Fig. 6

Principal component analysis of the quantified metabolites in A batch lactose timepoint from day 2 and B glucose feed timepoint from day 4. WtXYR1 samples are represented with blue color and mutXYR1 samples with red color. Batch lactose samples are marked with squares and late glucose feed samples with circles. Arrows represent metabolite loadings, i.e., the direction and weight of how the metabolites affect the principal components