(b) Measurement of shrinkage and dehydration Table 4 shows the percentage of shrinkage and rehydration of shrimp using the 2 drying methods. The drying temperatures had an insignificant effect to percentage of shrinkage value conversely to percentage of rehydration. The percentage of shrinkage of both sizes of shrimps was between 11.45 and 32.36 %. Percentage of rehydration of shrimps also was between 3.01 and 13.08 %. These results imply that the effect of drying using infrared radiation has no relation to these qualities.
(c) Measurement of texture property The last column of Table 4 shows the shear force of shrimps in various drying strategies. The results reveal that the drying temperature does not significantly affect the shear force on the texture of shrimp (p < 0.05). However, an increase in the size of the shrimp results in an increase in the shear force.