Influence of Sodium Alginate Concentration on Microcapsules Properties Foreseeing the Protection and Controlled Release of Bioactive Substances

Figure 3

ATR-FTIR spectra of (a) gallic acid, (b) sodium alginate polymer, (c) blank calcium alginate microcapsules, (d) calcium alginate microcapsules loaded gallic (Alg-3%), (e) calcium alginate microcapsules loaded gallic (Alg-4%), (f) calcium alginate microcapsules loaded gallic (Alg-5%), and (g) calcium alginate microcapsules loaded gallic (Alg-6%).