Tea in a Bottle Fewer Antioxidant Compounds

Wednesday, August 25, 2010 0 comments

Tea has antioxidant polyphenol compounds are well-
for health. But the researchers found in bottled tea contains polyphenols, which is less than a homemade tea.
The report outlined the scientists in the 240th National Meeting of the American Chemical Society (ACS) revealed that the tea in a bottle has a low polyphenol content.
Exemplified a person should consume 20 tea in a bottle to get the same amount of polyphenols with a cup of tea.

"The consumer understands well about the concept of the health benefits of consuming tea or other tea products. But there was a large gap on the perception of the actual amount of the polyphenol content in healthy," said Li Shiming, PhD, who conducted research with Professor Chi-Tang Ho and colleagues, as quoted from Health24, Tuesday (08/24/2010).

Li added that in addition to low polifenolnya content, tea in bottles is usually added to other substances including large amounts of sugar and calories. Though many people are actually avoiding excessive sugar intake.

In his research, Li measures the amount of some types of tea polyphenols in a bottle sold in the community, and obtained a small amount of polyphenol content. This polyphenol measurement using high performance liquid chromatography (HPLC).

Polyphenols are a group of compounds that enter the natural antioxidants and are known to be as anti-cancer, anti-inflammatory and protects the body from free radicals.
"Polyphenol compounds have a bitter taste, hence to reduce the bitter taste usually reduces the number of producers polifenolnya and add sugar," said Li.

Also the way of tea brewing, storage and tea-making process itself also affects polyphenol content contained therein. If the tea bag in too long in hot water can also reduce or eliminate the content of polyphenols.

Black tea should be brewed with hot water with temperatures of 90-95 degrees Celsius for 3-5 minutes to achieve good taste and high antioxidant levels.

Oolong tea brewed with water with temperatures of 90-100 degrees Celsius for 1-3 minutes. While green tea at a temperature of 60-80 degrees Celsius for 1-2 minutes.