It was,observed that within the impregnation step, the a* values for nativemBraeburn apple slices turned from greenness (negative a* values) to redness (positive a* values). The impregnation step decreased the
lightness and hue of the apple parenchyma and chroma rose,compared to the native tissue. FD resulted in a decrease of redness whereas the lightness, the yellowness, the chroma and hue values of the enriched apple parenchyma elevated