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. 2020 May 16;9(5):433. doi: 10.3390/antiox9050433

Figure 12.

Figure 12

Fluorescence spectrum of HSA (1.5 × 10−5 M, excitation at 295 nm) and its changes upon increasing concentrations of the PRF extract (A). Stern–Volmer plot for HSA quenching by PRF (concentration of PRF in mg/mL) (B). Stern-Volmer plot for HSA quenching by PRF (concentration of PRF in expressed as chlorogenic acid equivalent [M]) (C).