Figure 5: Formation of dityrosine and kynurenine pathway (KP) metabolites in myoglobin digestion samples after colonic fermentation. | Scientific Reports

Figure 5: Formation of dityrosine and kynurenine pathway (KP) metabolites in myoglobin digestion samples after colonic fermentation.

From: Untargeted metabolomics of colonic digests reveals kynurenine pathway metabolites, dityrosine and 3-dehydroxycarnitine as red versus white meat discriminating metabolites

Figure 5

Abundance of (a) dityrosine; (b) kynurenic acid; (c) N′-formylkynurenine; (d) L-kynurenine in beef, beef +50 mg myoglobin and 50 mg myoglobin digestion samples. Conditions that differ significantly (P < 0.05) are annotated with a different letter and error bars represent the standard deviation (n = 3).

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