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. 2022 Feb 21;11(2):282. doi: 10.3390/antibiotics11020282

Figure 3.

Figure 3

(a) Absorption spectra of retinoic acid (RA)–β-lactoglobulin (βLG) mixtures at increasing RA concentrations (between 0 and 15 μM). βLG concentration was fixed at 15 μM. (b) The evolution of absorbance at 350 nm and 430 nm upon titration.