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(A) HPLC analysis of ginsenoside Rb1 conversation at optimum temperature and optimum pH for 14 d hydrolysis by using ACE-5-C18 column (4.6×250 mm) equilibrated with solvent A (H2O). A-0 d, B-3 d, C-7 d, D-14 d; (B) TLC analysis of ginsenoside Rb1 at optimum temperature and pH for 14 d hydrolysis.
