The flesh of ripe fruit of Granny Smiths apple cultivars, under selected ultraviolet illumination bands, emits in characteristic peaks: at 312 nm, 363 nm, 375 nm, 390 nm, and also in the blue-green, red and far-red bands. In the blue-green region, spectra of fluorescence of phenols excited by UV were compared with excitation spectra of chlorophyll and it was affirmed that fluorescence is strongly reabsorbed by the photosynthetic pigments ­- by chlorophyll and carotenoids. Moreover, strong shielded absorption was observed in the green region, in excitation spectra of chlorophyll, derived from anthocyanins which probably occur in the apple flesh.