Method for comprehensively extracting tea oil, flavonoids compounds, tea saponin and tea polysaccharide

Abstract

The invention provides a method for comprehensively extracting tea oil, flavonoids compounds, tea saponin and tea polysaccharide. The method comprises the following steps of: extracting the tea oil in a dry oil-tea cake by using a low-polarity solvent, and extracting the oil-tea cake by using ethyl acetate, an ethanol-water solution and water in turn to obtain flavonoid glycosides compounds, the tea saponin and the tea polysaccharide respectively. According to the method for comprehensively extracting the tea oil, the flavonoids compounds, the tea saponin and the tea polysaccharide, provided by the invention, five effective components in the oil-tea cake can be comprehensively extracted in the same process, and the method has the advantages of fewer steps, low toxicity of the solvent and good extracting effect.

Description

technical field [0001] The invention relates to the technical field of plant extracts, in particular to a method for comprehensively extracting tea oil, flavonoids, tea saponin and tea polysaccharides. Background technique [0002] Camellia oleifera is one of the oldest woody edible vegetable oils in my country and one of the four largest woody oil plants in the world. It is named because its seeds can be used to extract oil (tea oil) for consumption. Camellia oil is rich in unsaturated fatty acids such as oleic acid, linoleic acid, and linolenic acid, with a content as high as 93%. Long-term consumption of camellia oil can reduce the cholesterol content in serum and effectively prevent cardiovascular diseases, comparable to the most popular edible oil in the world - olive oil. [0003] The residue of camellia oleifera seeds after oil extraction is called camellia oleifera cake, which is generally used as fuel, or simply processed as feed. However, studies have shown that...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the current problem of lack of methods for effectively extracting multiple active ingredients from Camellia oleifera cake in the same process flow, and to provide a method for comprehensively extracting tea oil, flavonoids, and tea saponin from Camellia oleifera cake. and tea polysaccharides, this method effectively avoids the loss of another active ingredient when extracting one active ingredient, and obtains a better extraction effect