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Figure 2

From: Physicochemical characterisation of kafirins extracted from sorghum grain and dried distillers grain with solubles related to their biomaterial functionality

Figure 2

Attenuated total reflection-Fourier transform infra-red (ATR-FTIR) spectroscopics characterisation of protein secondary structure. (A) A representative spectra of the kafirin with the amide I band shaded in pink; (B) second-derivative spectra; (C) the representative overlay of fits centred at 1620, 1634, and 1643 cm−1. DDGS kafirin is shown as solid red/pink/blue lines, grain kafirin shown as dashed red/pink/blue traces. (D) A representative complete fits for grain kafirin; (E) a representative complete fits for DDGS kafirin; (F) statistical analysis (n = 5 samples, students’ t test, 95% confidence interval) of examined peaks.

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