The application of near-infrared (NIR) and Raman spectroscopy to detect adulteration of oil used in animal feed production

► Detection of oil adulteration used in animal feed industry. ► NIRS and Raman produce models with R2 values greater than 0.97. ► Application of Cooman's plots to detect levels of contamination. ► Quick and inexpensive method for the detection of contaminants.