Table 4.

Differentially abundant metabolites in normal-pH and dark-colored beef at slightly elevated pH (fold-changes: dark color/normal-pH > 2 or < 0.5, P < 0.05).

Metabolite	Fold change (dark color/normal-pH)	Abundance (dark color/normal-pH)	P-value	FDR	Role
1-Monopalmitin	2.31	over	0.0001	0.02	Fatty acid
1-Monostearin	2.27	over	0.002	0.14	Fatty acid
Aconitic acid	2.01	over	0.02	0.35	TCA metabolite
Cellobiose	0.36	less	0.02	0.35	carbohydrate metabolism
Lactose	0.30	less	0.05	0.35	carbohydrate metabolism
Maltose	0.35	less	0.02	0.35	carbohydrate metabolism
Raffinose	0.34	less	0.04	0.35	galactose metabolism
Sophorose	0.35	less	0.04	0.35	galactose metabolism

Abbreviation: FDR—false discovery rate P-value.