Method for preparing asparagus rutin

Abstract

A method for preparing asparagus rutin, which is characterized in that asparagus is first cleaned, dried and crushed, and then extracted with alcohol and water according to the weight-to-volume ratio of asparagus powder to alcohol water of more than 1:10-20, so that the contained asparagus Dissolve the D component as much as possible, and then filter the preliminary extract to remove small molecular impurities and decolorize to obtain the extract to be concentrated, then vacuum concentrate it at about 60°C to recover the ethanol in it, and obtain Concentrate, and deproteinize it by trichloroacetic acid method or improved Sevage method, filter to remove the filter residue to obtain filtrate, further add water to it to evaporate the trichloroacetic acid solvent, filter while it is hot, let the filtrate cool to precipitate rutin . The invention has perfect and feasible process, simple operation, saves labor force, reduces the total production cost of asparagus and rutin, and the extraction rate of asparagus and rutin can reach more than 70%, and the purity can reach more than 90%. The present invention can also extract rutin from discarded asparagus plants.

Description

technical field [0001] The invention relates to a plant rutin and an extraction method thereof, in particular to a preparation method of asparagus rutin. Background technique [0002] Asparagus is a perennial herbaceous plant of the genus Asparagus in the family Liliaceae, with the scientific name Asparagus officinalis L., also known as Asparagus officinalis L. It has a cultivation history of more than 2000 years. In the West, asparagus is regarded as a precious and high-quality vegetable that can be used both as medicine and food, and is known as the "king of dishes". [0003] The rutin contained in it, also known as rutin, is a flavonoid compound extracted from plants. Current research has found that it has various biological activities: (1) anti-inflammatory effect (2) vitamin P-like effect , Rutin has the functions of maintaining blood vessel resistance, reducing its permeability, reducing fragility, etc. It has the effect of removing fat in the fatty infiltrated liver...

AI Technical Summary

Problems solved by technology

The planting area of ​​asparagus in my country has reached 1 million mu, and they are mainly exported in the form of canned and quick-frozen products. During the processing process, there are waste materials such as bamboo skins and old stems that account for 30-40% of the raw materials, and asparagus has a large number of old stems after the harvest season. The stems cannot be utilized and these alone cause great economic losses