The tea plant is a tropical and subtropical regions, which is scientifically known as Camellia Sinensis. From about 3000 types of tea result of crossing, we have three types of tea result of the process, namely, green tea, oolong and black tea. Tea processing is to chop the tea leaves and dried in the sun to chemical changes and dried. The treatment leaves brown and gives a taste of black tea which is typical.
Green tea is the oldest type of tea, much appreciated by the community, especially Japan and China. Here are the tea leaves have a bit of cooking, heating and drying so that only the green leaves can be maintained. While oolong tea is more than one type of transition between black tea and green tea. The three kinds of tea each with their own health because they contain polyphenols binding properties of biochemicals known as flavonoids. Flavonoids are a group of antioxidants found naturally in vegetables, fruits and beverages such as tea and wine.
flavonols Subklas polyphenols, including flavonoids, flavanones, anthocyanidins, it seems, catechin and biflavan. Catechin derivatives as epi-cathecin (EC), epigallocatechin-cathecin (EGC), epigallocatechin gallate cathecin (EGCG) and quercetin is mainly found in tea. EGCG and quercetin is a potent antioxidant power of up to 4-5 times greater than vitamin E and C, which is also an antioxidant potential. Antioxidants are known to be able to prevent cells from damage considering each cell damage contribute more than 50 diseases.
Green tea contains EGCG and black tea, “said a biochemist. In a Dutch study conducted by researchers say, drinking 4-5 cups of black tea daily reduces the risk of stroke by 70% compared with those who drank two cups of tea per day or less. Other reports mention the most black tea consumption is associated with an attack of the heart’s lower case. John Folts, director of the School of Medicine of the Central Artery Thrombosis Research and Prevention University of Wisconsin, United States the main properties of the flavonoids in tea. Research suggests that flavonoids in black tea could inhibit the clotting of platelets in the blood cells, preventing the obstruction of blood vessels in coronary heart disease and stroke hantung. Another study showed that tea drinkers had higher levels fanatics cholesterol and low blood pressure, although we do not know if it was caused directly by the tea.
Researchers from Case Western Reserve University, Cleveland, USA for the effect of the use of green tea on the skin up to 90%. It was found 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 plaque formation and kills the bacteria cause inflammation of the gums of the mouth.
Study shows Japanese tea production region known as fanatic tea drinker pendudukanya, the very low mortality rate caused by cancer. The results of another study, cooperation between the research team and a center of Cancer Research Oguni to Beijing to study the effects of green tea extract on mice that had received food rations carcinogenic (cancer starting substances). Reportedly, the average rate of cancer in rats treated with green tea extract half of the mice that received green tea extract.
The researchers believe that polyphenols known cathecin contained in green tea helps the body cells to fight cancer in humans. Another study by Oguni and Dr. Masami Yamada cathecin Hamamatsu Medical Center is killed Helicobator pylori, the bacteria trigger gastric cancer.
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