Abelmoschus manihot flower extract and preparation method thereof

A technology of hollyhock flower and extract, which is applied in the field of hollyhock flower extract and its preparation, can solve the problems of poor hygroscopicity, environmental pollution, and low content of active ingredients, and achieve the effects of avoiding the use of organic solvents, not easy to absorb moisture, and easy to operate

Inactive Publication Date: 2020-06-19
宁波杰顺生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the technical defects of poor hygroscopicity of hollyhock flower extract, the need to use a variety of solvents for extraction, pollute the environment, and it is particularly easy to cause excessive solvent residues in the extract and relatively low content of active ingredients. Extract of hollyhock flower and preparation method thereof

Method used

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  • Abelmoschus manihot flower extract and preparation method thereof
  • Abelmoschus manihot flower extract and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A preparation method of hollyhock flower extract, comprising the steps of:

[0050] (1) Extraction: Weigh 1000g of raw material hollyhock flowers, add 12 times the amount of 60% ethanol to reflux and extract once, each time for 1.5h;

[0051] (2) Filtration: filter with 100 mesh filter cloth to get the filtrate;

[0052] (3) Concentration: Concentrate under reduced pressure at -0.06MPa and 65°C to have no alcohol smell, and recover ethanol for reuse;

[0053] (4) Water sinking: add 1 volume of water to the concentrated solution obtained in the 3 steps, and water sink for 6 hours;

[0054] (5) Filtrate again: filter with 200 mesh filter cloth to obtain the supernatant;

[0055] (6) Adsorption: pass the supernatant obtained in step 5 through 800mL LK37 resin at a flow rate of 2BV / h;

[0056] (7) Miscellaneous washing: 2BV washing miscellaneous;

[0057] (8) Desorption: 1000mL 65% ethanol desorption, the desorption flow rate is 1BV / h;

[0058] (9) Concentration: Conce...

Embodiment 2

[0061] A preparation method of hollyhock flower extract, comprising the steps of:

[0062] (1) Extraction: Weigh 1000g of raw material hollyhock flowers, add 18 times the amount of 80% ethanol to reflux and extract 3 times, each time for 3h;

[0063] (2) Filtration: filter with 300 mesh filter cloth to get the filtrate;

[0064] (3) Concentration: -0.1MPa, concentrated under reduced pressure at 40°C to no alcohol smell, and recovered ethanol for reuse;

[0065](4) Water sinking: add 3 times the volume of water to the concentrated solution obtained in the 3 steps, and water sink for 18 hours;

[0066] (5) Filtrate again: 300 mesh filter cloths are filtered to obtain the supernatant;

[0067] (6) Adsorption: Pass the supernatant obtained in step 5 through 1200mL DM21 resin at a flow rate of 3BV / h;

[0068] (7) Miscellaneous washing: 3BV washing miscellaneous;

[0069] (8) Desorption: use 2000mL75% ethanol for desorption, and the desorption flow rate is 1.5BV / h;

[0070] (9)...

Embodiment 3

[0073] A preparation method of hollyhock flower extract, comprising the steps of:

[0074] (1) Extraction: Weigh 1000 g of raw material hollyhock flowers, add 15 times the amount of 70% ethanol to reflux and extract twice, each time for 2 hours;

[0075] (2) Filtration: filter with 200 mesh filter cloth to get the filtrate;

[0076] (3) Concentration: -0.08MPa, at 50°C, concentrate under reduced pressure to have no alcohol smell, and recover ethanol for reuse;

[0077] (4) Water sinking: Add 2 times the volume of water to the concentrated solution obtained in the 3rd step, and sink in water for 12 hours;

[0078] (5) Filtrate again: 400 mesh filter cloths filter, promptly obtain supernatant;

[0079] (6) Adsorption: Pass the supernatant obtained in step 5 through 1000mL D101 resin at a flow rate of 2.5BV / h;

[0080] (7) Miscellaneous washing: 2.5BV water washing miscellaneous;

[0081] (8) Desorption: use 1500mL70% ethanol for desorption, and the desorption flow rate is 1....

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Abstract

The invention discloses an abelmoschus manihot flower extract and a preparation method thereof. The preparation method comprises the following steps: (1) extraction: a step of weighing a raw material,namely abelmoschus manihot flowers, and adding ethanol with a concentration of 60-80% for reflux extraction; (2) primary filtering: a step of carrying out filtering so as to obtain a filtrate; (3) concentration: a step of concentrating the filtrate under reduced pressure until no alcohol smell exists so as to obtain a concentrated solution a, and recovering the ethanol; (4) water precipitation: astep of adding water into the concentrated solution a for water precipitation; (5) secondary filtering: a step of carrying out filtering so as to obtain a supernate; (6) adsorption: a step of adsorbing the supernate through macroporous resin; (7) impurity washing: a step of washing impurities with water; (8) desorbing: a step of carrying out desorbing with ethanol with a concentration of 65-75% so as to obtain a desorption solution; (9) concentration: a step of concentrating the desorption solution under reduced pressure until the baume degree is 10-20 so as to obtain a concentrated solutionb; and (10) drying: a step of transferring the concentrated solution b to a spraying procedure for spraying so as to obtain a product. The content of hyperoside in the abelmoschus manihot flower extract provided by the invention is larger than or equal to 15%; and the hygroscopicity of the abelmoschus manihot flower extract is good. The preparation process provided by the invention is safer, highly-efficient and environmentally-friendly.

Description

technical field [0001] The invention relates to the technical field of plant extraction, in particular to a marshmallow flower extract and a preparation method thereof. Background technique [0002] Hollyhock is an annual or perennial herb whose flower is the dry corolla of Abelmoschus manihot (L.) of Malvaceae. Nature and flavor are sweet, cold, slippery, non-toxic, have the effect of clearing away damp-heat, anti-inflammatory and detoxification, and take it orally to treat five stranguria, edema, nephritis; [0003] Hollyhock flower mainly contains compounds such as flavonoids, reducing sugars, tannins and long-chain hydrocarbons, such as quercetin-3-robinobioside, quercetin-3-glucoside, etc. -3-glucoside), hyperin (hyperin), myricetin (myricetin) and quercetin (quercetin), etc. The hollyhock flower was first recorded in "Jiayou Materia Medica", which is widely distributed and rich in resources. [0004] "Compendium of Materia Medica" records: the smell of its flowers i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/185A61K133/00
CPCA61K36/185A61K2236/333A61K2236/51A61K2236/53A61K2236/55
Inventor 季进军
Owner 宁波杰顺生物科技有限公司
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