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Anonymous users2024-02-07Extraction method of rutin:
1. Rutoside.
It is found in rue leaves, tobacco leaves, orange peels, tomatoes, etc., and acacia flowers.
Rice and buckwheat flowers are especially abundant. The medicinal rutoside in China is extracted from acacia rice. After washing, use hot water and lime milk (adjust pH to boil for 20min, add borax, keep warm at 95-100 for half an hour, and filter while hot.
The filtrate was adjusted to pH=6-7 with hydrochloric acid, cooled to below 30, and the crystals were precipitated and separated to obtain crude rutin, which was dissolved, recrystallized and dried to obtain the finished product. The total yield is calculated in terms of acacia flowers.
2. After crushing the raw materials (generally using acacia buds), use hot ethanol.
Extraction, then ether, hot methanol.
and hot water many times crystallization refining. The residue obtained after the concentration of the extract is removed by solvent to remove other soluble pigments and other impurities, and then refined by ethanol, ether, hot methanol and hot water and activated carbon for multiple crystallization and activated carbon to obtain high-purity substances.
Pharmacological action - antiFree radicalsrole
Oxygen molecules are reduced in the form of single electrons in cell metabolism, and the O ions produced by oxygen molecules in single electron reduction then produce H2O2 and extremely toxic ·OH free radicals in the body, so it affects the tenderness of the product, and even accelerates the aging degree, and the addition of rutin to the product can obviously remove the reactive oxygen species free radicals produced by the cells.
Rutin is a flavonoid.
It is a strong oxidant that scavenges free radicals.
It can terminate the chain reaction of free radicals, inhibit the peroxidation of polyunsaturated fatty acids on the biofilm, remove lipid peroxidation products, and protect the integrity of the biofilm and subcellular structure, which plays an important role in the body.
The above content reference:
Encyclopedia - Rutin.
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Anonymous users2024-02-06Extract with hot water, add a small amount of borax to the water, and adjust the pH to 8-9 with calcium hydroxide. The extract was pH to 5 with hydrochloric acid. After standing, filter, the filter cake is washed with water until neutral.
The crude product was obtained and recrystallized with ethanol. This is the extraction of rutin from locust rice. If it is extracted from other medicinal materials, it is recommended to use ethanol or methanol, and it is not recommended to use water, because there are too many impurities extracted from water.
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Anonymous users2024-02-05RutinThe extraction rate is calculated: the unit is determined by itself, such as volume, mass, number, etc., divided by the total number and multiplied by 100%, and the rate is divided by the number of target substances divided by the total number of substances and multiplied by 100%.
The first way is to calculate the unit volume of the extract.
The content of active ingredients or markers in the , first of all, set the detection method of the active ingredient or marker, and then test the content of the active ingredient or marker after extraction, and calculate the number of milligrams per unit volume, that is, the extraction rate.
The second method is to calculate the content of solid matter in the unit volume of the extract, which can be sampled, weighed after drying, and calculated the weight ratio of the volume to the solid, which is the extraction rate.
Plants and Chinese Medicine.
Plant extracts include traditional Chinese medicine extracts in the epitaxy of the concept. Traditional Chinese medicine extract is a new type of traditional Chinese medicine product that integrates modern pharmaceutical technology, which is still traditional Chinese medicine in essence, but it is also partially used for other purposes such as cosmetics and health food other than drugs. In China, the main object of plant extracts is Chinese herbal medicine, so domestic plant extracts can also be called traditional Chinese medicine extracts to some extent.
The above content reference: Encyclopedia - Extract.
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