. It has been stated that the variation in the
brightness of dried samples can be taken as a measurement
of browning (Avila & Silva, 1999; Ibarz et al.,
1999). When combining the hot air with MW ®nish
drying, the decrease in L-value accelerated (Fig. 1(c)).
By this method, the time to reach an L-value of 40 was
138 min. A similar trend was observed in a-value (sharp
increase, Fig. 2(c)) and in b-value (sharp decrease,
Fig. 3(c)), probably, because of high temperatures generated
by MW in the samples. Initial samples showed a