Tea is a tropical and subtropical plants that is scientifically known as Camellia Sinensis. From approximately 3000 types of tea result of intermarriage, the results obtained three kinds of tea process, namely green tea, oolong tea and black tea. Method of processing tea with tea leaves chopped and dried in the sun so that chemical changes before being dried. The treatment will cause the leaves to brown and gives a taste of black tea are typical.
Green tea, teas oldest, most favored mainly by people of Japan and China. Here the tea leaves had a little processing, heating and drying so that only green leaf color can be maintained. While oolong tea is more of a type intermediate between black tea and green tea. The three types of tea each have health benefits because they contain so-called biochemical bond polyfenol, including flavonoids. Flavonoids are a group of antioxidants that are naturally present in vegetables, fruits, and beverages such as tea and wine.Subclass of polyphenols including flavonols, flavones, flavanon, anthocyanidins, catechins, and biflavan. Derivatives of catechins such as epi-cathecin (EC), Epigallo-cathecin (EGC), cathecin Epigallo-gallate (EGCG), and quercetin is commonly found in tea. EGCG and quercetin is a powerful anti-oxidant with a power of up to 4-5 times higher than vitamin E and C, which also are potent antioxidants. Antioxidants are known to prevent cells from damage since any damage to the cell will contribute more than 50 diseases.
Green tea contains EGCG, as well as black tea, so to say a biochemist. In a study by Dutch researchers say, consume 4-5 cups of black tea each day will reduce the risk of stroke by 70% compared with those who consumed two cups of tea a day or less. Other reports mention more of black tea consumption was associated with lower heart attack cases. John Folts, director of the Medical School, the Central Artery Thrombosis Research and Prevention, University of Wisconsin, USA to find the key properties of flavonoids in tea. Research results showed that flavonoids in black tea can inhibit the clotting of blood platelet cells, thus preventing blockage of blood vessels in hantung coronary disease and stroke. Another study states that fanatical tea drinkers had higher levels of cholesterol and low blood pressure, although it remains unclear whether they were directly caused by the tea.
Researchers at Case Western Reserve University, Cleveland, USA to find the effect of the use of green tea on the skin up to 90%. It turned out that tea is very effective in protecting the skin from the sun can cause skin cancer. Tea also contains fluoride which is known to strengthen tooth enamel and helps prevent tooth decay. In a laboratory study in Japan, researchers found that tea helps prevent the formation of dental plaque and kill bacteria cause inflammation of the gums.
Research in Japan showed that pendudukanya tea producing region known as fanatic tea drinker, very low mortality rate caused by cancer. Another study, carried out cooperation between the research team Oguni and cancer research center in Beijing to study the effects of green tea extract on mice that had been given food rations carcinogenic (cancer-triggering substances). Reportedly, the average rate of cancer in mice that received green tea extract half of the mice who did not receive green tea extract.
The researchers believe that polyphenols known as cathecin contained in green tea, help the body fight cancer cells. Another study conducted by Dr Oguni and. Masami Yamada of the Hamamatsu Medical Center found cathecin kill Helicobator pylori, the bacteria trigger gastric cancer.
{ 0 comments... Views All / Send Comment! }
Post a Comment