Near-infrared probe as a quality control tool for milk powder blending processes

This study aims to evaluate the suitability and reliability of Process Analytical Tools (PAT) in monitoring milk powder blending process. The uniformity end point was predicted using Near-Infrared (NIR) probe, subsequently validated offline Fourier Transform Infrared Spectroscopy (FTIR). A standard formulation (SMF) made up 50% lactose, 40% skim powder, 10% whey protein concentrate used. Additionally, detection limit NIR probe investigated Vitamin C powder. average inline fixed reference (63.89 ± 2.06 min), dynamic conformity test (63.00 5.25 min) were comparable with FTIR measurement (56.6 0.71 min). three-component Partial Least Square Regression (PLSR) model constructed for C. is 0.11%, which higher than vitamin level commonly found most infant formula (0.035%).