| abstract |
(57) [Summary] [Object] The present invention aims to reduce gastritis by suppressing the growth of Helicobacter pylori, which is a causative bacterium of gastritis, gastric and duodenal ulcer, and suppressing the adhesion of the bacterium to gastric mucosa and duodenal mucosa. , Providing a composition for preventing gastric ulcer and duodenal ulcer. [Structure] (+)-catechin, (+)-gallocatechin, (−)-Gallocatechin gallate, (−)-Epicatechin, (−)-Epicatechin gallate, (−)-Epigallocatechin, (−)-Epigallocatechin gallate, free theaflavin, theaflavin monogallate A, theaflavin It is characterized by containing one or more compounds selected from the polyphenol compound group consisting of monogallate B and theaflavin digallate. |