Physical and chemical identification
1, take the product powder 2g, add ethanol 20ml, heated to reflux for about 10min, filtered, filtered hydrogenated test solution to adjust the pH to 8-9, filtered, German liquid evaporated, the residue added water 10ml to dissolve, insoluble The material, take the filtrate 5ml, evaporated, add 1ml of acetic anhydride and 2 drops of sulfuric acid, the solution was red-purple, after placing into a tan.
2. TLC was used to take 0.2g of the product powder, add 2ml of methanol, warm the water bath for 80min, and filter. The filtrate was evaporated to dryness, and 1 ml of n-butanol was added to dissolve it as a test solution. In addition, gallic acid and diterpene saponin (Ziyu-glycoside I) were used as the reference substance, and n-butanol was added to prepare a mixed solution containing 5 mg each as a reference solution. Take 10 μl of each of the above two solutions, place them on the same silica gel H thin plate, and develop 10 cm with chloroform-methanol-water (6:3:1, lower layer). Remove and dry. Develop color with iodine vapor. In the chromatogram of the test sample, the spots of the same color appear on the positions corresponding to the chromatogram of the reference substance.
Health-preserving Herbal Tea, listen to the name, you can see three meanings. One is to keep in good health, give a person a very healthy feeling; Second, flowers and plants, Chinese traditional medicine treatment is to use some natural flowers and plants to regulate the body; Third, tea. China has been the birthplace of tea culture since ancient times. A warm cup of tea gives people a warm feeling. So what are the benefits of herbal teas?
The reason why health herbal tea can be called health is because it can recuperate people's body deficiencies to a certain extent. For example, regulating the spleen and stomach, nourishing liver and eye protection, promoting blood circulation and removing stasis. Some health care herbal tea long-term drinking, but also can make people produce antibodies, to achieve the anti-cancer effect. As we all know, with the aggravation of pollution and the change of living habits, cancer happens more and more frequently, which is one of the reasons why so many people pay attention to health preservation.
Everyone is in pursuit of health, and health herbal tea is the simplest way. Do not need to spend much energy, take up how much time, spend how much money, how much mind. A cup of warm health herbal tea, in the office, hand can be to, can quench thirst, but also health, why not?
Health Scented Tea,Jasmine Flower Tea,Lemon Scented Tea,Blooming Jasmine Tea
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