Green tea – the benefits and harms
Green tea is an unfermented (non-oxidized) or slightly fermented tea. Harvested tea leaves are first steamed at temperature of 170-180 °C (optional procedure), then the fermentation is either not implemented or does not last more than two days and forcibly stops heating. The obtained tea, oxidized by 3-12 %. Dry green color (from light green to dark green, depending on the manufacturing technique). Tea extract is usually a pale yellow or greenish hue, the
aroma is clearly visible “herbal” notes (can be guessed the smell of dry hay), the taste is tart, sometimes slightly sweet, never bitter, bitterness teas have poor quality or improperly brewed, prestavtie).
The best way to drink green tea leaf the highest quality. Tea bags is a waste of tea production, tea dust, Packed in paper bags. This tea does not bring tangible benefits. In the Central and North-East Asia is very popular green brick tea (brick) that is made from old leaves, cutting material and even branches, by pressing. This brick should be lined with a relatively high quality tea material (25%). The total content of tea leaves is not less than 75 %. This tea has a distinctive tart taste, long shelf life. Great importance for the achievement of beneficial effects of green tea (or any other) on the body has its proper brewing. Wrong to assume that high-grade tea itself is the guarantor of the existence of all useful properties. Must be met all the rules in the manufacture of tea, storage and brewing.
The benefits of GREEN TEA:
For many centuries, tea drinking, long before it became known to its chemical composition, the people were convinced of the beneficial properties of the drink. Initially, tea was a cure. People have appreciated tea for its stimulating effect on the body. Knew that tea enhances the efficiency and eliminates fatigue. Could correct his brew.
Proteins (in combination with free amino acids) may be contained in green tea up to 25%. The most richest of all Japanese teas. The high content of proteins responsible for the high nutritional value of green tea. In this he is not inferior bean. Noted that green tea (and black) instead of replacing food for a long period of time helps a person to endure her fault. A slower weight loss, persists efficiency. Therefore, tea is the number one drink for travelers, sailors, geologists, hunters and people that are of a similar work environment professions. The caloric content of fresh tea leaves is more than 20 times higher calorie wheat bread. So in the countries of Indochina tea leaf is consumed entirely in fresh or pickled. The tea infusion proteins are transferred only partially (amino acids and a certain amount of pectins), which does not reduce the nutritional value of the tea infusions. Green tea is much richer in protein than black. One of the amino acids of green tea, glutamine, is very important and helps to restore a depleted nervous system.
It is known that tetany green tea active against putrefactive bacteria, dysentery Bacillus, Flexner, typhus-paratyphus sticks “A” hemolytic yellow and Golden staph Streptococcus. Moreover, the higher the grade of green tea, the more pronounced antimicrobial activity. In addition, infusion of green tea the second day (and third) after brewing has a stronger antibacterial properties than the freshly prepared, although inferior in taste. Often in acute gastro-intestinal diseases, do enemas with infusion of green tea. Beneficial effect on the gastrointestinal tract due to the ability to adsorb harmful substances. Overall tea promotes digestion, eases the process of digestion, is preventive against diseases of the digestive system . That’s why it’s useful a Cup of green tea after meals, especially full-fat, meat, and heavy meals.
Substances in green tea have more compared to black tea P-vitamin activity, namely act as a vitamin e – strengthens the walls of blood vessels. Teas, by themselves, are a rich source of vitamin R. Green tea has a calming effect on the cardiovascular system, prevents vascular spasms, expands them and this facilitates the process of circulation, supports normal blood pressure (bias hypertensive patients against tea completely unfounded).
Caffeine, or theine, are part of green tea in combination with other alkaloids, such as theobromine and theophylline, and overall calming effect on the nervous system, only slightly arousing her, without oppression, without causing drowsiness (unlike coffee and cocoa). Tea enhances the process of oxygen supply of brain vessels, dilates them, makes breathing easier, cleanses the body and especially the blood system from toxins.
There are several uses of green tea in practice . Strong chilled infusion of a mixture of green and black tea with the addition of a small amount of dry wine grape (1 teaspoon to 1 Cup) – a means of washing the eyes with inflammation of the eyelids, the clogging of the mucosa and conjunctivitis. Chewing dry green tea helps nausea and strong urge to vomit in pregnant women with motion sickness in the car and sea sickness. A strong infusion of green tea can be used in the treatment external ulcerative diseases, gastric ulcers and duodenal ulcers, provided systematic use
Damage GREEN TEA:
Using tea for medicinal purposes should be based on good knowledge of all kinds and types of tea and their actions. Tea should be brewed correctly, taken in the right quantities relative to the water. If this is not followed, it is possible that the effect of green tea on the body. So highly concentrated tea overly invigorating, causes insomnia or, conversely, at higher concentrations – quick and deep sleep. Therefore, in older editions can be read that the tea – hypnotic drink.
Harmful the introduction of a very weak infusion of green tea (and other teas). Large quantities often paricipating fluid negatively affect the body, and the role of tea is reduced to water staining. Bad effect on the body and poor quality tea that was stored improperly or manufactured in violation of the technology. After all, the tea leaves are capable of absorbing vapors of gasoline, mothballs, insecticides, pesticides, detergents and accumulate them in extremely high concentrations. This tea may be poisonous, such poisoning is difficult to detect and treat.