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. 2020 May 14;12(5):1414. doi: 10.3390/nu12051414

Figure 2.

Figure 2

Muscle histidine and histidine-related compounds buffering contribution (4) in comparison with proteins among species (contractile (1) and soluble (2)), inorganic orthophosphate (3), and unknown compounds (5)). Buffering capacity is expressed as µmol NaOH per pH unit per g muscle over pH 6.5–7.5. Values indicated on the bars represent the concentration of total histidine-related compounds (µmol/g muscle). WM, white muscle; RM, red muscle; SM, skeletal muscle; BF, biceps femoris; PSM, psoas muscle; PM, pectoralis minor [29].