The hangover relieving function of Pu 'er tea has been recognized for a long time in the industry. Not only that, among many hangover products, Pu 'er tea is not only a leader, but also a special product in Pu 'er tea-Pu 'er tea paste, which has always enjoyed the reputation of "the first product to sober up" since ancient times.
The catabolism of alcohol in human body mainly depends on two enzymes: one is alcohol dehydrogenase and the other is acetaldehyde dehydrogenase. Alcohol dehydrogenase can remove two hydrogen atoms from alcohol molecules and decompose ethanol into acetaldehyde. On the other hand, acetaldehyde dehydrogenase can remove two hydrogen atoms from acetaldehyde, thus converting acetaldehyde into acetic acid and finally decomposing it into carbon dioxide and water.
At the same time, L- alanine contained in Pu 'er tea paste will produce a large amount of pantothenic acid in human body and promote normal alcohol metabolism. In addition, L- cysteine can react with alcohol, accelerate alcohol metabolism, absorb a certain amount of alcohol, and improve human tolerance to alcohol. It can be converted into cystine, and taurine can repair damaged liver cells, brain cells, gastric mucosa and tissues. So in this sense, the process of hangover is also a process of protecting the liver.
2, digestion, greasy effect
Anyone who has tasted Pu 'er tea paste knows that drinking Pu 'er tea paste after eating beef and mutton or eating big fish and meat is extremely fast. There used to be a misunderstanding that Pu 'er tea paste can help digestion and relieve cattle annoyance because caffeine contained in Pu 'er tea paste stimulates gastrointestinal peristalsis, thus achieving the effect of rapid digestion. But this is not the real reason. Scientists once did an experiment: put a few pieces of meat in a wire cage for an eagle to eat. After a while, take it out of the cage and the pieces of meat disappeared. Therefore, the previous statement that gastrointestinal peristalsis helps digestion was shaken. It is recognized that there are some substances in gastric juice that can digest meat. Among them are pepsin, glucoamylase and so on. This experiment also indirectly denied the theory that Pu 'er tea cream contains caffeine to stimulate gastrointestinal peristalsis and help digestion.
In the subsequent fermentation process of Pu 'er tea paste, its inherent cellulase and pectinase are decomposed into a large number of derivatives under the interaction of other enzyme systems. These derivatives not only contain glucoamylase, but also contain other enzymes that react with the biological enzyme system of human gastrointestinal tract, which can increase the secretion of pepsin, promote the improvement of pepsin activity, strengthen the digestion ability of the stomach for protein food, and enhance the digestion function of human body.
3, the effect of nourishing the stomach
One of the most remarkable features of Pu 'er tea paste is that it can be drunk on an empty stomach, that is, it does not harm people's gastrointestinal tract and has the effect of nourishing the stomach. There are three reasons:
First, after fermentation-extraction-fermentation-membrane filtration, Pu 'er tea paste is basically small molecules, which is beneficial to human gastrointestinal absorption and has little irritation. Green tea is different from oolong tea. The "cold" of green tea in Chinese medicine is probably related to the macromolecules it contains. Similarly, Pu 'er tea without artificial fermentation and natural fermentation (commonly known as raw Pu 'er tea) cannot be drunk on an empty stomach because its molecular weight is too large.
Second, the pectin contained in Pu 'er tea paste is much higher than other teas. It not only embodies good adsorption, but also combines and eliminates bacterial toxins and other harmful substances in the body, such as lead, mercury and radioactive elements in heavy metals, and plays a detoxification role; At the same time, it can protect gastric mucosa and help digestion For people with gastric ulcer or gastritis, the pectin in Pu 'er tea can form a thin film and adhere to the wound of the stomach to promote the healing of the ulcer surface, which is suitable for patients with gastric diseases.
Thirdly, caffeine contained in Pu 'er tea paste can neutralize gastric acid in human body, thus improving digestive function.
The key point of the stomach-nourishing effect of Pu 'er tea paste lies in the fermentation quality. We can do an experiment: brew three kinds of tea samples: green tea, Pu 'er tea (three-year-old tea) and Pu 'er tea paste, and then put three cups of tea soup in the refrigerator. When the temperature of the tea soup drops to about 5 degrees above zero, take it out and observe whether the tea soup changes. At this time, we will find that the tea soup of green tea has a lot of milky suspended solids, which is the most turbid; Followed by Pu 'er tea, containing a small amount of milky suspended matter, the tea soup is brown, dark and opaque; The best one should be Pu 'er tea paste, without visible suspended matter and impurities. The color of tea soup is slightly darker than when it was just brewed. This experiment tells us that unfermented tea contains a lot of macromolecular substances. After the temperature of its tea soup drops, it leads to the chemical reaction of material reduction and polymerization, resulting in serious turbidity or slight turbidity, which is due to the insufficient fermentation process and the incomplete degradation of many substances. Pu 'er tea paste is the product of deep processing of Pu 'er tea, almost all of which are small molecules. Although there are also reduction and polymerization, the result is the polymerization of small molecules, but the tea soup is black.
