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. 2023 Aug 21;11(11):7160–7171. doi: 10.1002/fsn3.3642

TABLE 6.

Estimated optimum conditions, predicted, and experimental values of responses under these conditions.

Response variables Optimum extraction conditions Maximum values
Sonication time (min) Sonication temperature (°C) Stirring speed (rpm) Predicted Actual
Yield of extract (%) 70 61.8 1000 38.30 38.14
DPPH scavenging activity (%) 70 56.2 515 90.63 90.35
TPC (mg GAE /100 g DW PPE) 70 62.2 1000 282.92 283.18

Abbreviations: DPPH, 2,2‐diphenyl‐1‐picrylhydrazyl; DW, dry weight; GAE, gallic acid equivalent; PPE, pomegranate peel extract; TPC, total phenolic content.