Performance Evaluation of Fiber Near-Infrared (NIR) Optic Probes for Quality Control of Curd Hardness in Cheese Produced by Spray-Dried Milk
Meza, Lesther (Universidad Nacional de Agricultura (Olancho, Honduras))
Aleman, Ricardo S. (Louisiana State University Agricultural Center)
Jhunior Abrahan, Jhunior (Universidad Nacional de Agricultura (Olancho, Honduras))
Yadav, Ajitesh (Iowa State University. Department of Food Science and Human Nutrition)
Castillo, Manuel (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)

Date:	2023
Abstract:	This study aims to provide the dairy industry with a direct control model focused on milk coagulation by using multifiber probes to determine parameters in the curding process, such as cutting time, at a lower cost. The main objective of the research is to confirm that a multifiber NIR light scattering probe can be used to predict the elastic modulus of curd during milk coagulation in cheese production. Two randomized complete block designs were used with a 3 × 3 factorial arrangement of three protein levels (3%, 3. 5% and 4%) and three wavelengths (870 nm, 880 nm and 890 nm). Using a multifiber probe at a wavelength of 880 nm allowed obtaining a better optical response of the sensor during enzymatic milk coagulation than the 870 nm. It showed greater sensitivity to variations in the protein content of the milk and lower variation in the response. The multifiber probe at a wavelength of 880 nm generated a NIR light backscatter profile like those obtained with other systems. The results showed that the prediction model parameters had a variation as a function of the protein content, which opens the possibility of improving the prediction model's performance substantially. Furthermore, the initial voltage obtained with the probe responded linearly to the different protein levels in milk. This fact would make it possible, at least theoretically, to estimate protein concentration with the same inline probe for G' determination, facilitating the incorporation of a corrective protein factor in the prediction models using a single instrument.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Multifiber probe ; Coagulation ; Prediction ; Spray-dried milk
Published in:	Spectroscopy journal, Vol. 1 Núm. 3 (20 November 2023) , p. 152-162, ISSN 2813-446X

DOI: 10.3390/spectroscj1030013

11 p, 1.1 MB

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