We advocate that people who drink Pu 'er tea cream drink a cup of warm Pu 'er tea cream on an empty stomach every morning, especially those with hyperacidity or gastritis or gastric ulcer. If you add a spoonful of honey when drinking, the effect of nourishing the stomach will be more obvious.
What needs to be declared here is that the key to nourishing the stomach lies in "nurturing". This kind of "cultivation" is not immediate, but the result of continuous "persistence", which of course includes maintaining good living habits. 1, the potential function of anticancer
The research of anticancer drugs has become a worldwide problem. In recent years, many scientists around the world have turned their attention to microorganisms and enzymes, mainly because they have seen that many fermented products contain "drug sources" that can be used as anticancer substances. The reason why the international community favors biopharmaceuticals is that it is increasingly seen that this "drug source" may be found by using biological preparation technology.
As far as tea products are concerned, if there is such a potential anti-cancer "drug source", then the only possibility can only be Pu 'er tea. This is because:
1. Pu 'er tea is a fermented food. During the fermentation of Pu 'er tea, due to the "intervention" of various microbial flora and enzyme systems, a large number of derivatives were produced in the subsequent material degradation and evolution. The "step transformation" of these derivatives can easily form a potential anti-cancer "drug source", which provides a "material" basis for the potential anti-cancer function of Pu 'er tea.
2. Many scientists found the potential "drug source" of anti-cancer from the thearubigins products of Pu 'er tea. Although this research is still in the laboratory stage, there is still a long way to go before the real results. But it provides a clearer theoretical basis for the study of anti-cancer mechanism of Pu 'er tea.
3. Pu 'er tea has the characteristics of "practice first". This "practice" has a process of thousands of years. Zhao Xuemin, the author of Compendium of Materia Medica in Qing Dynasty, once commented on Pu 'er tea paste, a special variety of Pu 'er tea: "Pu 'er tea paste can cure all diseases". This view is obviously suspected of violating scientific common sense. The question is, after all, Zhao Xuemin was a famous pharmacist in the Qing Dynasty, and he was also recognized as a very rigorous scholar. Is this his "clerical error"? Or did he put forward this view by synthesizing a large number of cases? When we look through his Compendium of Materia Medica and look closely at nearly a thousand kinds of drugs he has imported, only Pu 'er tea paste is endowed with the saying of "treating all diseases". Why doesn't he say that other medicinal materials can cure all diseases? Does this "exaggerated" evaluation imply another reason: when Pu 'er tea paste can treat some incurable "incurable diseases" in his opinion, he can't find a more accurate word to summarize it, so he can only express it in such a highly generalized word as "treating all diseases" to remind people, even future generations, to pay attention to Pu 'er tea paste. In fact, before human society entered the modern scientific and technological society, people often expanded the application scope of a certain "medicine" in order to produce curative effects on various diseases. When a "medicine" can be applied to a variety of diseases, this "medicine" is immediately regarded as a "magic medicine". Such examples are not only found in China, but also in the West. For example, the "aspirin" invented by 1899 was originally only used to treat rheumatoid arthritis. But later, its treatment range became wider and wider, such as analgesia, antipyretic, antithrombotic and cardiovascular diseases. In recent years, many research departments believe that it has anti-cancer effect. It seems that "aspirin" is a treasure, and a new "indication" is given almost every ten years. Therefore, Zhao Xuemin's theory of "treating all diseases" cannot be simply killed with a stick. So, in the era of Zhao Xuemin, what were the symptoms of "incurable disease"? Because there was no cancer in ancient China, all diseases that could not be diagnosed by medicine at that time were collectively called "incurable diseases". Does Zhao Xuemin's "cure-all" include cancer? In recent years, Monton's biomedical research group has studied a variety of Pu 'er tea paste-Pu 'er stone (a kind of Pu 'er tea paste, also known as "Yulong wins snow"). They found that the stone of Pu 'er tea has completely separated from the shape of Pu 'er tea, and its appearance presents a serious frost shape, which is caused by the long-term aging of Pu 'er tea paste. This cream is a compound of tea catechin and caffeine. At the same time, the researchers also found the compound of thearubigins in Pu 'er tea paste (because our technical means can't separate and purify the monomer of thearubigins, we can only separate a complex reddish-brown phenolic compound. It includes substances of enzymatic oxidative polymerization and condensation of catechins, and non-enzymatic reaction products of oxidized catechins with polysaccharides, protein, nucleic acids and proanthocyanidins. After purification, the extract has strong permeability.
