Figure 1. The detrending spectral data of pure corn, wheat and white pepper powder

From

Detection of Corn and Whole Wheat Adulteration in White Pepper Powder by Near Infrared Spectroscopy

Xin-wei Li, Rui Lu, Zhe-xuan Wang, Pei Wang, Li Zhang, Peng-xiao Jia

American Journal of Food Science and Technology. 2018, 6(3), 114-117 doi:10.12691/ajfst-6-3-5