Color of rice sample
was measured in terms of L* value (lightness), a* value (redness) and
b* (yellowness) using a C.I.E. LAB Color Meter (Color Guide Gloss,BYK Gardner GmbH, Germany). Total color difference (DE) was
calculated from DE ¼ ((DL2) þ (Da2) þ (Db2))0.5 by comparing color
values of rice sample and ordinary brown rice.