Method for extracting flavone from holboellia latifolia

Abstract

The invention discloses a method for extracting flavone from holboellia latifolia. The method comprises the following steps: adding cellulase, alpha-amylase and water into a holboellia latifolia powder, performing stirring and extracting for 0.5 h at 50-70 DEG C, then adding pectinase, performing stirring for 10 min at 50 DEG C, then performing standing for 24 h, performing filtering to remove precipitate, taking supernatant, then clarifying and filtering the supernatant, separating polysaccharide and flavone in filtrate, and leaving and drying a flavone feed liquid to finally obtain a light brown powdery product. The method has the beneficial effects that the holboellia latifolia flavone extracted by adopting the method has no peculiar smell, no chemical solvent residue, good water solubility and high content, can be applied to production of cosmetics, foods, medicines and the like, and has a greatly expanded application range and a better market prospect.

Description

technical field [0001] The invention relates to a method for extracting flavonoids, in particular to a method for extracting flavonoids from August melon, and belongs to the technical field of plant active ingredient extraction. Background technique [0002] August melon is a kind of wild fruit, which mainly grows in some mountainous areas of Hunan and Hubei in my country, and is also distributed in central and southern China, eastern China, Sichuan and Chongqing, Yunnan, Shaanxi, Gansu and other places. [0003] August melon fruit looks like a banana, with juicy pulp and sweet fruity taste. It is not only rich in vitamins and amino acids (including valine acid, methionine, isoleucine, phenylalanine, lysine, etc. that cannot be synthesized by the human body) , soluble fructose, starch, carbohydrates, organic acid protein and flavonoids, also rich in elements such as calcium, phosphorus, iron, zinc, selenium and various trace elements needed by the human body. It is called "w...

AI Technical Summary

Problems solved by technology

[0009] 1. Both n-butanol and acetic acid are high-boiling-point solvents, which require high-temperature drying and consume a lot of energy;

[0010] 2. During the high-temperature drying process, there will be gum odor and poor product quality;

[0011] 3. The content of flavonoids in the product is about 7%, which is relatively low and needs to be further improved;

[0012] 4. The product not only has poor water solubility, but also has chemical solvent residues, which limits the application and the market cannot be expanded