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NADH persistence in buffered-water (dotted lines with open symbols) and ethylene glycol (A) or ectoine (B) containing solutions with high viscosities (filled symbols) at different temperatures: 20°C (solid circles), 40°C (shaded squares), 50°C (solid squares), 60°C (shaded triangles), 70°C (solid triangles), 80°C (shaded diamonds), and 90°C (solid diamonds). Error bars are shown except when covered by solid symbols.
