Radish is generally regarded as a descendant of wild radish native to Eurasia. It divides into two different species in Europe and East Asia: the European radish of the four seasons and the Chinese radish of East Asia. Radish is a very early vegetable planted by humans. It was recorded very early in Egypt four thousand years ago and China two thousand years ago. In the tenth century AD, the introduction of carrots from Iran into the European continent. In the 13th century, carrots were imported from Iran into China and developed into Chinese ecotypes. In the 15th century, they were found in Britain and developed into European ecotypes. They were introduced into the United States in the 16th century and were introduced from China in the 16th century. Japan.
White radishes and carrots are one word short, but the taste is very different. Many people are far away from carrots, but they are fond of white radishes. In fact, it is not the same category, white radish is a cruciferous radish is a white fat, and carrots are Umbelliferous carrot is a red-faced brawny. Carrots are not radishes but carrots.
ã€Efficacy and Function】
Chinese medicine believes carrots are flat and sweet. Bugan eyesight, heat detoxification.
1, protect cardiovascular health:
Diabetic patients are most suitable for daily consumption of carrots. Carrots are rich in hypoglycemic substances such as quercetin and kaempferol. These two elements can play a role in increasing coronary blood flow, which is of great help in reducing blood lipids. At the same time, it is also rich in carotene, which can act as a free radical that removes blood, blood, and intestines from the human body. It can achieve a preventive and therapeutic effect on cardiovascular disease. Of course, it can also promote the synthesis of adrenaline, so coronary heart disease, For hypertensive patients, eating carrots on a daily basis can help protect cardiovascular health.
2, freckle, maintain skin elasticity:
Carrots are rich in vitamin A, which is a great help for skin protection. If you can make a little cup of carrot everyday, you can have a freckle effect.
3, Liver and eyesight:
For those who often use eyes, if they eat carrots regularly, they can play a role in alleviating eye fatigue, promoting growth and development, and maintaining normal vision. It has a good effect on the prevention and treatment of dry eye and night blindness. For computer owners, they need more carrots daily.
4, enhance immunity:
The lignin in carrots can increase the body's immunity. At the same time, when carotene is converted to vitamin A, it also helps to enhance the body's immune function, and it plays an indirect role in eliminating cancer cells.
5, promote intestinal health:
The plant fibers in carrots are highly water-absorbent and can act as a laxative.
6, promote metabolism, increase blood circulation:
Vitamin A is an essential substance for the normal growth and development of bones, which helps the cells to proliferate and grow. It is an essential factor for the growth of the body. Especially for children, they can quickly grow if they regularly eat carrots.
7, delay aging:
Carotene can remove the free muscle of human skin and delay the aging of the human body. At the same time, it can maintain the health of epithelial tissue. Eating more carrots can make the whole person look more youthful.
Plant extraction process
1. Select plants/herbs. No more than ancient prescriptions, prescriptions, folk herbs to find. At present, common and uncommon herbs have been studied. At present, it is mostly to increase the amount of medicinal materials to extract and separate components with low content, or to find medicinal plants that have never been studied from miao medicine, Tibetan medicine, Mongolian medicine, Africa, Latin America and other places.
2. The extraction. Solvent petroleum ether, n-hexane, cyclohexane, benzene, chloroform, ethyl acetate, n-butanol, acetone, ethanol, methanol, water (low polarity → high polarity). Daily medicine decoction effective, water and ethanol and other solvents with large polarity, such as artemisinin boiling ineffective extraction with petroleum ether and other solvents with small polarity. Common medicinal materials water/alcohol/ether to go through, separation and identification of more compounds.
3. The separation. This is the most important work. In the solution extracted from the second step, there are dozens of compounds, usually by column chromatography, which is often referred to as the column flushing. It's a lot of work, it's boring, it's low tech. A master's student might do this every day for two years. The column for separating compounds, as shown below, is as large as 2 meters high and as small as 10 centimeters. Change the solvent condition of mobile phase, change the material of column, different conditions and different separation principles of column repeatedly punching, can be separated from the monomer compound.
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