Abstract:The study seeks to evaluate the effect of hydrothermal treatment on sprouting of sorghum. The sorghum grains were soaked in water at 40 and 50 ºC for 15 minutes. Sorghum treated at 40 ºC reached maximum sprouting rate of 96.5% within 12 hours while the untreated control sample reached 90% in 20hrs. Germination being an important process for developing nutritionally beneficial food products is influenced by the hydration. Sufficient hydration due to increased temperature might have paved way for improved sprouting rate.
The pasting properties like peak viscosity, final viscosity and breakdown viscosity increased as the temperature of treatment increased. There was significant decrease in protein, and fat content. The water absorption capacity and oil absorption capacity ranged from 0.78 to 0.79 g/g and 0.64 to 0.65 g/g respectively which showed a decreasing trend from control. Sprouting is a time-consuming process thus, physical pre-treatment like soaking in warm water could accelerate the process. Also, the process doesn’t require high investments making it suitable for cottage industrial applications.