Kinetics of tannin deactivation during anaerobic storage and boiling treatments of high tannin sorghums
Mitaru, Barnabas N
Reichert, Robert D
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Grain from three high tannin sorghums had their moisture contents raised by adding distilled water at 15, 20 and 25% W/W, respectively, and were stored under CO2 atmosphere at 25, 35 and 45°C respectively, for 1–20 days. In another trial, grain from the same high tannin sorghum sources was boiled in water at a ratio of 1g to 3 mL for periods of 10–60 min. Both anaerobic storage and boiling treatments deactivated the tannins with time. Moisture content and temperature levels influenced the rate of tannin deactivation during anaerobic storage. The process of tannin deactivation for both anaerobic storage and boiling treatments followed first order kinetics.