measurement of powders, cheese, and cultured samples published in 2006.
In this presentation, we will examine the similarities and differences between FT-IR and FT-NIR for the measurement of milk and milk products and how these differences impact the measurement of milk, cream, ice cream mixes, and products produced by membrane filtration.
Examples of typical instrument performance for Milk and Milk products will be presented, including Repeatability, Reproducibility, and long-term measurement stability for different fluid dairy products.
Andy Powers
VP Technical Services at American Dairy Products Institute (ADPI)
Andy brings over 30 years of commercial, scientific, and technical (QA/Regulatory/Food Safety) experience to ADPI where he is Vice President of Technical Services and serves on ADPI's Center of Excellence. Prior to ADPI, Andy most recently worked for Newton Enterprises as VP & Senior Consultant. He has also held positions at Hoogwegt U.S./Lone Star Dairy, Archer Daniels Midland Company, Akorn Pharmaceuticals, and Biosys Biotech, Inc. It should be noted that during his tenure at Hoogwegt US/Lone Star Dairies, Andy served on ADPI’s Technical and Standards Committees.
Andy is a graduate of the University of Illinois at Urbana-Champaign and holds both a Bachelor of Science degree in Molecular Biology, and a Master of Business Administration. He is a current member of the American Chemical Society, and the American Society for Quality. In addition, he is a Certified Lead Auditor & Practitioner – Safe Quality Food(SQF) Institute; Certified Lead Auditor – HACCP & ISO 9000; and a member of Beta Gamma Sigma International Business Honor Society.
Andy and his family reside in Queen Creek, Arizona.
Dean Roberts
Director of New Market Development at Bruker Scientific, LLC
Dean Roberts is currently the Director of Technology and Market Development for Bruker Applied Spectroscopy, focusing on expanding the use of FTIR, FT-NIR and Raman spectroscopy for quality control, process monitoring, and other industrial applications.
Dean obtained a BS in chemistry from the University of Wisconsin – Madison in 1982. After several years working in quality control laboratories, Dean joined Mattson Instruments as an Application Scientist working with FTIR spectrometers. Dean joined Bruker Optics in 1999 as the Midwest Regional Sales Manager, later moving into management roles within Bruker Optics.
Dean’s current areas of interest include development of new applications for both benchtop analyzers and in-line systems for Dairy and Biopharma manufacturing operations.
