Abstract
The effect of various alkalis on the toxicity of salted puffer roe has been investigated. Firstly, the toxicity of puffer roe immersed in salt solutions containing various alkalis was examined, and sodium bicarbonate was found to be most effective alkali to reduce roe toxicity. Then, laboratory and manufacturing-scale salting processes were done to confirm the efficacy of sodium bicarbonate addition. In the laboratory, the toxicity of salted roe in the presence of sodium bicarbonate decreased remarkably during 9 months, but a less dramatic reduction of toxicity was obtained in the manufacturing-scale experiment.
