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TLC profiles of the hydrophobic precipitates obtained by weak acid hydrolysis. A, untreated LPS; B, HF-treated LPS; C, HZ-treated LPS. TLC was performed using a solvent system consisting of CH3Cl-CH3OH-H2O (65:25:4 [v/v/v]) and visualized using anisaldehyde-sulfuric acid reagent.
