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Recent Advances in Portable and Handheld NIR Spectrometers and Applications in Milk, Cheese and Dairy Powders



Quality and safety monitoring in the dairy industry is required to ensure products meet a high/standard based on legislation and customer requirements. The need for non/destructive, low/cost and user/friendly process analytical technologies, targeted at operators (as the end/users) for routine product inspections is increasing. In recent years, the development and advances in sensing technologies have led to miniaturisation of near infrared (NIR) spectrometers to a new era. The new generation of miniaturised NIR analysers are designed as compact, small and lightweight devices with a low cost, providing a strong capability for on/site or on/farm product measurements. Applying portable and handheld NIR spectrometers in the dairy sector is increasing; however, little information is currently available on these applications and instrument performance. As a result, this review focuses on recent developments of handheld and portable NIR devices and its latest applications in the field of dairy, including chemical composition, on/site quality detection, and safety assurance (i.e., adulteration) in milk, cheese and dairy powders. Comparison of model performance between handheld and bench/top NIR spectrometers is also given. Lastly, challenges of current handheld/portable devices and future trends on implementing these devices in the dairy sector is discussed.

Published in: 
Research Gate
Food & Beverages
Date of Publication: 
October 1, 2021
Yuanyuan Pu / Dolores Pérez/Marín /Norah O'Shea / Ana Garrido / Varo
Teagasc | Agriculture and Food Development
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