Means in the same column followed by the same letter are not significantly different (p < 0.05). 5.5, 6.5 m/s, cryogenic freezing at 35, 40, and 60 C, respectively. The cutting force of the thawed samples only from shrimps with sodium chloride at 3 g/100 ml and sodium bicarbonate containing traces of citric acid treatment at 4 g/100 ml frozen by air-blast with air-velocity at 5.5 m/s (12.18 N), 6.5 m/s (10.33 N) was similar to the precooked samples (10.11) before the freezing. All other freezing methods including cryogenic freezing at all temperatures lead to the thawed samples with higher cutting forces after a freeze–thaw cycle. The samples treated with sodium chloride and sodium bicar- bonate containing traces of citric acid caused a brighter and less reddish and yellowish color impression of the frozen–thawed samples compared to the precooked samples as shown in Fig. 2. Frozen storages resulted in color changes which are due to changes