作者: M.A. Rios-Corripio , M. Rojas-López* , R. Delgado-Macuil
DOI: 10.1080/19476337.2011.596576
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摘要: Attenuated total reflectance-Fourier transform infrared (ATR–FTIR) spectroscopy and multivariate analysis were used to study honey intentionally adulterated with standard sugar solutions (glucose, fructose sucrose), also cheap syrups (corn, inverted cane sugar). By using the principal component (PCA) method on pure (0–100%) samples, determination of type adulterant was realized in an easy way through use two- three-dimensional PCA score plots. From this analysis, a tetrahedral structure obtained. Superior vertex is formed by set samples honey, whereas edges are sugars. Partial least squares employed develop optimal calibrations for six adulterants used, obtaining values error calibration range 0.377–0.583 prediction 1.550–3.150 sugars, which suggest good predictive capacity model emp...