Tips of Teas and Drinks:The health benefits and functions of black tea.
Introduction of black tea.
This article introduces the functions of black tea, the drinking and brewing methods of black tea, the identification methods of black tea, the varieties of black tea and other knowledge.
The health benefits and functions of black tea.
✵Dietary nutrition: Black tea contains rich nutritional ingredients, and the most important are vitamins and minerals, protein, amino acids, sugars, and other substances. For the staple food of beef, mutton and cheese, and the lack of vegetables and fruits in the diet of the residents of the northwest region and mountain area, drinking black tea for a long time, is an important source of their essential minerals and various vitamins.
✵Aid digestion and decompose oil: Theine, vitamin, amino acid, phospholipid in black tea is helpful to human body digestion, adjust adipose metabolism, theine stimulates action to be able to increase the secretion of gastric juice, increase appetite thereby, help digestion. Scholars have proved through scientific examination that black tea has strong functions of resolving greasy and digesting food, which is also the reason why carnivorous people especially like this kind of tea.
The food structure of ethnic minorities in northwest China is beef, mutton, and cheese. Therefore, it is said that "it is better to go without food for three days than without tea for one day", which has a lot to do with the effect that tea can "get rid of fat."
In addition, black tea can improve the intestinal microbial environment, with gastrointestinal functions. Chinese folk has the tradition of using old black tea to cure bloating, dysentery and indigestion.
✵Lose fat and weight: High lipid content, will make lipid deposition in the blood vessel wall, thus causing atherosclerosis and thrombosis.
Black tea has a good effect on degradation of fat, anti-coagulation, promoting fibrinogen dissolution and significant inhibition of platelet aggregation, but also can make vascular wall relaxation, increase the effective diameter of blood vessels, thereby inhibiting the formation of atherosclerosis plaque aorta and coronary artery wall. To achieve the purpose of lowering blood pressure, softening blood vessels, prevention and treatment of cardiovascular diseases.
The tea polysaccharide rich in black tea has the effect of reducing blood lipid and blood peroxide activity.
✵Antioxidant: The free radical theory of aging holds that under normal physiological conditions, free radicals in the body are constantly produced and eliminated, and are in a state of equilibrium.
Black tea is not only rich in antioxidant substances such as catechins, tea pigments, flavonoids, vitamin C, vitamin E, d-carotene and so on. Moreover, it contains a large number of trace elements with antioxidant effects, such as zinc, manganese, copper(the constituent element of SOD) and selenium(the constituent element of GSHPX).
Catechin, theaflavin, theanine and tea polysaccharide in black tea, especially complex flavonoids with high content, all have the function of scavenging free radicals, so they have the function of anti-oxidation and delaying cell senescence.
✵Anti-Cancer: Cancer is one of the most deadly diseases in the world. Since the late 1970s, scientists from all over the world have found that tea or tea extract can inhibit the development of various cancers.
✵Lower blood pressure: Tea has been reported to lower blood pressure. Theanine, an amino acid found in tea, ACTS as a brake or inhibitor on blood pressure by activating dopaminergic neurons, according to reports.
It is also found that the caffeine and catechins in tea can relax the blood vessel wall, increase the effective diameter of blood vessels, and lower blood pressure through vasodilation. China scientists found that tea pigment has significant anticoagulant, promoting fibrinolytic, prevent blood platelet aggregation, inhibit the action of the artery smooth muscle cell proliferation, can significantly reduce high-fat animal serum triglyceride, low-density lipoprotein, increase the serum high density lipoprotein cholesterol(HDL-c), and the significant inhibitory effect on the ACE enzyme have antihypertensive effect.
✵Lower blood sugar: The tea polysaccharide complex in black tea is the main component with the effect of lowering blood sugar. Tea polysaccharide complex is often called tea polysaccharide, which is a complex and varied mixture of black tea. The results of the determination of tea polysaccharides in several kinds of tea showed that the content of tea polysaccharides in black tea was the highest, and its component activity was stronger than that of other kinds of tea, because of the action of glycosidase, protease and hydrolytic enzyme in fermented tea.
The formation of relatively short length of sugar chain and peptide chain, short peptide chain is more easily absorbed, and the biological activity is stronger, which may be one of the reasons that fermented tea, especially black tea, the tea polysaccharide has better hypoglycemic effect than other teas.
