Figure 1.
The quality control of DOE by HPLC at 280 μm and 335 μm ((1) vicenin 3, (2) isoschaftoside, (3) schaftoside, and (4) naringenin. (a) standard at 335 μm, (b) standard at 280 μm, (c) sample at 335 μm, and (d) sample at 280 μm.).
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