The lightness values of the groups C, G and GþOL were determined as 29.10, 38.91 and 45.46, respectively. At the end of the storage period, the a* values of the control samples (C) decreased (p < 0.05) to 0.71 while the coated samples (G and GþOL) increased (p > 0.05) to 5.27 and 10.53, respectively.