TY - JOUR
T1 - Oil Oxidation in Corn Flour from Grains Processed with Alkaline Cooking by Use of Peroxide Value, UV and FTIR
AU - Yahuaca-Juárez, B.
AU - Martínez-Flores, H. E.
AU - Huerta-Ruelas, J. A.
AU - Pless, R. C.
AU - Vázquez-Landaverde, P. A.
AU - Tello Santillán, R.
PY - 2013/3
Y1 - 2013/3
N2 - The objective of this work was to evaluate the effect of alkaline cooking on the oxidative stability of oil in corn flour. A central composite design was used to study the combined effect of lime concentration (%) and steep time (h) on peroxide value (PV); specific extinction coefficients at 232 and 270 nm (K232 and K270); and FTIR absorbance at 3009 cm-1, 3444 cm-1, and 3530 cm-1 in oils from corn flour obtained by alkaline cooking. The results indicate that lime concentration and steep time affected the PV, K232, and K270. A decrease of 2.56 % was observed in the IR absorption bands, corresponding to the polyunsaturated fatty acids. The FTIR spectra also showed absorption bands related to the secondary oil oxidation products.
AB - The objective of this work was to evaluate the effect of alkaline cooking on the oxidative stability of oil in corn flour. A central composite design was used to study the combined effect of lime concentration (%) and steep time (h) on peroxide value (PV); specific extinction coefficients at 232 and 270 nm (K232 and K270); and FTIR absorbance at 3009 cm-1, 3444 cm-1, and 3530 cm-1 in oils from corn flour obtained by alkaline cooking. The results indicate that lime concentration and steep time affected the PV, K232, and K270. A decrease of 2.56 % was observed in the IR absorption bands, corresponding to the polyunsaturated fatty acids. The FTIR spectra also showed absorption bands related to the secondary oil oxidation products.
KW - Alkaline cooking
KW - Corn oil
KW - Stability oxidative
UR - http://www.scopus.com/inward/record.url?scp=84874658045&partnerID=8YFLogxK
U2 - 10.1007/s11130-012-0332-y
DO - 10.1007/s11130-012-0332-y
M3 - Artículo
SN - 0921-9668
VL - 68
SP - 65
EP - 71
JO - Plant Foods for Human Nutrition
JF - Plant Foods for Human Nutrition
IS - 1
ER -