Ginseng is generally divided into ginseng stem and leaf extract and ginseng root extract, which are mainly produced in Jilin Province, North Korea, and South Korea. According to the ginseng of the place of origin, we are often referred to as Northeast Ginseng and Korean Ginseng. Both are Panax ginseng C.A. Meyer species belonging to the genus.
According to the detection method of the National Pharmacopoeia, ginsenosides are divided into two methods: UV and liquid phase HPLC. UV is simply a colorimetric method. Using ginsenoside Re as a standard, the known content of Re is used to measure unknowns. The absorbance of total ginsenosides is then calculated for the unknown total ginsenoside content. There is also a UV detection method for the 03 version of health care products. Most of the health care products companies follow this test method. One of the biggest differences between the methods prescribed by the Pharmacopoeia is that it needs to be sampled during the test method. After a column with a filler, a part of the substance will be adsorbed by the substance in the column. Under normal circumstances, the same method of detecting the 03 version of the health care product will be far lower than the method of the pharmacopoeia, the UV80 specified by the Pharmacopoeia. The value measured by this method will be between 45-60%. HPLC determined the specific content of ginsenoside Re, Rg1, Rf, Rb1, Rc, Rb2, Rd7 saponin monomers and then calculate the total value, the liquid phase method will use 7 ginseng saponin standards, in general, Weigh the 7 standard products into a standard solution of known content, first measure the hplc detection spectrum of the standard solution, and then measure the liquid phase spectrum of the unknown content of ginseng total saponin, and then integrate the peak area of the monomer according to the calculation formula. Calculating the content of each saponin monomer, American ginseng saponin generally detects more than one ginsenoside, and the HPLC method is more precise and complicated than UV.
Generally, we use ginseng stems and leaves as raw materials for about 5 years. The saponin content in the year is low, and the finished product cannot meet the requirements of the National Pharmacopoeia. The same ginseng root extraction ginseng root must also be 4 More than a year can make ginseng saponins with high cost performance. Some people will ask why ginseng roots should be used instead of the main roots. The content of saponins in roots is greater than that of the main roots, and the price of raw materials of a main root is far greater than the roots. Required. What is the difference between the ginseng root extract and the ginseng stem and leaf extract? There is no way to distinguish whether a product is ginseng root or ginseng stem saponin by ultraviolet light, because it is measured as absorbance, if replaced with ginseng stem and leaf Or there is no way to distinguish between the method of detecting the content of ginseng root and the same. If the replacement of ginseng saponin and notoginsenoside is used, there is no way to distinguish the true and false of the goods. The HPLC method can clearly distinguish ginseng root, ginseng stem and leaf, American ginseng root, American ginseng stem and leaf, and Panax notoginseng. The main reason is because the content of ginsenoside in ginseng root and ginseng stem and leaf is Inconsistent.
In theory, the content of rb3 in ginseng root and ginseng stems and leaves is extremely low, but now many farmers are easy to mix ginseng stems and leaves with American ginseng stems and leaves when selling raw materials, so sometimes ginseng stem and leaf saponin products contain A small amount of rb3 is inside, and ginsenoside rf is unique to ginseng. If there is no rf in the product, it is definitely not ginseng. If rf is detected in other extracts, it is proved that ginseng ginseng extracted from ginseng is mixed. F11 is a ginseng saponin component unique to American ginseng. It can be seen whether the content of this monomer is mixed with American ginseng, and the rb3 content of American ginseng stems and leaves is relatively high. If there is too much rb3 in the test, it is proved to contain A lot of American ginseng components, this is a few ways to identify. What is the difference between several extracts of the same content? The content of rg1 re in ginseng root is lower than that of rb1, and the rb1 in the root is relatively high. The content of re rg1 rd in the stems and leaves of ginseng is much larger than the content of rb1. The main component of ginseng root is about one-half of the total saponins, and the rb3 component of the stems and leaves of American ginseng is the main component. The ratio of rc and rb3 in the seven stems and leaves is relatively high. Why do I compare these products, because the quality of the goods on the market is mixed, many buyers only need to buy uv80 ginsenoside, uv this test method, ginseng stem saponin, American ginseng stem and leaf saponins , Panax notoginseng saponins, Gynostemma saponins, this method can detect 80 uv, but the medicinal materials are not the same, their efficacy is not the same, in the use of medicines, health products, foods.