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Fig. 1 | BMC Complementary and Alternative Medicine

Fig. 1

From: Antioxidants and α-glucosidase inhibitors from Neptunia oleracea fractions using 1H NMR-based metabolomics approach and UHPLC-MS/MS analysis

Fig. 1

The representative 1H NMR spectra of HF (a), CF (b), EF (c) and MF (d) of N. oleracea. 1, fatty acids; 2, alanine; 3, leucine; 4, valine; 5, oleanolic acid; 6, phytosterol; 7, α-glucose; 8, β-glucose; 9, fructose; 10, quercetin derivatives; 11, kaempferol derivatives; 12, myricetin derivatives; 13, apigenin derivatives; 14, catechin; 15, gallic acid; 16, 3,4-O-dimethylgallic acid; 17, caffeic acid

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