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KMID : 0665220130260010035
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Korean Journal of Food and Nutrition
2013 Volume.26 No. 1 p.35 ~ p.43
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Synergistic Inhibition of IgY, Auricularia auricula, and Lactic Acid Bacteria from Kimchi and Tarak on Helicobacter pylori
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Yoo Hye-Lim
Lee Young-Duck
Han Bok-Kyung
Choi Hyuk-Joon
Park Jong-Hyun
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Abstract
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The substances of lactic acid bacteria (LAB) isolated feom Kimchi and Tarak, L. mesenteriodes LAB kw5, and S. thermophilus LAB KW15 were investigated for growth effect of Helicobacter pylori with IgY and Auricularia auricula. Inhibition of H. pylori was confirmed at LAB KW5 and KW15 supernatants. Interestingly, anti-H. pylori substance in LAB KW5 and KW15 supernatants were sensitive to lipase, but insensitive to protein hydrolase and carbohydrate hydrolase. The inhibition zone toward H. pylori was not shown with the lipase-treated supernatants. Therefore, there seemed to be lipid-like substances in the cultures. By the analyses with gas chromatography, undecanoic acid (C11:0), palmitic acid (C16:0), stearic acid (C18:0), and oleic acid (C18:1) were detected at the culture substances from L. mesenteroides LAB KW5 and S. thermophilus LAB KW15, and more eicosadienoic acid (C20:2) from L. mesenteroides LAB KW5. Anti-H. pylori substances of LAB with IgY and A. auricula extract were analyzed for inhibition effect of H. pylori. The inhibition increased more by the range from 57% to 86% by the mixture. The substances with IgY and A. auricula extract showed more effective inhibition of H. pylori than single or double trials.
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KEYWORD
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Helicobacter pylori, lactic acid bacteria, IgY, Auricularia auricula
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