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. 2018 Mar 6;6(4):736–746. doi: 10.1002/fsn3.611

Table 4.

Effect estimates of process variables on the change in total phenolic and ascorbic acid contents of fruit juices observed

Factor Effect on total phenolic content Effect on ascorbic acid content
Pineapple juice Orange juice Watermelon juice Orange Juice
(1) Temperature (L) −3.16a 2.76a −6.44a −7.71a
Temperature (Q) 0.18 −0.21 0.4 −1.54a
(2) Carvacrol (L) 2.96a 2.38a 9.25a −0.61
Carvacrol (Q) −0.81 0.04 −0.9 0.21
(3) Time (L) −0.33 −0.93 2.25 −2.86a
Time (Q) −0.47 0.29 −2.62a −0.2
1L by 2L −0.24 0.62a −1.93a −0.24
1L by 3L −0.28 0.39 0.96 −0.9
2L by 3L 0.35 0.14 1 0.48
R 2 Model .48 .61 .64 .95

L, linear effect; Q, quadratic effect; XL by YL, interaction between factor X and factor Y.

a

Factor with a significant effect on the response (p ≤ .05).