Method for extracting general flavones from peony seed husks

Abstract

The invention provides a method for extracting general flavones from peony seed husks. The method comprises the following steps of (1) smashing and sieving the raw material peony seed husks to obtain peony seed husk powder; (2) accurately weighing the peony seed husk powder, adding an ethanol solution with the mass concentration of 40 percent to 95 percent according to a ratio of material to solution: 1:8 to 1:25 (g / mL), after uniformly mixing, keeping warm, standing and extracting in a water bath kettle for 0 to 90min, and homogenating for 1 to 4 times; (3) centrifuging to get a supernatant; (4) adopting part of supernatant in the step (3) as a sample solution, measuring a light absorption value of the solution, and calculating the concentration of the solution, thus measuring the content of a flavone compound; decompressing, concentrating, freezing and drying the other part of supernatant to obtain general flavone extracts in the peony seed husks. The method for extracting the general flavones from the peony seed husks, provided by the invention, is high in extraction ratio of the general flavones in the peony seed husks, and has the advantages of simplicity in operation, high applicability, suitability for mass production, and low cost.

Description

technical field [0001] The invention belongs to the field of food biotechnology, and in particular relates to a method for extracting total flavonoids in peony seed shells. Background technique [0002] Peony is a plant of the genus Paeoniae and Paeoniae, and is known as "the beauty of the country and the fragrance of heaven". Peony seeds are rich in fatty acids, proteins, 18 kinds of amino acids, various trace elements and multivitamins. Peony seed oil developed from peony seeds is a natural pollution-free food integrating nutrition and health care. Since peony seed oil was approved as a new resource food on March 22, 2011, the utilization of peony resources has become a research focus. [0003] Peony seeds are nuts protected by double layers of shell and seed shell. Peony seed oil can be extracted by removing the shells. The unsaturated fatty acid content of peony seed oil is more than 90%. It is known as the most suitable oil for human nutrition so far. Peony Seed shell...

AI Technical Summary

Problems solved by technology

[0006] The patent application number 201410638164.7 discloses a method for extracting flavonoids from peony seed skins. The flavonoids in the peony seed skins are extracted by water extraction. The extraction method uses water as a solvent, and the equipment requirements are not high, the cost is low, and the environment and human non-toxic, etc., but the extraction efficiency of flavonoids is low, and the extract contains a large amount of impurities

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