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Several nutraceutical preparations containing proteins, amino acids and other small molecules are nowadays present on the market. In this work we propose NMR spectroscopy such as 1H NMR, 1H–1H TOCSY and DOSY for their constituents characterization, identification and profiling, comparing these results with those obtained by electrophoretic technique such as SDS–PAGE. The 1H NMR spectroscopy was applied...
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