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. 2022 Sep 18;11(18):2895. doi: 10.3390/foods11182895

Figure 1.

Figure 1

Fluorescence emission spectra of PPI at excitation wavelengths of 280 nm (a) and 295 nm (b), and fluorescence quenching spectra plots of PPI at 298 K (c) with different EGCG concentrations.