2.7. Electrical conductivity
For electrical conductivity, 5 g of strawberry was incubated in
50 mL deionized water.
Then electrical conductivity of this solution
was measured at 1 min (C1) and 60 min (C60) with a PP 50 Sartorius
(Sartorius PP-50, Goettingen, Germany).
After this solution incubated for 25 min at 121 C (C121),
total conductivity was measured (Fan & Sokorai, 2005).
Electrical leakage (E) was calculated from the following equation;