Figure 2

Analysis of sample processing process efficiency and identified metabolites: (A) Parity plot for 13C-labeled l-valine for comparison of metabolites extraction efficiency of (i) SC, (ii) FTC, (iii) FTC + SC. (B) PCA analysis (C) Venn diagram illustrating the overlapping and SC, FTC and FTC + SC metabolite extraction protocol-specific differential metabolites. The data included information generated using 36 independent replicate samples for each metabolite extraction method.