Figure S1 - Polysaccharides Isolated from Açaí Fruit Induce Innate Immune Responses

1H NMR spectra of Acai-PS fractions. The fractions were dissolved in D2O, and spectra were recorded at 20°C, as described [41]. Using previously described methods, we predict the following peak associations which are marked on the Acai-3 graph: weak signals present at 3.37–3.45 ppm represent α-rhamnopyranose (α-Rha p), the strong signals at 3.54–3.96 ppm represent β-galactopyranose (β-Gal p) [84], and the signals at 4.04–5.07 ppm represent α-arabinofuranose (α-Ara f) as well as α-galacturonopyranose (α-GalA p) residues [56], [84]. N- and O-acetyl (1.9–2.0 ppm), methyl (0.75 and 1.1 ppm), and alkylamide (3.21 ppm) groups are also represented.
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