Preparation of sweet potato strips
The sweet potato tubers were washed, peeled and
cut manually into 8 x 8 x 80 mm strips. The strips
were blanched in 0.5% aqueous solution of CaCl2 at
80+3°C for 5 min, drained and dried in a convection
oven at 150+3°C for 12 min to reduce the surface
moisture (Initial moisture=67±2%wb) for frying