The sample soaked in the water without any salt or amino acid was set as a control. After soaking, the shrimps were drained for 5 min, packed in polyethylene bags and then frozen in an air-blast freezer (Thermoscience®) at 30 C with air-velocity of 5 m/s until the core temperature reached 18 C. The core temperatures were recorded by using thermocouples with a data logger. The frozen samples were stored in a freezer (18 C) for a week before the analysis. Soaking and thawing yield were determined after a freeze-thaw cycle before the shrimps were cooked and sensory tested. All experiments were carried out in three replications and the results
were averaged.