Determination of the Authenticity of Orange Juice by Discriminant Analysis of near Infrared Spectra
- 1 January 1993
- journal article
- research article
- Published by SAGE Publications in Journal of Near Infrared Spectroscopy
- Vol. 1 (1) , 33-44
- https://doi.org/10.1255/jnirs.4
Abstract
Near infrared spectroscopy was used to discriminate between three sources of orange juice. Three pretreatments and five data transformations to improve discrimination were compared. Principal components analysis of 92 calibration samples was followed by canonical variates analysis using up to 25 principal components. Success rates were compared across pretreatments and transformations for the calibration and test data (50 samples). 100% prediction success was obtained with 25 principal components following no pretreatment and no transformation. Principal component loadings were interpretable.Keywords
This publication has 5 references indexed in Scilit:
- Classification of Commercial Skim Milk Powders According to Heat Treatment Using Factorial Discriminant Analysis of Near-Infrared Reflectance SpectraApplied Spectroscopy, 1990
- Standard Normal Variate Transformation and De-Trending of Near-Infrared Diffuse Reflectance SpectraApplied Spectroscopy, 1989
- Application of Multidimensional Analyses to the Extraction of Discriminant Spectral Patterns from NIR SpectraApplied Spectroscopy, 1988
- Linearization and Scatter-Correction for Near-Infrared Reflectance Spectra of MeatApplied Spectroscopy, 1985
- The Use of Principal Components in the Analysis of Near-Infrared SpectraApplied Spectroscopy, 1985