Useful and therapeutic properties of tea
Medicinal properties of tea have long been known.Ancient healers knew about the properties of tea recuperate and promote longevity.
interesting legend about a Buddhist monk named Bodhidharma (Daruma), who fell asleep while praying.Waking up, he was very angry at his own weakness, and cut off his eyelids, his eyes were always open.From the age of tea bushes grew, a drink made from the leaves of which gave effect to the monks during services.
Tonic properties of tea have been studied and studied.As it is written in the books of the Teaching, the physiological value of tea is explained by the rich and harmonic content of a large number of a wide variety of chemical compounds.The composition of tea recently discovered about 300 bioactive substances that affect many biochemical and physiological functions.That is why tea is referred to as a miracle-drink, possess valuable nutritional and medicinal properties.Established that caloric tea, based on the calculation of its dry weight, is 25 times greater than t
Infusion of tea, because it contained caffeine alkaloid, has a tonic and stimulating effect on the central nervous system, increases the excitation processes in the cerebral cortex, increases the time of extinction of conditioned reflexes.It increases mental and physical performance, stimulates the activity of the heart, reduces the effect of hypnotics, expanding brain vessels.
When studying the chemical composition of the leaves of the tea bush found that the amount of water-soluble extractive substances of 30-50%, including 15-30% of tannins, which are composed of 75-78% of tannins.
The leaves of the tea plant contains alkaloids: caffeine (2-5%);easily soluble in hot water and chloroform theophylline;theobromine hardly soluble in water and alcohol;xanthine, adenine, hypoxanthine, methyl xanthine, paraxanthine, izotin;phosphorus-containing organic compounds: lecithin, adenine nucleotide, the NUS-leotid cytisine, iron and manganese-NUS leotidy;pigments (chlorophyll, xanthophyll, carotene, teorubiginy, teoflaviny, spinasterin alpha, beta-rin s);a minor amount of chlorogenic acid;essential oil (0.01%), which is composed of alpha and betageksenol, terpineol and limonene;flavonoids: kaempferol, kaempferol 3-ramnoglyukozid, astragalin (kaempferol 3-glucoside), 3-ramnodiglyukozid kaempferol, myricetin and its glucosides (miritsitrin 3-glucoside and myricetin al.);enzymes teoflaviny, teorubiginy and glycosides.
for tea is abundant in volatile production, which include more than 30 volatile aldehydes, and protein content and nutritional value of the tea leaves is not inferior bean crops.
of 17 amino acids found in tea, glutamine is the most valuable.As part of the plant found 7.4% of mineral and other inorganic substances and macroelements (iron, phosphorus, magnesium, potassium, calcium, manganese) and minerals (copper, iodine, fluorine, Gold et al.).Phosphorus is bound in the form of phytin geksozomonofosfata, geksozodi-phosphate and phosphoric acid.It is important that the majority of micro- and macroelements is composed of complex organic compounds, often in the colloidal state, so when brewed tea they quickly dissolve.
tea tannins are composed of more than 30 polyphenolic compounds comprising teotanin about 10 catechins, polyphenols, and a number of derivatives thereof.Tannin tea after treatment oxidizes and loses its characteristic bitter taste to it, so the tea gets a pleasant sharp tartness.The amount of tannin in green teas significantly exceeds the content of the latter in black.At the same time, the black teas 40-50% tannin is in an oxidized state, which explains its more rapid dissolution after brewing.Tannin and ka-Tehinnah tea have properties of vitamin R.
