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. 2017 Jan 13;22(1):128. doi: 10.3390/molecules22010128

Figure 3.

Figure 3

EPR spectra of DPPH interacting with (a) propolis drops and (b) propolis spray heated at the temperature 50 °C for 5 min, 10 min, 20 min, 60 min. B—magnetic induction. Time of heating was 30 min.