Figures & data
Table 1. The samples of Solanum nigrum: geographical origins, harvesting time, and similarity.
Table 2. The tried mobile phases in optimization of HPLC conditions.
Figure 2. The representative fingerprint of Solanum nigrum [column: Phenomenex C18 column (5 µm, 250 × 4.6 mm); detector: ELSD].
![Figure 2. The representative fingerprint of Solanum nigrum [column: Phenomenex C18 column (5 µm, 250 × 4.6 mm); detector: ELSD].](/cms/asset/27bf72bc-d912-498f-9788-abd25d1123aa/iphb_a_535171_f0002_b.gif)
Figure 3. Comparison between representative fingerprints (A) and mixture of standards (B) [column: Phenomenex C18 column (5 µm, 250 × 4.6 mm); detector: ELSD]. a: Uttroside B, b: solanigroside J, c: 5α-pregn-16-en-3β-ol-20-one lycotetraoside, d: linolic acid, e: palmitic acid, f: oleic acid, g: solasonine, h: solamargine, i: β2-solamargine, j: nigrumnin I, k: degalactotigonin; l: igogenin 3-O-β-[d-glucopyranosyl-(1→2)-O-[β-d-glucopyranosyl-(1→3)]-O-β-d-glucopyranosyl-(1→4)-O-β-d-galactopyranoside.
![Figure 3. Comparison between representative fingerprints (A) and mixture of standards (B) [column: Phenomenex C18 column (5 µm, 250 × 4.6 mm); detector: ELSD]. a: Uttroside B, b: solanigroside J, c: 5α-pregn-16-en-3β-ol-20-one lycotetraoside, d: linolic acid, e: palmitic acid, f: oleic acid, g: solasonine, h: solamargine, i: β2-solamargine, j: nigrumnin I, k: degalactotigonin; l: igogenin 3-O-β-[d-glucopyranosyl-(1→2)-O-[β-d-glucopyranosyl-(1→3)]-O-β-d-glucopyranosyl-(1→4)-O-β-d-galactopyranoside.](/cms/asset/f6b3908a-005f-4257-a960-81022bddf274/iphb_a_535171_f0003_b.gif)