✵Sterilization and anti-inflammatory: The main components of black tea soup color are theaflavins and theoglobin. Studies have shown that theaflavin is not only an effective free radical scavenger and antioxidant, but also has obvious antibacterial effects on bacillus botulinum, enterobacillus, staphylococcus aureus, bacillus capsulatum, and bacillus cereus. Besides, theaflavins have certain inhibitory effects on the invasion of the influenza virus and the infection of rotavirus and enterovirus.
✵Diuretic and detoxification: The diuretic function of theine in black tea is realized by the kidney promoting the filtration rate of water in urine. In the meantime, the stimulative action of theine to the bladder can assist diuresis, conduce to a decanter again, remove wine poison. At the same time, the tea polyphenols in black tea can make the nicotine of tobacco precipitate.
And excreted with urine, but also can remove free radicals in smoke, reduce the toxic effect of smoke on the human body. For heavy metal poisons, tea polyphenols have a strong adsorption effect, so drinking more tea can also alleviate the toxic effects of heavy metals.
✵Black tea and health care: Black tea is different from other teas in the selection of raw materials and processing technology (fermentation and flowering), which leads to the particularity of the composition and proportion of the biochemical components of black tea and the resulting pharmacological functions.
The tea formed through the participation of microorganisms in the stacking process is different from red and green tea in terms of its contents and functions. Play a significant role in lowering blood lipids, blood pressure, glucose, weight loss, prevention of cardiovascular diseases, anti-cancer and other aspects. Research shows that the special health care effect of black tea is related to its rich tea polysaccharide.
Good use in daily life.
✵1. It has a certain effect on the treatment of habitual constipation: Spring comes, is the season of gastroenteritis, hot drink black tea, especially aged black tea has a better effect on the treatment of chronic enteritis. In the meantime, drinking black tea is able to eliminate abdominal distension, have the magic use that treats dyspepsia.
✵2. Black tea shampoo can relieve itchy hair: Black tea contains rich protein, tea polyphenols, tea polysaccharides, vitamins, and minerals, etc. Among them, protein, tea polysaccharides, vitamins, and minerals are essential nutrients for hair growth, and tea polyphenols have antibacterial, anti-inflammatory and allergic effects.
Therefore, black tea juice is a natural nourishing hair shampoo, which has the effect of removing dandruff, relieving itching and protecting hair.Long-term use can make your hair clean and shiny.
✵3. Use black tea to wash feet can quickly relieve fatigue, deodorize and inhibit bacteria: Black tea contains abundant tea polyphenols, tea polysaccharides, vitamins, and minerals, etc. Tea polyphenols, tea saponins, have antibacterial and anti-allergic effects. The aromatic substances in black tea have the functions of deodorizing, anti-inflammatory, etc. Moreover, black tea has strong compatibility, or you can choose the appropriate Chinese medicine, such as safflower, eucommia ulmosus, etc., to be prepared into medicinal tea foot bath liquid, which ACTS on the foot meridian, to achieve the purpose of whole-body regulation.
Boil black tea (1:25 ~ 50) with proper concentration according to your needs, or use Chinese medicine to soak your feet in water temperature of about 35 ~ 40℃, which can quickly relieve fatigue, recover energy, deodorize and inhibit bacteria.
Who should not drink black tea, black tea drinking taboos.
Black tea is very good for the body, through a lot of research proves that black tea has functions lower three high levels, weight loss effect, but what is not perfect in the world! There are seven kinds of person should not drink this tea: tea polyphenols have a certain convergence effect on the gastrointestinal mucosa, so constipation patients drinking black tea will aggravate constipation.
People with neurasthenia or insomnia should not drink tea: because the caffeine in tea leaves has a clear excitatory effect on the cerebral cortex, so this kind of patients if drinking tea will make the brain in a state of extreme excitement and do not get a rest.
People with iron deficiency anemia should not drink tea: the tannic acid in tea leaves can cause iron in food to form deposits that are not absorbed by the body, exacerbating the anemia.
People with calcium deficiency or fracture should not drink tea: Because the alkaloids in tea inhibit calcium absorption in the duodenum, they can also lead to calcium deficiency and osteoporosis.
The person that has canker disease better not drink tea: Because theophylline in tea can reduce the activity of phosphodiesterase, make gastric wall cells secrete a lot of gastric acids. Gastric acid too much will inevitably affect the healing of the ulcer surface.
