This study demonstrated that image analysis is suitable to analyse
the degree of browning of banana peels. We confirmed that the
browning of banana peels developed more quickly in the CO group
than the other groups based on sensory test and enzyme assay.
Colour values for the CO group increased or decreased sharply
for all analytical methods, and for the Cont group they changed
slowly. In the results of the image analysis, the G and CIE L⁄a⁄b⁄
values showed a high correlation coefficient with sensory test
results (over 0.9). CIE L⁄a⁄b⁄ values using a colorimeter also showed
high correlation coefficients but were comparatively lower than
those were of image analysis (except CIE a⁄ values). Image analysis
can be used to obtain the colour information of the entire surface
of samples. Furthermore, it is possible to express various colour
values and minimise errors by manual inspection. Further study
is needed to identify the changes in colour value in accordance
with the degree of brightness.