Method for extracting flavone from sea-buckthorn leaves and feed stuff containing the same
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An extraction method and technology of seabuckthorn leaves, applied in the field of extraction method and feed, can solve the problems of solvent residue, low yield, complex flavonoid extraction method, etc., and achieve the effect of simple operation
Inactive Publication Date: 2008-07-23
NORTHEAST AGRICULTURAL UNIVERSITY
View PDF0 Cites 9 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0004] In order to solve the problems of complex extraction method and low yield of flavonoids in seabuckthorn leaves, organic solvent residues and excessive addition of seabuckthorn leaves as feed additives, the present invention proposes a method for extracting flavonoids from seabuckthorn leaves and flavonoid-containing feed
The present invention uses CO 2 The supercritical method solves the problems of complex extraction process, low yield, residual solvent, and excessive addition of feed additives
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Examples
Experimental program
Comparison scheme
Effect test
specific Embodiment approach 1
[0010] Specific embodiment 1: The method for extracting flavonoids from seabuckthorn leaves in this embodiment is as follows: 1. Wash seabuckthorn leaves to remove impurities, dry and pulverize them, and pass through a 30-60 mesh sieve; 2. Use CO 2 Extraction of flavonoids by supercritical method, in which process parameters: extraction pressure is 10-50MPa, extraction temperature is 10-70℃, separation pressure is 1-10MPa, separation temperature is 15-75℃, CO 2 The flow rate is 100-200L / min, and the extraction time is 0.5-5h; 3. Adsorb the extracted liquid substance with X-5 resin, and then elute it with ethanol. Dry under certain conditions for 1 to 6 hours.
specific Embodiment approach 2
[0011] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that in step 2, dry and pulverize and pass through a 40-50 mesh sieve. Others are the same as in the first embodiment.
specific Embodiment approach 3
[0012] Specific embodiment three: the difference between this embodiment and specific embodiment one is that in step two, dry and pulverize and pass through a 45-mesh sieve. Others are the same as in the first embodiment.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to an extraction method and forage of flavone, in particular to a method of extracting flavone from sea buckthorn leaves and to the forage containing flavone, solving the complicated method, low yield, organic solvent residue and much addition when sea buckthorn leaves are taken as forage addition in the prior method of extracting flavone from sea buckthorn leaves. The method of the invention comprises 1 to wash, remove the impurity, dry and grind the sea buckthorn leaves; 2 to extract the flavone by CO2 super-critical method; 3 elution and vacuum dry. The forage comprises corn, soybean meal, fish meal, soya-bean oil, table salt, calcium hydrogen phosphate, methionine, choline chloride, multi-dimensional, microelements, stone powder and flavone. The extraction method and forage of flavone has the advantages of having easy operation, completing the extraction at one time without organic solvent residue, with extraction rate up to 98%, total yield up to 5%, easily realizing industrialization, having high content of active ingredient of flavone over 50%, addition of flavone of 0.01% to 1% in the forage, increasing the utilization rate of protein and other advantages.
Description
technical field [0001] The invention relates to an extraction method and feed, in particular to a method for extracting flavonoids from seabuckthorn leaves and flavonoid-containing feed. Background technique [0002] Seabuckthorn belongs to the genus Seabuckthorn of the family Echinacea, and it is a wild shrub or small tree with comprehensive nutritional components. It is rich in biologically active substances, multivitamins and trace elements, and has no chemical pollution. It has a wide range of edible and medicinal values. . [0003] However, the existing extraction process of active ingredients in seabuckthorn leaves is complex, the content of active ingredients in the obtained extract is not more than 10%, the yield is only 1.05%, and there are problems such as residual organic substances. In addition, in the application research process of seabuckthorn as a feed additive in animal husbandry production, the added amount is more than 5%, and the pertinence of applicatio...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more