Skip to main content

Table 2 Results of ANOVA for the total phenolic compounds (TPC) and radical scavenging capacity (RSC) of the extract

From: Optimization of subcritical water extraction of phenolic compounds from Ziziphus jujuba using response surface methodology: evaluation of thermal stability and antioxidant activity

Parameter

TPC

RSC

Model*

1021.06778 + 10.73689T + 1.17133t + 15.96000R

178.27345–3.40272T − 0.26043t + 34.56571R + 5.65306E − 003Tt − 0.032561TR − 0.010628tR + 0.012534T2 − 3.32434E − 003t2 − 3.25752R2

R2

0.863

0.7819

CV%

4.68

18.96

Lack of fit

 P value

0.96

0.93

 F value

0.3

21.26

  1. *R: solvent-to-fruit ratio, T: extraction temperature, t: extraction time