Method for efficiently extracting salidroside and rosavin from rhodiola rosea

Abstract

The invention discloses a method for efficiently extracting salidroside and rosavin from rhodiola rosea. The method comprises the following steps of: selecting rhodiola rosea roots, drying, and rapidly air-cooling; crushing the dried rhodiola rosea roots, and screening into the granularity of 40 meshes; adding 2% of hexadecyl trimethyl quaternary ammonium bromide and 80% alcohol solution of 1% of potassium acetate in an amount of 10 times of the weight of the rhodiola rosea into the obtained rhodiola rosea powder, performing dynamic countercurrent extraction at a temperature of 25 DEG C so as to obtain an extracting solution; performing vacuum concentration, concentrating into an extract proportion of 1.15-1.20; adding acidified pure water in an amount of 7 times of the weight into the obtained extract, fully stirring, precipitating in a refrigerated storage and staying overnight, and separating the precipitate; and performing spray drying, thereby obtaining the product. The production method provided by the invention is a one-step extraction method, the dynamic countercurrent extraction is adopted, extraction, separation and purification are simultaneously performed, the method is high in extraction speed, high in efficiency, low in energy consumption, simple in process and low in cost, and the product recovery rate is obviously improved.

Description

technical field [0001] The invention relates to the technical field of chemical engineering, and more specifically relates to a method for efficiently extracting salidroside and rosevin from rhodiola rosea. Background technique [0002] Rhodiola rosea is a very popular medicinal and edible original plant in China and Eastern European countries. Studies have shown that Rhodiola rosea can significantly delay the occurrence of fatigue or promote the recovery of fatigue with little toxicity. Rhodiola rosea is also called Golden root, arctic rose, and rhodiola rosea are perennial or subshrub plants of the sedum family Rhodiola genus. They are widely distributed in Xinjiang, Northeast China, Russia and other places in China. Nutrients with such effects are widely used in herbal remedies. [0003] Traditional Chinese medicine believes that Rhodiola is sweet, bitter, and flat, and belongs to the lung and heart meridian. [0004] Modern pharmacological studies have shown that Rhodi...

AI Technical Summary

Problems solved by technology

[0006] Overview of the research on the production process of Luosaiwei: There are many research reports on Rhodiola rosea extract at home and abroad, mainly Rhodiola rosea extract with salidroside as the index component. Rhodiola rosea, etc., but Rhodiola alpine and Rhodiola daflora are used as the main medicinal materials to extract. In the past one or two years, with the in-depth research on the biochemistry and pharmacology of Rhodiola rosea, the main active ingredient is rosevin. The composition of Rhodiola rosea extract has been widely used, and its main extraction process is based on the general Rhodiola rosea extraction process, mainly alcohol dissolution reflux extraction, extraction, ultrasonic assisted extraction, and the use of macroporous resin concentration to obtain network plugs. Rhodiola rosea extract of vitamin active ingredients, but the yield is low and the cost is high, so it is necessary to develop a new extraction process