Browsing NOFIMA vitenarkiv by Author "Monago-Maraña, Olga"
Now showing items 1-6 of 6
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Non on-destructive fluorescence spectroscopy combined with second-order calibration as a new strategy for the analysis of the illegal Sudan I dye in paprika powder
Monago-Maraña, Olga; Eskildsen, Carl Emil Aae; Muñoz de la Peña, Arsenio; Galeano-Díaz, Teresa; Wold, Jens Petter (Peer reviewed; Journal article, 2020)This paper presents a novel strategy for determination of the illegal dye Sudan I in paprika powder. The method is based on fluorescence spectroscopy combined with second-order calibration, which was employed for the first ... -
Quantification of soluble solids and individual sugars in apples by Raman spectroscopy: A feasibility study
Monago-Maraña, Olga; Afseth, Nils Kristian; Knutsen, Svein Halvor; Wubshet, Sileshi Gizachew; Wold, Jens Petter (Journal article; Peer reviewed, 2021)This study reports the feasibility of using Raman spectroscopy for quantification of soluble solids and individual sugars in apples. Six different commercial apple varieties were measured by Raman spectroscopy at three ... -
Raman spectroscopy as a tool for characterisation of quality parameters in Norwegian grown apples during ripening
Monago-Maraña, Olga; Wold, Jens Petter; Remberg, Siv Fagertun; Sanden, Karen Wahlstrøm; Afseth, Nils Kristian (Peer reviewed; Journal article, 2024)This study shows for the first time the feasibility of Raman spectroscopy as a non-destructive method to follow the ripening process of apple fruits. Two different varieties of apples were studied: ‘Aroma’ and ‘Elstar’. ... -
Raman, near-infrared and fluorescence spectroscopy for determination of collagen content in ground meat and poultry by-products.
Monago-Maraña, Olga; Wold, Jens Petter; Rødbotten, Rune; Dankel, Elin Katinka; Afseth, Nils Kristian (Journal article, 2021)Raman, near-infrared and fluorescence spectroscopy were evaluated for determination of collagen content in ground meat. Two sample sets were used (i.e. ground beef and ground poultry by-products), and collagen concentrations ... -
Second-order calibration in combination with fluorescence fibre-optic data modelling as a novel approach for monitoring the maturation stage of plums
Monago-Maraña, Olga; Domínguez-Manzano, Jaime; de la Peña, Arsenio Muñoz; Durán-Merás, Isabel (Peer reviewed; Journal article, 2020)In this work, non-destructive autofluorescence of plums was employed to study the chlorophylls’ concentration evolution along the maturation process. For that, excitation-emission matrices (EEMs), containing full fluorescence ... -
Untargeted classification for paprika powder authentication using visible – Near infrared spectroscopy (VIS-NIRS).
Monago-Maraña, Olga; Eskildsen, Carl Emil Aae; Galeano-Diaz, Teresa; Munoz de la Pena, Arsenio; Wold, Jens Petter (Peer reviewed; Journal article, 2020)This paper presents a novel strategy for determination of the illegal dye Sudan I in paprika powder. The method is based on fluorescence spectroscopy combined with second-order calibration, which was employed for the first ...