RT info:eu-repo/semantics/article T1 Bread fermentation monitoring through NIR spectroscopy and PLS-DA. Determining the optimal fermentation point in bread doughs A1 Castro Reigía, David A1 García, Inmaculada A1 Sanllorente Méndez, Silvia A1 Sarabia Peinador, Luis Antonio A1 Amigo, José Manuel A1 Ortiz Fernández, Mª Cruz K1 Bread fermentation K1 NIR spectroscopy K1 Monitorization K1 PLS-DA K1 Sensitivity K1 Specifity K1 Química analítica K1 Chemistry, Analytic K1 Alimentos K1 Food K1 Biotecnología K1 Biotechnology AB Dough fermentation is a fundamental step in bread manufacturing, commonly supervised by bakery experts. This work aims to develop an efficient technology based on near infrared spectroscopy (NIR) and partial least squares-discriminant analysis (PLS-DA) to determine the fermentation state of bread loaves in the bakery industry. Knowing the fermentation state of the loaves during the manufacturing will allow to act in the production line, avoiding introducing an inadequate loaf in the oven and reducing costs. For that, a new methodology is proposed that consists in reproducing the knowledge of a Master Baker through a NIR spectrometer. Regarding the sequentiality of the objects and the real applicability of the method, three different cases were proposed using PLS-DA, getting that, in the best case, the sensitivity of the prediction set for the unfermented doughs was 88% and for the fermented and over-fermented was 86%; whereas the specificities were all greater than 86%. PB Elsevier SN 0260-8774 YR 2024 FD 2024-01 LK http://hdl.handle.net/10259/9279 UL http://hdl.handle.net/10259/9279 LA eng NO The authors thank IPASA-Sanbrandan (INDUSTRIALES PANADEROS AGRUPADOS S.A.) for allowing the measurements in their facilities and the entities for financial support. DS Repositorio Institucional de la Universidad de Burgos RD 23-nov-2024