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. 2019 Jul 1;7(3):70. doi: 10.3390/dj7030070

Figure 1.

Figure 1

Attenuated Total Reflection Fourier Transform Infrared (ATR-FTIR) spectra of EDEB (top) and anorganic bovine bone (ABB) (bottom). Both plots show peaks corresponding to carbonates and phosphates (871.5 and 1016.7 cm−1 for EDEB; 875.9, 1418.7, 962.2 and 1019.5 cm−1 for ABB). Yet, peaks corresponding to amidic bonds of proteins (Amide III, 1241.7 cm−1 and Amide I, 1653.8 cm−1) can be observed only in the EDEB plot.