A fluorescent substance was found in imported fruit candy. In the elution test of the fluorescent substance, it reacted in the same manner as fluorescent dyes. Further pursuit revealed that the fluorescence was derived from the grape flavor preparation added during manufacture and the fluorescence spectra of the candy and the grape flavor were quite coincident with that of methyl anthranilate. Methyl anthranilate contents in the candy and grape flavor were determined gas chromatographically to be 40.0 and 33,000 ppm, respectively, and it was calculated that the addition level of grape flavor to the candy was about 0.12%.

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