A fast colorimetric method to estimate corn quality loss
2003
Tosi, E.A. | Re, E.D.
A fast method to estimate the loss of corn quality for wet milling as a result of excessive thermal treatment during drying is proposed. Proteins that remain soluble after drying were quantitatively extracted with a solution of phosphoric acid and ethanol. The soluble proteins were colorimetrically quantified using Coomasie Brillant Blue G dye and measuring at 595 nm. A decrease in absorbance values indicates a reduction in commercial quality of the corn. The application time of the proposed technique is approximately equal to 30 min.
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