A kind of extraction method of papaya flavonoids

Abstract

The invention discloses a method for extracting flavonoids in chaenomeles sinensis. The method comprises steps as follows: (1), pulp and juice of chaenomeles sinensis are added to a tissue triturator; (2), pulping is performed; (3), the pulp is air-dried; (4), an air-dried product is smashed, ground into powder and discharged, and powder of the chaenomeles sinensis is obtained; (5), the powder of the chaenomeles sinensis is added to water and soaked, and an intermediate product A is obtained; (6), an organic solvent is added to the intermediate product A and stirred; (7), the mixture is left to stand for layering, an organic phase is separated, an aqueous phase is extracted twice with the same volume of an organic solvent, and the organic phase is obtained after three times of mixing; (8), a solid drying agent is added to the organic phase, the solid drying agent is removed, the mixture is subjected to reduced pressure evaporation on a rotary evaporator, and the organic solvent is removed; (9), a product obtained from the step (8) is absorbed and purified with D140 macroporous resin. The method for extracting the flavonoids in chaenomeles sinensis is simple in operation process, low in cost and suitable for large-scale popularization and application, and is not harsh for required conditions.

Description

technical field [0001] The invention relates to a method for extracting functional components in papaya, in particular to a method for extracting flavonoids from papaya with light skin. Background technique [0002] Papaya (Chaenomeles sinensis) is a plant of the genus Papaya in the family Rosaceae. Because the skin of the fruit is still smooth and does not shrink after drying, it has another name called papaya with light skin. Its fruit is rich in nutrition, rich in organic acids, amino acids, polysaccharides, flavonoids, triterpenes and their glycosides and other compounds. One of the most valuable new economic tree species, the market prospect is broad. At present, papaya has become a characteristic medicinal material and processed edible fruit in many places such as Heze in Shandong, Yunxian in Hubei, Baihe in Shaanxi, and Tongbai in Henan. [0003] For a long time, papaya with light skin has been cultivated with seedlings to build orchards, and the output is uneven. ...

AI Technical Summary

Problems solved by technology

However, the current extraction method of papaya flavonoids has the following technical defects: the extraction rate is low and the total flavonoid content in the extract is low, and the purity after purification is low

In addition, the hardness of papaya with papaya is relatively high, and it is difficult to fully crush it, which will also cause the flavonoids in papaya with papaya to be extracted more thoroughly.