3.4. Color of mantou
Color is an important quality indicator for food products.
Table 3 shows the effect of PCF on the color of mantou. The
White index and Hunter L value, which indicate the luminosity
of the sample, were significantly lower in the crust and
crumb of mantou with PCF than in the control. Both a
(redness) and b (yellowness) values of the crust and crumb of
mantou increased with the substitution by PCF. However, the
particle size of PCF tested did not significantly affect the L, a,
and b values of mantou crust and crumb (p > 0.05). Therefore,
the color of mantou was primarily affected by the amount of
PCF. Chien and Kang [16] found that bread crumb with pineapple
pomace had lower L and higher b values and that the
color of the crumb was not influenced by the particle size of
pineapple pomace. Borchani et al [25] reported that bread with
3% date flesh fiber concentrate was darker, redder, and less
yellow in comparison to the control bread.
3.4. Color of mantouColor is an important quality indicator for food products.Table 3 shows the effect of PCF on the color of mantou. TheWhite index and Hunter L value, which indicate the luminosityof the sample, were significantly lower in the crust andcrumb of mantou with PCF than in the control. Both a(redness) and b (yellowness) values of the crust and crumb ofmantou increased with the substitution by PCF. However, theparticle size of PCF tested did not significantly affect the L, a,and b values of mantou crust and crumb (p > 0.05). Therefore,the color of mantou was primarily affected by the amount ofPCF. Chien and Kang [16] found that bread crumb with pineapplepomace had lower L and higher b values and that thecolor of the crumb was not influenced by the particle size ofpineapple pomace. Borchani et al [25] reported that bread with3% date flesh fiber concentrate was darker, redder, and lessyellow in comparison to the control bread.
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