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Ivonne Domínguez-Martínez,Ofelia Gabriela Meza-Márquez,Guillermo Osorio-Revilla,José Proal-Nájera,Tzayhrí Gallardo-Velázquez 한국응용생명화학회 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.1
Fourier transform mid-infrared (Mid-FTIR) spectroscopyin conjunction with multivariate analysis was used to predict thecapsaicin content, ascorbic acid, total phenolic compounds, andantioxidant activity of Capsicum annuum L. variety serrano. Twomultivariate calibrations, partial least square (PLS), and principalcomponent regression (PCR) were optimized to construct thecalibration models. The best models used to quantify the abovementioned compounds were obtained with the PLS algorithm andcoefficients of determination (R2) greater than 0.998 as well as astandard error calibration less than 0.098. The results demonstratedthat Mid-FTIR spectroscopy in combination with multivariateanalysis can be effectively used for to quantify the capsaicin,ascorbic acid, total phenol content, and antioxidant activity ofCapsicum annuum var. serrano. Mid-FTIR spectroscopy incombination with multivariate calibration offers rapid, easy samplepreparation, is environmentally friendly, and is operationallyuncomplicated, demonstrating the significant advantages of thechemometric models compared with conventional methods ofanalysis.