Evaluation of Quality Parameters of Apple Juices Using Near-Infrared Spectroscopy and Chemometrics
Joint Authors
Włodarska, Katarzyna
Khmelinskii, Igor
Sikorska, Ewa
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-28
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Near-infrared (NIR) spectra were recorded for commercial apple juices.
Analysis of these spectra using partial least squares (PLS) regression revealed quantitative relations between the spectra and quality- and taste-related properties of juices: soluble solids content (SSC), titratable acidity (TA), and the ratio of soluble solids content to titratable acidity (SSC/TA).
Various spectral preprocessing methods were used for model optimization.
The optimal spectral variables were chosen using the jack-knife-based method and different variants of the interval PLS (iPLS) method.
The models were cross-validated and evaluated based on the determination coefficients (R2), root-mean-square error of cross-validation (RMSECV), and relative error (RE).
The best model for the prediction of SSC (R2 = 0.881, RMSECV = 0.277 °Brix, and RE = 2.37%) was obtained for the first-derivative preprocessed spectra and jack-knife variable selection.
The optimal model for TA (R2 = 0.761, RMSECV = 0.239 g/L, and RE = 4.55%) was obtained for smoothed spectra in the range of 6224–5350 cm−1.
The best model for the SSC/TA (R2 = 0.843, RMSECV = 0.113, and RE = 5.04%) was obtained for the spectra without preprocessing in the range of 6224–5350 cm−1.
The present results show the potential of the NIR spectroscopy for screening the important quality parameters of apple juices.
American Psychological Association (APA)
Włodarska, Katarzyna& Khmelinskii, Igor& Sikorska, Ewa. 2018. Evaluation of Quality Parameters of Apple Juices Using Near-Infrared Spectroscopy and Chemometrics. Journal of Spectroscopy،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1202548
Modern Language Association (MLA)
Włodarska, Katarzyna…[et al.]. Evaluation of Quality Parameters of Apple Juices Using Near-Infrared Spectroscopy and Chemometrics. Journal of Spectroscopy No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1202548
American Medical Association (AMA)
Włodarska, Katarzyna& Khmelinskii, Igor& Sikorska, Ewa. Evaluation of Quality Parameters of Apple Juices Using Near-Infrared Spectroscopy and Chemometrics. Journal of Spectroscopy. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1202548
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1202548