Table 2
Cold water solubility (%) and cold water absorption (g/g) measured at 25 C of pregelatinized wheat starch (PGWS) and pregelatinized corn starch (PGCS) in the presence of
different concentrations of acetic acid.
Starch type Exposure time
0.5 h 24 h
Acetic acid concentration (mg/kg)
0 500 1000 10,000 0 500 1000 10,000
Cold water solubility (%)
PGWS 6.21 ± 0.18m 6.92 ± 0.10l 7.49 ± 0.04k 8.60 ± 0.14j 9.01 ± 0.35i 15.04 ± 0.27f 18.40 ± 0.44d 20.57 ± 0.25b
PGCS 8.45 ± 0.16j 9.05 ± 0.10i 9.15 ± 0.22i 10.62 ± 0.05h 12.70 ± 0.10g 16.62 ± 0.22e 19.26 ± 0.16c 22.01 ± 0.30a
Cold water absorption (g/g)
PGWS 10.08 ± 0.78b 9.23 ± 0.19c 8.26 ± 0.14d 7.33 ± 0.09e 11.89 ± 0.45a 10.08 ± 0.28b 9.42 ± 0.13c 8.31 ± 0.13d
PGCS 9.85 ± 0.12b 8.37 ± 0.19d 8.08 ± 0.52d 7.19 ± 0.18e 11.22 ± 0.42a 9.91 ± 0.45b 8.47 ± 0.09d 7.73 ± 0.14e
Values are the average of triplicates ± standard deviation. For each characteristic, means followed by the different letters are statistically different (P < 0.05).