Application of NIR Spectral Standardization Based on Principal Component Score Evaluation in Wheat Flour Crude Protein Model Sharing

Table 1

Distribution of crude protein content in wheat flour of different sample sets.

Sample set	Number	Scope/% (w/w)	Average/% (w/w)	Standard deviation	Coefficient of variation
Total set	154	6.71∼14.83	10.16	1.78	0.18
Calibration set	92	6.71∼14.83	10.20	1.92	0.19
Prediction set	62	7.02∼14.40	10.17	1.57	0.15