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IR Spectrum of EPS-RS from Bacillus Subtilis Subsp. Subtilis (KP733900): band at 3744.12 cm-1 referred to the stretching vibration of O-H, band at 1,677.77 cm-1 referred to the carboxyl group and C=O. CH2 and OH bonding were illustrated at 1435.74 cm-1. The bands at 868.7 cm-1 indicated the α-pyranose form of the glucosyl residue. The sulfate active group is represented at 1,111.76 cm-1
