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. 2021 Jun 21;10(6):989. doi: 10.3390/antiox10060989

Figure 2.

Figure 2

Fluorescence quenching spectra of α-amylase (A) and α-glucosidase (B) at λex = 295 nm. PE concentration increased from 0 to 1.36 × 10−4 M. The Stern–Volmer plots for α-amylase (C) and α-glucosidase (D) fluorescence quenching by PE.s.