Liubao Black Tea

Introduction to Liubao Dark Tea

Liubao tea: Within the administrative area of ​​Wuzhou City, the fresh leaves of the Cangwu County group species, Guangxi large and medium-leaf species and their separated and bred varieties and strains of tea trees (Camellia sinensis (L.) O. Kuntze) are used as raw materials and processed according to a specific process to produce a black tea with unique quality characteristics.

The efficacy and function of Liubao black tea

1. It has bactericidal and anti-inflammatory effects

The main components of dark tea soup are theaflavins and thearubigins. Studies have shown that theaflavins are not only an effective free radical scavenger and antioxidant, but also have significant antibacterial effects on Clostridium botulinum, Bacillus enterocolitica, Staphylococcus aureus, Bacillus capsulatum, and Bacillus cereus. In addition, theaflavins have a certain inhibitory effect on the invasion of influenza virus and the infection of rotavirus and enterovirus.

2. It has the effect of lowering blood pressure

It has long been reported that tea can lower blood pressure. Recently, Japan reported that theanine, a unique amino acid in tea, can inhibit the rise of blood pressure by activating dopaminergic neurons. Here, it is also found that caffeine and catechins in tea can relax blood vessel walls, increase the effective diameter of blood vessels, and lower blood pressure by vasodilation. Lou Fuqing et al. in my country found that tea pigments have significant anticoagulant, fibrinolytic, platelet adhesion and aggregation, and inhibit the proliferation of arterial smooth muscle cells. They can also significantly reduce triglycerides and low-density lipoprotein in the serum of high-fat animals, increase high-density lipoprotein in serum, and have a significant inhibitory effect on ACE enzyme, which has a blood pressure-lowering effect.

3. It has antioxidant, anti-aging and longevity effects

The free radical theory of aging holds that under normal physiological conditions, free radicals in the human body are constantly generated and removed, and are in a state of balance. Dark tea not only contains rich antioxidant substances such as catechins, tea pigments, flavonoids, vitamin C, vitamin E, D-carotene, etc., but also contains a large number of trace elements with antioxidant effects such as zinc, manganese, copper (constituent elements of SOD) and selenium (constituent elements of GSHPB). The catechins, theaflavins, theanine and tea polysaccharides in dark tea, especially the complex flavonoids with a high content, have the function of removing free radicals, and thus have the effect of anti-oxidation and delaying cell aging.

4. Helps digestion, relieves greasiness, and soothes the stomach

The caffeine, vitamins, amino acids, phospholipids, etc. in dark tea help the body digest and regulate fat metabolism. The stimulating effect of caffeine can increase the secretion of gastric juice, thereby increasing appetite and helping digestion. Japanese scholars have proved through scientific tests that dark tea has strong functions of removing greasiness and digesting food, which is why meat-eating peoples particularly like this kind of tea.

The food structure of ethnic minorities in Northwest my country is beef, mutton and cheese, so there is a saying that "it is better to go without food for three days than to go without tea for one day", which has a lot to do with the effect of tea in "removing fat and grease" and "removing meat and fishy smell".

In addition, dark tea can improve the intestinal microbial environment and has the function of smoothing the stomach. In my country, there is a tradition of using dark tea to treat abdominal distension, dysentery, and indigestion.

5. Diuretic and detoxification, reducing the harm of tobacco and alcohol

The diuretic function of caffeine in dark tea is achieved by promoting the filtration rate of water in urine through the kidneys. At the same time, the stimulation of caffeine on the bladder can not only assist in diuresis, but also help sober up and eliminate alcohol poisoning. At the same time, the tea polyphenols in dark tea can not only precipitate the nicotine in tobacco and excrete it from the body with urine, but also remove free radicals in smoke and reduce the toxic effects of smoke on the human body. Tea polyphenols have a strong adsorption effect on heavy metal poisons, so drinking more tea can also alleviate the toxic effects of heavy metals.

6. It can improve sugar metabolism, lower blood sugar, and prevent and treat diabetes

The tea polysaccharide complex in dark tea is the main component for lowering blood sugar. Tea polysaccharide complex is usually called tea polysaccharide, which is a kind of mixture with complex components and large changes. The results of the tea polysaccharide content determination of several types of tea show that the tea polysaccharide content of dark tea is the highest, and its component activity is also stronger than other teas. This is because in fermented tea, due to the action of glycosidase, protease and hydrolase, relatively short sugar chains and peptide chains are formed. Short peptide chains are easier to absorb than long peptide chains and have stronger biological activity. This may be one of the reasons why fermented tea, especially dark tea polysaccharides, have better blood sugar lowering effects than other teas.

