Characterizing the Deacidification Adsorption Model of Organic Acids and Phenolic Compounds of Noni Extract Using Weak Base Ion Exchanger

Table 6

Equation and regression coefficient of Peleg’s rate constant for organic acids (octanoic acid and hexanoic acid) and phenolic compounds (scopoletin, quercetin, and rutin) at different initial concentrations.

Compound	Equation	Regression coefficient, R^2
Octanoic acid	y = −0.001x + 1.236	0.809
Hexanoic acid	y = −0.012x + 5.965	0.848
Rutin	y = −13.8 ln (x) + 76.44	0.616
Scopoletin	y = −0.555x + 71.75	0.953
Quercetin	y = −20.7 ln (x) + 105.8	0.692