TY - JOUR
T1 - FT-MIR spectroscopy and multivariate analysis for determination of bioactive compounds and antioxidant capacity in Cabernet Sauvignon wines
AU - Grijalva-Verdugo, Claudia
AU - Hernández-Martínez, Maylet
AU - Meza-Márquez, Ofelia Gabriela
AU - Gallardo-Velázquez, Tzayhri
AU - Osorio-Revilla, Guillermo
N1 - Publisher Copyright:
© 2018 The Author(s).
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Thirty samples of Cabernet Sauvignon Mexican wines from 5 wine regions, 19 wineries and vintage between 2004 and 2012 were characterised regarding total phenolic compounds (TPC), anthocyanins (AC), tannins (TC), flavonoids (FC) and antioxidant capacity (ABTS and DPPH assays). Samples were processed using Fourier transform mid-infrared spectroscopy combined with partial least squares regression (PLS1 and PLS2) and principal components regression algorithms to obtain one optimised chemometric model for each algorithm. The spectral region selected for each model was between 1550 and 824 cm−1. The PLS1 model showed the best predictive capacity for simultaneous prediction of the six parameters. Excellent values of the coefficient of determination in validation (Rv2;0.93–0.95) and residual predictive deviation (RPD; 4.28–6.95) were obtained for TPC, FC, ABTS and DPPH. Suitable values of Rv2 (0.91–0.92) and RPD (3.75–3.84) were obtained for TC and AC.
AB - Thirty samples of Cabernet Sauvignon Mexican wines from 5 wine regions, 19 wineries and vintage between 2004 and 2012 were characterised regarding total phenolic compounds (TPC), anthocyanins (AC), tannins (TC), flavonoids (FC) and antioxidant capacity (ABTS and DPPH assays). Samples were processed using Fourier transform mid-infrared spectroscopy combined with partial least squares regression (PLS1 and PLS2) and principal components regression algorithms to obtain one optimised chemometric model for each algorithm. The spectral region selected for each model was between 1550 and 824 cm−1. The PLS1 model showed the best predictive capacity for simultaneous prediction of the six parameters. Excellent values of the coefficient of determination in validation (Rv2;0.93–0.95) and residual predictive deviation (RPD; 4.28–6.95) were obtained for TPC, FC, ABTS and DPPH. Suitable values of Rv2 (0.91–0.92) and RPD (3.75–3.84) were obtained for TC and AC.
KW - Antioxidant activity
KW - Bioactive compounds
KW - Chemometrics
KW - FT-MIR spectroscopy
KW - Mexican cabernet sauvignon wines
UR - http://www.scopus.com/inward/record.url?scp=85054866038&partnerID=8YFLogxK
U2 - 10.1080/19476337.2018.1428224
DO - 10.1080/19476337.2018.1428224
M3 - Artículo
SN - 1947-6337
VL - 16
SP - 561
EP - 569
JO - CYTA - Journal of Food
JF - CYTA - Journal of Food
IS - 1
ER -