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Box plots showing example metabolite variation in the system. Data are presented as the mean metabolite abundance ± standard error of the mean (S.E.M.) for n = 3 extraction replicates per chocolate sample. ANOVA with a Tukey post-hoc (p ≤ 0.05) was performed on the data in the box plots, and differences are denoted with letters (e.g. A, B, C).
