Analysis of flavor formation and metabolite changes during production of Double-Layer Steamed Milk Custard made from buffalo milk
Fig 2
(a) 3D topographic plot; The horizontal coordinate of the signal peak indicates the drift time of VOC, the vertical coordinate indicates measurement run time, and the volume of the signal peak indicates the concentration of VOC. (b) 2D topographic plots; The color spots on either side of the reactive ion peak (RIP) represent the response signal peaks of the substance, and their shades indicate the concentration of that substance. Using group A as a control, blue spots signify that the flavor compounds are below the values of group A, while red spots indicate higher values than group A. (c) Gallery plot. “M” represents monomer, and “D” stands for dimer. (d) PLS-DA score plots and (e) VIP values of samples during different processing.