Toward Improving Medication Adherence: The Suppression of Bitter Taste in Edible Taste Films

Figure 2

FT-IR spectra of lipid microspheres. The y-axis represents % transmittance, and the x-axis represents wavenumber in cm⁻¹. The y-axis is scaled to the longest downward transmission peak in all four panels. (a) Stearic acid microspheres with no encapsulated compound. (b) Stearic acid microspheres that encapsulated quinine by the hot melt method. Black vertical arrow represents IR band at 3400 cm⁻¹, gray arrow represents IR band at 1600 cm⁻¹, and open arrow represents an IR band at 1050 cm⁻¹. (c) Stearic acid microspheres that encapsulated sucralose by the hot melt method. Black arrow represents band at 3500 cm⁻¹, and gray arrow represents band near 1100 cm⁻¹. See Results section for identification of IR bands.

(a)

(b)

(c)