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

Table 7

Equation and regression coefficient of Peleg’s capacity 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 = −3E − 05x + 0.034	0.961
Hexanoic acid	y = −0.000x + 0.247	0.775
Rutin	y = −0.26 ln (x) + 1.526	0.716
Scopoletin	y = −0.18x + 1.364	0.527
Quercetin	y = −0.08 ln (x) + 0.825	0.408