* Values with different superscripts in the same line differ significantly (P < 0.05).
** Values with different superscripts in the same line differ significantly (P < 0.05).
a L*, measure of darkness to lightness (a greater value indicates a lighter color); a*, greater value indicates redder color; b*, greater value indicates more yellow color;
C*, chroma or saturation index is a measure of total color/vividness of color (greater value indicates greater total color/more vivid color), chroma = (a*2 + b*2)1/2; Hue angle,
trueness of red, Hue angle = tan−1 (b*/a*)
×
180/.