The b value measures the yellow-blue chromaticity of the sample
(–120 to 120). The statistical analysis showed significant differences
(P < 0.05) for b values as a function of varieties for both frying
conditions (Table 4). However, the potato chips processed under
vacuum frying were significantly lower in b values (P < 0.05) than
the chips fried under the traditional conditions.
Figure 4 shows the effect of time on the color (value b) of potato
chips (Atlantic variety) processed under atmospheric and vacuum
conditions. The potato chips fried under vacuum had lower b values
than the chips fried under the traditional method. There was a