People with urinary stones should not drink tea: because tea contains more oxalic acid, drinking tea will aggravate the development of stones.
Do not drink tea when you have a fever: Because tea contains theophylline can increase the temperature of the human body so that the medicine's cooling effect greatly reduced to disappear. Therefore, people with a fever should not drink tea. Although tea has very good health care effect, not every time period can be drunk, especially female friends have to pay special attention to!
✵Female friends are less suitable for drinking tea period:
1. Menstrual period: female friends during menstruation, menstrual blood will be used up a lot of iron in the body, so female friends at this time should take more vegetables and fruits rich in iron, such as spinach, grapes and apples. And the tannic acid that contains as high as 50% in tea, it can hinder our bowel mucous membrane to the absorption of iron, greatly reduce the absorption degree of iron, it is easy to combine with the iron in chyme or blood-enriching medicine in intestines and intestines consequently, produce the phenomenon of precipitation.
2. During pregnancy: the caffeine concentration in the general strong tea is as high as 10%, which will increase the urine and heartbeat frequency of pregnant women, will aggravate the pregnant women's heart and kidney load, more likely to lead to pregnancy poisoning, so pregnant women had better not drink tea.
3. During lactation: if you drink a large amount of tea during this period, the high concentration of tannic acid contained in the tea will be absorbed by the mucous membrane, affecting the blood circulation of the mammary gland, thereby inhibiting the secretion of milk, resulting in insufficient milk secretion. In addition, theobromine in tea can seep into milk and indirectly affect the baby, which is harmful to the baby's health.
✵The above crowd is those should not drink tea, which people can not drink black tea?
According to scientific verification and analysis, it is also proved that tea contains anti-cancer, blood pressure reduction, weight loss, and other beneficial health care effects, but not everyone is suitable for drinking, the following several conditions should be paid attention to.
1. Vegetarians: easy to lack vitamin B, iron, calcium and other nutrients, tea ingredients will hinder the human body to absorb these vitamins, so vegetarians should drink tea with more appropriate quantity.
2. Those too thin, malnutrition and protein deficiency: tea can prompt fat loss, hinder the body's absorption of protein, so too thin, malnutrition and protein deficiency people, better control on tea drinking; on the contrary, drinking tea is definitely an economical and effective way for people who want to be thin.
3. Patients with special diseases: for example, patients with hypoglycemia, tea can rapidly lower human blood glucose in a very short time, so patients with fasting and hypoglycemia should avoid drinking tea.
4. Tea time: should be chosen before meals or after, about two hours is appropriate, and better drink tea on an empty stomach. Drink tea immediately after the meal, the tannic acid of tea can make the protein in food solidify into particles, the stomach and intestines of the person are not easy to digest and absorb this kind of particles.
This article introduces the functions of black tea, the drinking and brewing methods of black tea, the identification methods of black tea, the varieties of black tea and other knowledge.
✵Dietary nutrition: Black tea contains rich nutritional ingredients, and the most important are vitamins and minerals, protein, amino acids, sugars, and other substances. For the staple food of beef, mutton and cheese, and the lack of vegetables and fruits in the diet of the residents of the northwest region and mountain area, drinking black tea for a long time, is an important source of their essential minerals and various vitamins.
✵Lower blood sugar: The tea polysaccharide complex in black tea is the main component with the effect of lowering blood sugar. Tea polysaccharide complex is often called tea polysaccharide, which is a complex and varied mixture of black tea. The results of the determination of tea polysaccharides in several kinds of tea showed that the content of tea polysaccharides in black tea was the highest, and its component activity was stronger than that of other kinds of tea, because of the action of glycosidase, protease and hydrolytic enzyme in fermented tea.
✵1. It has a certain effect on the treatment of habitual constipation: Spring comes, is the season of gastroenteritis, hot drink black tea, especially aged black tea has a better effect on the treatment of chronic enteritis. In the meantime, drinking black tea is able to eliminate abdominal distension, have the magic use that treats dyspepsia.
Black tea is very good for the body, through a lot of research proves that black tea has functions lower three high levels, weight loss effect, but what is not perfect in the world! There are seven kinds of person should not drink this tea: tea polyphenols have a certain convergence effect on the gastrointestinal mucosa, so constipation patients drinking black tea will aggravate constipation.
✵Female friends are less suitable for drinking tea period:
