Now that we have arrived in the grape-rich season, it is not only sweet and delicious, but also has a high nutritional and health value! Grape seeds and skin contain many substances that are beneficial to the human body, but eating grapes without eating them is not good for health.
Grapes not only look cute but also sweet. Its sugar content far exceeds ordinary temperate fruits such as apple pear apricots, up to nearly 20%. However, these are not the main reasons why grapes are valued. One of the main reasons why it has huge production today is because it is used to make wine. Wine is sought after by the people of the world for its health value, and this healthy reason is mainly the polyphenolic health ingredient in grape skin and grape seed.
Resveratrol in grapes has a strong anti-oxidation, anti-cancer, anti-cardiovascular diseases, anti-radiation, anti-inflammatory, antibacterial and other effects, but it is mainly found in the skin and seeds of grapes, the content of pulp is only leather A fraction of a percent to a few percent.
Another healthy ingredient is called polymeric procyanidins. The health effects of these substances have received more and more attention, including extremely high antioxidant activity, anti-cancer, anti-mutation, anti-radiation, prevention of cardiovascular diseases, promotion of tissue repair, and improvement of skin. The so-called grape seed extract is valuable because of it. This kind of material cannot be obtained by eating grapes because it exists only in the seeds.
At the same time, the skin and seeds also contain a large amount of tannins and flavonoids, which have antioxidant effects and are part of the reason for the health effects of wine. Therefore, it was suggested that grape vines should not be thrown away when they eat grapes. It is best to eat them together with the seeds. Otherwise, it is a pity to throw them into the trash. Really?
The result of chewing the grape skins and grape seeds was only the numbness of the tongue and it felt very uncomfortable. This is because it contains a lot of tannins, which will coagulate the proteins on the tongue, mouth and esophagus and produce a strong astringency. To a certain extent, this substance is like the tannins in persimmons. When it is eaten in large quantities, it damages the digestive tract. Even so, the active ingredient will still pass through and cannot be easily absorbed like wine.
It turns out that the resveratrol contained in the skin of the grapes is also good, as is the polymeric procyanidins, which are hardly soluble in water. Resveratrol is readily soluble in ether, chloroform, methanol, ethanol, acetone and the like. The polymeric procyanidins in grape seed are easily soluble in methanol, acetone, ethanol and ethyl acetate. Therefore, people use a mixture of ethanol and water to extract these ingredients.
This way you can understand why drinking red wine in moderation may be good for your health. While eating grape seed skin, it is asking for it.
Vitamins are a type of trace organic substances that humans and animals must obtain from food in order to maintain normal physiological functions. In terms of physiological functions, vitamins are neither a raw material for tissues nor a substance for supplying energy, but they are an indispensable substance for the body. It has many types and different chemical structures. Most of them are the components of the coenzyme (or prosthetic group) of certain enzymes. They are the indispensable compounds for maintaining the normal growth (growth, health, reproduction and production function) of the body. It plays a catalytic role in the body to promote the synthesis and degradation of major nutrients (proteins, fats, carbohydrates, etc.), thereby controlling metabolism. Vitamins are essentially low-molecular organic compounds. They cannot be synthesized in the body, or the amount synthesized is difficult to meet the needs of the body, so they must be supplied from the outside. The daily requirement of vitamins is very small (usually measured in milligrams or micrograms). They are neither a raw material for body tissues nor a substance for energy supply in the body. However, they do not regulate material metabolism, promote growth and development, and maintain physiological functions.
Vitamin K2 MK-7, Vitamin C, Vitamin E, Vitamin K2, Vitamin H, Vitamin D3
Xi'an Gawen Biotechnology Co., Ltd , https://www.ahualyn-bio.com