Beauty of Tatami - bactericidal effect

The facing side of tatami, tatami facing, is made of rush grass.
Rush grass has bactericidal effect towards disease-causing bacterium of O157 strain of the E.coli bacteria.
This is why rush grass green juice is good for health.

Other than Escherichia coli O157, it is effective for the salmonella which is a ringleader of food poisoning, and Staphylococcus aureus appearing in milk.
O157 epidemic is not multiplied in a tatami is reported by an experiment.

Bactericidal effect of a rush grass seems not to be lost in the acidity either and will arrive at the bowels without the antibacterial nature declining in the stomach which is the acidity.
In addition, rush grass has no effect on good bacterium in stomach that it is expected it will only kill the food poisoning bacteria.

The tatami which has the roots in Japan for more than 1000 years, it is not surprising even if there is the effect that is not yet known.