1987/01/01 by O. O. FAPOJUWO, Omololu O. Fapojuwo, J. A. MAGA +3 · 4 citations
Nursing · Agricultural and Biological Sciences · Environmental Science · #Food composition and properties #Ruminant Nutrition and Digestive Physiology #Agriculture Sustainability and Environmental Impact
paper · doi:10.1111/j.1365-2621.1987.tb14010.x
ABSTRACT Extrusion variables including moisture (15 and 2.5%), temperature (50°, 125° and 200°C) and screw speed (50, 125 and 200 rpm) of two low tannin sorghum varieties extruded with 0, 2 and 4% calcium hydroxide were studied. Protein digestibility was determined by in vitro pepsin assay. Extrusion improved digestibility from 45.9 to 74.6% and 43.9 to 68.2% for the two varieties, respectively. Temperature was the key extrusion variable that influenced digestibility. Screw speed and moisture did not have significant effects. Alteration of pH before extrusion further improved digestibility.