Abstract
ABSTRACTWhole cowpeas were decorticated, adjusted to moisture contents of 20, 30 and 40%, chopped into coarse meals and extruded on a Wayne pilot‐scale extrudel (19 mm × 475 mm barrel, 5:1 compression screw, 4.76 mm i.d. die) at barrel temperatures of 150°, 175° and 200°C. Measured product temperatures ranged from 130‐164°C. Product moistures ranged from 10–34% and were affected mainly by initial moisture. Expansion at the die was highest for 20% moisture extrudates (1.7–1.9), and lowest for 40% samples (0.9‐ 1.3). The 20%‐150° extrudate was dense (0.45 g/cm3) and twisted. The 20%‐175° product was highly expanded (0.23 g/cm3). Other products were intermediate in density. Tristimulus color values were determined.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
