Radiation Effects on Food Dyes:Part 1. Radiation effects on coal-tar food dyes

概要

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Decoloration by gamma rays of aqueous solutions of fourteen coal-tar food dyes permitted in Japan was observed.Light green SF yellowish and new coccin were decolorized sensitively by gamma rays, but acid violet 6B and rose bengal were comparatively resistant. This tendency is different from the results obtained by exposure to daylight. Acute toxicity of the irradiated dye solutions to Japanese goldfishes was observed. The irradiated solutions of amaranth, erythrosine, new coccin, eosine, rose bengal, acid red, sunset yellow FCF, brilliant blue FCF were found to be more toxic than the unirradiated ones. For one example among them, irradiated erythrosine solution was administered to mice intraperitoneally, which resulted in an increase in toxicity as .compared with' the unirradiated solution. Hydrogen iodide was found to yield in the irradiated solution but it was not enough to interpret the toxic action of the irradiated solution.
日本食品照射研究協議会の論文