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Coffee has antibacterial activity.

Published: 2026-04-04 Author: World Gafei

Last Updated: 2026/04/04, Helicobacter pylori (helicobacter pylori,HP) is a gram-negative anaerobes that grows between the mucous layer of the stomach and duodenum and mucosal cells. It can produce a variety of enzymes and cytotoxins, resulting in mucosal damage.

Helicobacter pylori (helicobacter pylori,HP) is a gram-negative anaerobes that grows between the mucous layer of the stomach and duodenum and mucosal cells. It can produce a variety of enzymes and cytotoxins, resulting in mucosal damage. It is an important pathogenic factor in the occurrence and development of gastric diseases such as chronic gastritis, peptic ulcer and gastric adenocarcinoma. The pathogen of food poisoning, such as Omuri 157 and so on. Coffee can prevent the reproduction of these various germs.

The research team of Assistant Professor Ishii from the Department of Medicine of Tokai University in Japan has published a research report on the antibacterial effect of coffee. The team used coffee diluted with salt water to make Agar as a culture base for Helicobacter pylori. Then, sprinkle Helicobacter pylori on the Agar to observe the reproduction rate of Helicobacter pylori. If the reproduction rate of Helicobacter pylori is low, it shows that coffee has antibacterial effect. As a result, the survival rate of bacteria in coffee with a concentration of 1% was 20%, and that in coffee with a concentration of 2% was 1%. In other words, the stronger the concentration of coffee, the stronger the antibacterial effect.

In the future, consideration will be given to further deepening the study on the antibacterial effect of various bacteria and coffee.

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