Natural Film Based on Pectin and Allantoin for Wound Healing: Obtaining, Characterization, and Rat Model

Figure 1

(a) Pectin hydrogel enriched with allantoin without glycerol: red arrows indicate film fractures in both sides. (b) Pectin hydrogel enriched with allantoin plasticized with glycerol. Pectin hydrogel enriched with allantoin: (c) white side rich in allantoin and brown side rich in pectin and (d) more flexibility of the film due to glycerol.

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(b)

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