Fast, green and high-efficiency extraction method of silkworm excrement flavone and detection method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A flavonoid and green technology, which is applied in the field of rapid, green and efficient extraction of flavonoids from silkworm flavonoids, can solve problems such as being unsuitable for large-scale production requirements, cumbersome steps, low safety, etc., and achieves avoiding environmental pollution and food safety problems, the process is simple, and the filtering process is simple. Difficulty reduction effect
Active Publication Date: 2019-09-13
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
View PDF6 Cites 0 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
At present, the extraction method of flavonoids generally adopts organic solvent extraction. Although the extraction rate of flavonoids is high, the safety is low and the steps are cumbersome, which is not suitable for large-scale production requirements.
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
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0028] A method for fast, green and efficient extraction of silk flavonoids, comprising the following steps:
[0029] (1) Crush the dried silkworm excrement and pass through a 50-mesh sieve;
[0030] (2) Take 120g of dried and crushed silkworm excrement powder, add 2400mL of ultrapure water at a water temperature of 45°C (the ratio of solid to liquid is 1g:20mL), and soak for 30 minutes. Put it into ultrasonic extraction for 70min, pour the filter residue and filtrate into the flash extractor for standby;
[0031] (3) Set up the flash extractor, turn on the switch, raise the knife head, place the solution in step (1) on the operating table, lower the knife head and place the knife head in the liquid surface 1cm away from the bottom of the beaker (the knife head should not be in contact with the bottom of the beaker) touch);
[0032] (4) Be careful not to adjust the gear suddenly in advance of the flash, and adjust the gear slowly to the required gear after the cutter head ro...
Embodiment 2
[0037] A method for fast, green and efficient extraction of silk flavonoids, comprising the following steps:
[0038]According to the steps of Example 1, only the dosage ratio of the pulverized silkworm excrement obtained in step (1) in step (2) and the aqueous solution with a water temperature of 45°C is replaced from 1g:20mL to 1g:25mL, 1g:30mL, 1g :35mL, 1g:40mL, the content of gained silk flavonoids is as follows figure 1 As shown, it is 3.54mg / g, 4.48mg / g, 4.08mg / g, 4.34mg / g in turn.
Embodiment 3
[0040] A method for fast, green and efficient extraction of silk flavonoids, comprising the following steps:
[0041] According to the steps of Example 1, only the ultrasonic extraction time in step (2) is replaced by 70min to 40min, 50min, 60min and 80min, the content of the obtained silk flavonoids is as follows figure 2 As shown, it is 4.00mg / g, 4.08mg / g, 4.28mg / g, 3.38mg / g in turn.
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 extraction of effective constituents of traditional Chinese medicine, and particularly discloses a fast, green and high-efficiency extraction method of silkworm excrement flavone and a detection method thereof. The extraction method comprises the following steps: collecting silkworm excrement and removing impurities, and obtaining silkworm excrement powder after drying andsmashing the silkworm excrement; by a method of combination of assistance of ultrasonic wave and flash extraction, extracting the silkworm excrement powder with water solution, concentrating and drying extracting solution, and determining content of flavone. In the extraction method provided by the invention, by the method of combination of ultrasonic extraction and flash extraction, compared with the conventional extraction method, damage to thermolabile constituents is avoided, and the extraction method provided by the invention has high yield, is green and environmental-friendly, and remarkably improves transfer rate of effective constituents. Compared with the optimized flavone matter ultrasonic extraction method, the extraction method provided by the invention improves content of flavone by 19.2%, extraction conditions are moderate, usage of all organic solvent is avoided, extractant is environmental-friendly, and the extraction method provided by the invention has the characteristics, such as low extraction cost, and so on; moreover, the waste silkworm excrement is reused, thus, the waste is turned into wealth, and a problem of environment pollution is solved greatly.
Description
technical field [0001] The invention relates to the extraction of active ingredients of traditional Chinese medicines, in particular to a method for rapidly, green and high-efficiency extraction of silk flavonoids and a detection method thereof. Background technique [0002] Silkworm excrement, also known as silkworm excrement, is the feces excreted by the larvae of the silkworm moth, Bombyx mori, and is a commonly used traditional Chinese medicinal material in clinical practice. Sweet and warm in nature, it can dispel wind and dampness, promote blood circulation, relieve pain, and sterilize. It is often used to treat rheumatic arthralgia, numbness, skin eczema itching, cholera, and abdominal pain. Studies have shown that silkworm excrement contains flavonoids, volatile oils, steroids, phenols and terpenes. my country's silkworm excrement resources are very rich, but most of them have not been effectively utilized. The full development and utilization of silkworm excrement ...
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