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ACETATE LACTATE NH3 Orn ALDEHYDES B.A. NH3 ACIDS ESTERS ALCHOOLS Figure 10.1. Meat starter culture bacteria: major metabolic pathways in meat fermentation. Main enzymatic activities of coagulase negative staphylococci and lactobacilli are indicated by light grey arrows and dark grey arrows, respectively. The metabolic activities ascribed to both bacterial groups are indicated by white arrows. Dotted-line arrows indicate action of endogenous meat enzymes. Abbrevations: a.a., amino acids; Arg, arginine; B.A., Biogenic Amines; Orn, ornithine