The
control film showed a yellowish shade (h ¼ 87.1) of very low
chromaticity (colorless to the naked eye), the S_E filmwas the most
reddish (h ¼ 56.8), whereas BeC was the most yellowish
(h ¼ 83.1) among the films incorporating carotenoid extract; the
hue angle of the T_E film was between those of BeC and S_E
(h ¼ 68.6). From these results it is deduced that b-carotene
contributed to the yellow color, whereas lycopene and astaxanthin
contributed to the orange-red one. The film with the most intense
color (highest chromaticity) was the one to which tomato extract
was added (T_E film), followed by