tea Caffeine (in contrast to coffee and cocoa) associated with tannin called tanatkofeinom.Tea contains caffeine and 4%, and when you consider the amount of tea that we use per day, then every second or third person, it seems, would have to be subjected to this alkaloid poisoning.At the same time, when we drink coffee, which includes less caffeine often feel heart palpitations, tinnitus and some other unpleasant vascular disorders.By drinking tea such phenomena were observed.This is because the caffeine in tea is always in the connected condition with tannin, and at the same time it enters into the body together with theobromine and theophylline-theory, caffeine tea so slowly absorbed and rapidly excreted.Such natural combination of caffeine in tea is less harmful than coffee.Tea contains
citric, oxalic, pyruvic, malic, fumaric acid and other positively affecting the motor function of the digestive organs, possessing bactericidal properties governing the activity of hormones, enzymes, and other biologically active substances.The tea was found more than 10 enzymes, from among which are considered major polyphenol oxidase, peroxidase, catalase, and in-vertaza.Many aspects
medicinal properties of tea catechins depend on the content of vitamin P and which possess high biological activity.Together with vitamin C they reduce increased capillary permeability.Kapillyaroukreplyayuschee property and anti-vitamin P tea catechins and is considered useful in the treatment of diseases such as chronic hepatitis, rheumatic endocarditis, nephritis, as well as some forms of skin diseases.Tea Catechins increase the respiratory capacity of the living body tissue, so they are also useful in those diseases, pathogenesis of which is associated with impaired cell respiration.Vitamins
P and C have hemostatic effect, so the tea infusion (1: 10) prepared by boiling to simmer (5-10 min), able to prevent or eliminate gingival mucosa petechiae shell, stomach and intestines.
tea Biologically active substances interfere with the metabolic processes of the body.Ascorbic acid, iron and trace minerals tea are stimulants hematopoiesis.Vitamin C increases the activity of leukocytes fitotsitarnuyu, t. E. Activates the body's defense mechanisms.Together with the routine increases the resistance of red blood cells and the resistance of capillaries.The infusion of green tea increases the secretion of 17-corticosteroids, indicating a positive effect of tea on the functional state of the adrenal cortex.Green tea has a positive effect on patients with chronic hepatitis.This is manifested in a decrease in the activity of aldolase, transaminase, C-reactive protein, indicating that the active anti-inflammatory effect of tea.
Perhaps tea is protected against certain cancers. Tea has always been popular everywhere.It is now more reason to "sip cup" as the tea has a positive effect on health and may in some cases, medication.Scientific advances
recently shown that many substances in the tea, maintaining health, including antioxidants that help prevent many diseases - from heart failure to heart attacks and cancer.
«The antioxidant properties of a single cup of tea more than the similar one glass of fruit juice or an equivalent portion of fruit and vegetables" - said Catherine Rice, Evan from Kings College, London.
There is evidence that tea can serve as a means of cancer prevention.
study conducted in China, patients with oral cancer showed that those who were given tea for six months, the disease developed more slowly than in those who did not drink.The results of Dr. Chen's research were presented at the Second International Scientific Symposium on Tea effects on human health.
In animal experiments it was found out that tea prevents the development of lung cancer, colon and digestive tract.
Scientists say that tea antioxidants neutralize free radicals, activate certain enzymes.
Contrary to popular opinion, all of the above applies not only to green tea.Recent studies have shown that black tea, which consumes most of the people are also very useful.
is not yet clear how much tea you need to drink in order to make a significant contribution to the recovery.But I think that a cup of tea - it is wonderful.
In recent years, a number of reports on the effectiveness of some flavonoids and catechins, including miritsitrina, quercetin and rutin in some forms of experimental tumors.Given the high content of rutin in the composition of tea, in connection with this message, you can assume that tea is also able to protect our body from some forms of cancer lesions.
addition to quench thirst, the effect of tea is an active diaphoretic action.Jam made of raspberry, strawberry, fruit, anise and sage leaf supplements, valerian bark, horsetail herb and other plants contribute to sweating.Leveraging the secretion of sweat glands, tea helps to eliminate toxins (salts, oxidized products, toxins) from the body, and this shows a certain anti-toxic, protivopodagricakih, antipyretic effect, prevents the formation of kidney stones.
Tea favorable effect on the function of the kidneys and urinary tract.Alkaloids of tea (theobromine, Theophilus-ling, caffeine), essential oils have an active diuretic action.Diuretic properties are well manifested in the higher grades of green tea, particularly 95-carat.
Traditional medicine is widely recommended a tea drink for many diseases.The tea is used as a general tonic, a tonic, when mental and physical fatigue, as antitoxic, diaphoretic, antipyretic and diuretic, in feverish conditions that arise on the basis of various infectious diseases (pneumonia, dysentery, typhoid, tuberculosis, sore throat, etc.). and poisoning (toxic dyspepsia in children).Tea is recommended for fainting, hypertension, hypotension, particularly in the presence of a headache for colds.The Russian people firmly preserved the tradition of treating all colds bath and hot tea (better with honey).