The researchers used carcinogens to induce diseases in experimental mice. All experimental mice were induced to become cancerous in a period of time. Then, the above-mentioned purified "drugs" were orally taken or injected into experimental mice for group tests. The results showed that the purified drug "captured" and "wrapped" the cancer cells in the experimental mice. The special microorganisms contained in Pu 'er tea paste were structurally modified, so that their endonucleases produced "cut" the whole cancer cells, blocked the peptide chain, and made them lose their "nutrient source", resulting in the cancer cells eventually "withering" and the possibility of division and regeneration, thus achieving the effect of killing cancer cells.
However, this experiment is only carried out on experimental mice, and it is only a "prelude" to the research of anticancer drugs. It is limited to the laboratory stage, and there is still a considerable gap from drugs. What needs to be declared is that this kind of material with the embryonic form of "medicine source" comes from Pu 'er tea paste, but it has also undergone many times of "transformation" of biotechnology. It can't be simply concluded that Pu 'er tea cream has direct anticancer effect.
However, we can't ignore that the human body is actually a "biological processing factory". We don't know whether Pu 'er tea paste can be reprocessed after entering the human body, or even what kind of effect this "reprocessing" can achieve. So we can only give it a conservative definition: that is, Pu 'er tea cream has potential anticancer effect.
2. The potential function of lowering blood pressure and blood lipid.
Pu 'er tea is the product of fermentation. Many fermented products, including Pu 'er tea, contain statins, such as lovastatin and simvastatin, which are medicinal components for lowering blood lipid. Although their content is very small, they can't replace "drugs", but they also have certain pertinence. It is worth noting that international social medical reports believe that statins (mainly chemical synthesis) are known to interfere with coenzyme Q 10 in human body, and long-term use of statins will have side effects, which may damage the liver and lead to cancer. Therefore, the first process of lowering cholesterol should not be drugs, but should be replaced by a comprehensive nutrition plan with cholesterol-lowering effect. Obviously, because statins are natural products of fermentation process, Pu 'er tea is not a "chemical synthesis of western medicine", and naturally becomes the first choice of this nutrition plan.
The diuretic effects of caffeine and theophylline in Pu 'er tea have potential effects on reducing hypertension and hyperlipidemia. It has been proved by tests that the caffeine content in Mengdun Pu 'er tea paste is the highest among all teas. Many hypertensive patients take hydrochlorothiazide, indapamide, furosemide, dapsone and so on. These drugs are basically diuretics. Because diuresis is one of the main means to treat and relieve hypertension. Caffeine in Pu 'er tea paste can also stimulate human bladder to achieve diuretic effect. At the same time, caffeine and theophylline in Pu 'er tea paste can relax vascular smooth muscle, dilate blood vessels and lower blood pressure to some extent. More importantly, caffeine in Pu 'er tea paste can decompose sodium ions in blood. Our diet in China has the weakness of salty, and the sodium content is too high. Because a sodium ion will inevitably intercept five water molecules, the blood volume will increase, forming pressure on the blood vessel wall. Caffeine in Pu 'er tea can excrete sodium and reduce blood volume, thus indirectly lowering blood pressure.
In fact, the international medical community has been advocating two modes of treating hypertension: drug treatment and non-drug treatment. Moreover, non-drug therapy is superior to drug therapy and is the first choice for patients with hypertension. Pu 'er tea paste belongs to one of the categories of non-drug therapy.
3. Potential hypoglycemic function.
In China and Japanese folks, the experience of treating diabetes with coarse old tea is often used. The high content of oligosaccharides in Pu 'er tea paste coincides with this characteristic. This is because:
1. The raw materials of Pu 'er tea paste itself are mainly coarse and old leaves, which have the same or similar material basis as folk coarse and old leaves in treating diabetes. The content of tea polysaccharide increases with the increase of raw material roughness, and the older the raw material, the higher the content of tea polysaccharide;
Secondly, Pu 'er tea paste itself decomposes and transforms lipids and protein during repeated fermentation, which increases the content of tea polysaccharide. At the same time, tea polysaccharide is a bioactive polymer compound, and small oligosaccharides are separated by fermentation, degradation and transformation. It is precisely this small oligosaccharide that is the main "hero" of Pu 'er tea in lowering blood sugar.
3. Oligosaccharides (also known as oligosaccharides) are small polymers composed of 2-4 monosaccharides connected by glycosidic bonds, including functional oligosaccharides and ordinary oligosaccharides. These oligosaccharides have the same characteristics: not easily digested and absorbed by gastrointestinal tract, low sweetness, low calorie, non-insulin-dependent, not raising blood sugar, suitable for patients with hyperglycemia and diabetes. At the same time, it can also improve the microecological environment in human body, which is conducive to the proliferation of beneficial bacteria such as Bifidobacterium. Oligosaccharides contained in Pu 'er tea metabolize to produce organic acids, lower intestinal pH, inhibit the growth of intestinal salmonella and spoilage bacteria, prevent constipation, increase vitamin synthesis and improve human immune function, thus indirectly lowering blood sugar.