White Tea Beats Green Tea at Killing Germs
White Tea Extract May Help Prevent Disease and Even Cavities
May 25, 2004 -- When it comes to tea, white may be the new
"in" color. A new study shows white tea beats green at fighting germs
and may help prevent common infections.
Researchers found an extract derived from white tea inactivated
and slowed the growth of bacteria that cause streptococcous (strep) infections,
pneumonia, and cavities in teeth.
"Past studies have shown that green tea stimulates the
immune system to fight disease," says researcher Milton Schiffenbauer, PhD,
a microbiologist and professor Pace University, in a news release. "Our
research shows white tea extract can actually destroy in vitro the organisms
that cause disease."
Schiffenbauer presented the study this week at the
104th General Meeting of the American Society for Microbiology in
White Tea Kills Germs
In laboratory tests, researchers compared the effects of white
and green tea extracts at inactivating viruses and preventing the growth of
The study showed that the white tea extract was significantly
more effective than the green at fighting germs.
In addition, the study showed adding white tea extract to
conventional toothpastes enhanced their ability to kill germs and may help
Researchers say the findings show that white tea extract may
have antiviral and antifungal effects and may be used in the future to develop
treatments to help prevent disease.