based on the graph, the value of absorbance contained in RBB can be determined by the following equation:

y = 7.7714x + 0.0143

where y - absorbance reading at 600 nm and

x - concentration of dragon fruit (g/L)

therefore, when y = 1.960; x = 0.2503 g/L

The graph spikes around ~550 nm to ~650 nm, a "fingerprint" of the Remazol Brilliant Blue (RBB) that is being absorbed. 

The higher the peak, the more molecules are being absorbed.

The higher the absorbance, the higher the concentration

This chart illustrates the degradation rate according to its each mass of absorbance. 

% Degradation = (Co - Cx/Co) x 100

Co - Initial concentration;

Cx - Final concentration