Principal Green Tea
Production Regions
Tea Harvest
Time Periods
Philological Benefits of Japanese Green Tea
In Japan, green tea is offered to guests and is used in the tea ceremony. At the same time, it’s a daily beverage in homes and offices enjoyed by many. Long ago, tea was used for medicinal purposes. Today, the constituents of tea are a focus of widespread scientific investigation, and the numerous functions of green tea have been publicised to great attention. Here are a few physical functions and components of Japanese tea:
Physical Functions
Green tea offers an array of unique taste sensations, including astringency, bitterness and full-bodied flavour. Green tea also comprises a large number of components that are said to be beneficial to human health. These components have a diverse range of effects.
Catechins →
Decreases blood cholesterol, body fat reduction, cancer prevention effect, antioxidant tooth decay prevention, antibacterial effect, anti-influenza effect Inhibits high blood pressure, anti-hyperglycemic effect, bad breath prevention (deodorizing effect)
Vitamin C →
Antioxidant, anti-mutagenic, cold prevention, improves complexion, anti-cataract agent
Vitamine B2 →
Antioxidant, maintenance of healthy skin and mucus membrane
Vitamin E →
Antioxidant, anti-mutagenic, anti-diabetic agent, anti-cataract agent, anti-aging
Folic acid →
Prevention of fetal neural tube defects (NTD), prevention of arterial sclerosis
β-carotene →
Maintenance of nighttime vision
γ-aminobutyric acid (GABA) →
Reduces blood pressure
Flavinoids →
Antioxidant, anti-mutagenic, strengthens blood vessel walls, halitosis prevention
Polysaxxharides →
Anti-hyperglycaemic agent
Fluoride →
Prevention of tooth decay
Theanine →
Reduces blood pressure, regulations of brain and nerve functions, neuronal cell protection, relaxation effect (promotes α wave production)
Caffeine →
Increases alertness (decreases tiredness and drowsiness) Increases stamina, hangover prevention, mild diuretic
Chlorophyll →
Deodorizing effect
Saponins →
Lowering of blood pressure Anti-influenza effect
Protects against metabolic syndromes
Obesity, high blood pressure, hyperglycaemia annd hyperlipidemia are risk factors for arteriosclerosos and heart attack. Occur together in metabolic syndromes. It’s now known that tea catechins reduce body fat and fat around the internal organs which may reduce metabolic syndromes.
Anticancer agent
Tea catechinns, particularly EGCG, have been found to be capable of surprising the division of cancer cells. One research study found that stomach cancer risk was reduced by approximately 30% in women drinking five or more cups of green tea each day, compared to women who drank one cup or less each day.
Annti aging agent
A presentation at a scientific conference showed that the catachins and vitamins found in green tea suppress free radicals and lipidperoxidation, which are considered factors in human aging. Therefore green tea possesses anti-aging properties.
Protects against dementia
Memory-related neurons display reduced activity in persons suffering from Alzheimer-type cognitive impairment. Theanine contained in green tea has been shown to promote secretion of nerve growth factor (NGF) and stimulate neuronal activity. In addition, research suggests that persons drinking two or more cups of green tea per day develop cognitive impairment at approximately half the rate of those who drink less.