Skip to main content
. 2022 Jan 12;83:105916. doi: 10.1016/j.ultsonch.2022.105916

Fig. 3.

Fig. 3

Response surface plots showing the effects of variables on antioxidant activity by DPPH assay (mM trolox/100 g dry wt.) (a) temperature was constant at 50 °C (b) amplitude was constant at 40% and (c) time was constant at 35 min.