Abstract
The objective of this research was to evaluate the inhibitory activities of phenolic compounds isolated from Cheomoknosang callus on Helicobacter pylori. Total phenolic compounds of 80% ethanol extracts from callus were 15.3 mg/g. The activity of H. pylori inhibition at 80% ethanol extracts from Cheongmoknosang callus was determined as 14 mm clear zone. Isolation of inhibitory compounds was carried out on Sephadex LH-20 and MCI-gel CHP-20 column chromatography using a gradient elution procedure of increasing MeOH in . The chemical structure of the inhibitory compound against Helicobacter pylori was confirmed as protocatechuic acid, chlorogenic acid, caffeic acid and rosemarinic acid by spectroscopic analysis of FAB-MS, NMR and IR spectrum.
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