7. Anti-cancer and anti-mutation effects

Cancer is one of the diseases that causes the highest mortality rate in the world. Since the late 1970s, scientists from all over the world have found that tea or tea extracts have an inhibitory effect on the occurrence of various cancers. Hunan Agricultural University used the cutting-edge technology of modern drug screening, high-throughput screening technology, to conduct a high-throughput screening study on dark tea in the tumor cell model SGC7901, proving that dark tea has a significant inhibitory effect on tumor cells.

8. It can regulate blood lipids, blood sugar, blood pressure, and prevent vascular sclerosis

High blood lipid levels will cause lipids to deposit on the blood vessel walls, thus causing atherosclerosis and thrombosis. Dark tea has good fat degradation, anti-coagulation, and fibrinolytic effects, and significantly inhibits platelet aggregation. It can also relax the blood vessel walls and increase the effective diameter of the blood vessels, thereby inhibiting the formation of atherosclerotic plaques on the inner walls of the aorta and coronary arteries. It can achieve the purpose of lowering blood pressure, softening blood vessels, and preventing and treating cardiovascular diseases.

The rich tea polysaccharides in dark tea can reduce blood lipids and the activity of peroxides in the blood. From May 1990 to May 1991, the General Hospital of the Chinese People's Liberation Army observed the condition of 55 patients with hyperlipidemia among 155 veteran cadres in a retirement home after they took dark tea for 180 days (3 grams per day). Among them, the blood lipid content and the activity of peroxides in the blood of 50 patients who drank dark tea decreased significantly.

Epidemiological surveys conducted in key Pu'er tea consumption areas such as Xinjiang, Inner Mongolia, and Qinghai have shown that long-term drinking of dark tea has a good regulatory effect on human blood lipids, blood sugar, blood pressure, and vascular sclerosis, and has a good regulatory effect on body weight and body shape.

9. Supplement dietary nutrition

Dark tea contains abundant nutrients, the most important of which are vitamins and minerals, as well as proteins, amino acids, sugars, etc. For residents in the northwest region, who mainly eat beef, mutton and cheese and lack vegetables and fruits, long-term drinking of dark tea is an important source of essential minerals and vitamins for their bodies. It is said to be the tea of ​​life.

Side effects and contraindications of Liubao black tea

None

How to brew Liubao black tea

When drinking Liubao tea, put it in a clay pot, add mountain spring water, boil it over an open fire, and let it sit for a while until it is slightly warm. It tastes sweet and mellow, and has the effects of stretching, benefiting the spleen and eliminating stagnation, promoting fluid and relieving heat. If you add an appropriate amount of winter honey and mix it well, it can cure dysentery. Old Liubao tea stored for more than five years can cure children's convulsions and other symptoms. After being brewed overnight, the taste of Liubao tea remains unchanged, the soup color is not turbid, and it is refreshing and heat-removing.

The medicinal value of Liubao dark tea

Liubao tea is a warm tea. In addition to the health-care effects shared by other teas, it also has the effects of cooling off and removing dampness, improving eyesight and clearing the mind, and helping digestion. It can be drunk after a full meal to help digestion, or it can be drunk on an empty stomach to clear the stomach. In hot and humid weather, drinking Liubao tea can cool off and make you feel comfortable. After Liubao tea is left to age, many golden "golden flowers" can be seen in the tea. This is the yellow mold of beneficial quality. It can secrete amylase and oxidase, which can catalyze the starch in the tea leaves into monosaccharides, catalyze the oxidation of polyphenol compounds, make the tea soup brown-red, and eliminate the rough green taste. Scientific experiments and Liubao tea lovers' tea tasting practice have proved that in addition to containing a variety of amino acids, vitamins and trace elements necessary for the human body, Liubao tea contains more lipase than other teas. Therefore, Liubao tea has a stronger effect of decomposing greasiness, reducing human fat compounds, cholesterol, and triglycerides (triglycerides). Long-term drinking can nourish the stomach and mind, and lose weight and keep fit. Therefore, as people's living standards improve, Liubao tea is becoming more and more popular among consumers.

In addition to containing a variety of essential amino acids, vitamins and trace elements, Liubao tea contains more fat decomposing alcohol than other teas. Therefore, Liubao tea has a stronger effect of decomposing grease, reducing human fat compounds, cholesterol, triglycerides and high blood uric acid. Long-term drinking can nourish the stomach and mind, and help lose weight. In summary, the main health functions of Liubao tea are: 1. Refreshing the mind and eliminating fatigue; 2. Removing grease, aiding digestion, and sobering up; 3. Diuretic and detoxifying, sterilizing and anti-inflammatory to prevent diseases; 4. Lowering blood pressure and preventing arteriosclerosis; 5. Anti-radiation and inhibiting cancer; 6. Health and beauty, reducing obesity, and prolonging life.