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Potential Effect of Solvent Fractions of Taraxacum mongolicum H. on Protection of Gastric Mucosa  

Han, So-Heui (Aloemaiim Co., Ltd, R&D Center)
Hwang, Jung-Keun (Aloemaiim Co., Ltd, R&D Center)
Park, Soo-Nam (Department of Fine Chemistry, Seoul National University of Technology)
Lee, Kil-Hong (Department of Fine Chemistry, Seoul National University of Technology)
Ko, Kang-Il (Bioland Ltd, R&D Center)
Kim, Ki-Su (Bioland Ltd, R&D Center)
Kim, Ki-Ho (Bioland Ltd, R&D Center)
Publication Information
Korean Journal of Food Science and Technology / v.37, no.1, 2005 , pp. 84-89 More about this Journal
Abstract
Mongolian dandelion (Taraxacum mongolicum H.) extracted with solvents having different polarities were prepared to investigate protection activity of gastric mucosa. Ethanol extracts were successively reextracted with methylene chloride, and n-butanol. Concentrations of total flavonoids and luteolin in n-butanol extracts were 27.75 and 1.14%, respectively, much higher than those of other solvent extracts. Results of anti-microbial acitivity test against Helicobacter pylori and urease inhibition test revealed n-butanol extract exerted higher inhibition (13.16%) than other solvent extracts. Based on 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay, n-butanol extract showed the highest efficiency of free radical-scavenger activity among the extracts ($SC_{50}\;47{\mu}g/mL$). Erythrocytic photohemolysis tests, for the protection of cell membrane showed that half-life of human erythrocytes was increased by the addition of n-butanol extract $({\tau}_{50}=172min;C=5.0{\mu}g/mL)$. These results indicate n-butanol extract of Mongolian dandelion may be useful as a adjuvant for gastric diseases.
Keywords
Taraxacum mongolicum H; gastric mucosa; Helicobacter pylori; urease inhibition; photohemolysis;
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