Chrominance of steamed bread is listed in Table 3. Color for
steamed made from whole wheat flour were significantly higher
than that of wheat flour, probably due to higher bran contents resulting in greater amounts of pigment and thus increase in the
color grade value (CGV), a* and b* values, decrease in L* value.
Whole wheat flour made from bran recombining processes had
lower CGV, a*, b* and L* values of steamed bread than that from
entire grain grinding processes, except for L* values of steamed
bread made from UMBR process using white wheat (Yumai 57) and CWRS. The UMBR process had the lowest CGV value, highest
lightness and lowest redness and yellowness among all whole
wheat flour milling processes, which was acceptable for consumer.
Steamed bread made by UMBR process using white wheat (Yumai
57) had optimum color among all samples, while its volume and
total score were lower than those for steamed bread made by the
same process using other wheat.