Fig. 6 KEGG enrichment pathway diagram. Figures a, b and c show the KEGG enrichment pathway of A&B, A&C and B&C respectively. Each bubble represents a pathway; Abscissa represents the impact value in the pathway; Ordinate represents the enrichment significance of metabolites in the pathway -log10 (P-value); Bubble size represents the impact value; The larger the bubble, the greater the importance of the pathway. Bubble color from light to deep indicates that P-value decreases in turn.