オキアミの脱内臓へのウォータージェット法の適用

概要

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A new method to remove the viscera part from Antarctic krill is proposed here. A high pressure water jet was applied to the suspension of krill-water, and the kinetic energy of the jet washed the viscera part out of the Antarctic krill. Using a water pump which was designed to keep a flow rate of 13l/min and an outlet pressure of 3 kg/cm2, the best result was obtained with a vessel volume of 500ml and a nozzle diameter of 4.8mm. Sample amounts up to 50g in the 500ml vessel had the same de-viscera rate. It took 30 sec to remove almost all the viscera in the 500ml vessel with the 4.8mm diameter nozzle. The recovery yield was 53.4% under these conditions. Two other modified methods were the so called shower type and shaking type. Both resulted in successful treatments.
公益社団法人日本水産学会の論文