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Ultraviolet (UV)-visible absorbance spectra (A) and transparency at 310 nm (B) of soft capsule-forming solutions as a function of concentration of Gelatin (G) and of the gelatin/cactus mucilage (G/CM) ratios (3:1, 1:1 and 1:3). All data are the mean of measurements (n = 3) ± standard deviation. Different asterisks in the same column for each solution indicate a statistical difference (p < 0.05) between samples.
