Journal of Microbiology and Biotechnology

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Inhibitory Effect of Ginseng Saponins and Polysaccharides on Infection and Vacuolation of Helicobacter pylori

  • Published : 2003.10.01
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Abstract

Ginsenosides and polysaccharides were isolated from Panax ginseng C.A. Meyer (Family Araliaceae) by treating at low ($60^{\circ}C$, LT), mild ($100^{\circ}C$, MT), and high ($120^{\circ}C$, HT) temperatures, and their inhibitory effects on growth, infection, and VacA vacuolation of Helicobacter pylori (HP) were investigated. The molecular weights of polysaccharides decreased as the processing temperature increased. Ginseng polysaccharides inhibited the HP infection into KATO III cells, but did not inhibit growth of HP and VacA vacuolation of HeLa cells. HT polysaccharides showed the most potent inhibition with $IC_50$ value of 6.8 mg/ml. Ginseng saponins did not inhibit the infection of HP into KATO cells. However, 20(s)-protopanaxadiol showed the most potent inhibition of HP growth and vacuolation of HeLa by VacA toxin with $IC_50$ values of 0.05 and 0.067 mg/ml, respectively.

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