Method for extracting essential oil from peony flowers

A technology of peony flower and peony petals, which is applied in the direction of essential oil/fragrance, fat production, etc., can solve the problems of affecting petals, poor interface affinity, allergies, etc., and achieve the effect of shortening the extraction time, shortening the extraction time, and improving the extraction rate

Inactive Publication Date: 2015-07-22
芜湖市丹洋现代农业科技发展有限公司
View PDF3 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional methods for extracting essential oils from peony flowers are mostly solution extraction and single solution extraction. For fresh petals, due to the poor interface affinity between the water phase and the non-polar organic solvent, the extraction effect is very low. It is not good. In addition, this method will affect the unstable components in the petals, resulting in a difference between the aroma and the fragrance of the flowers. Moreover, there will be residual peony pollen in the extracted essential oil, which will easily cause people who are allergic to peony pollen to be sensitive to peony. flower essential oil allergy

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

Embodiment 1

[0018] A method for extracting essential oil from peony, comprising the following steps:

[0019] (1) Pick fresh peony petals, add salt according to the weight ratio of peony petals:salt is 1:0.2 to marinate, pickling time is 5 days, then according to the weight ratio of peony petals:distilled water is 1:3 Add water to break the peony petals;

[0020] (2) Extraction: add the purslane of peony petal weight 1% in the product of step (1), 30-60 degree sherwood oil of 3%, adopt probe type ultrasonic generator to carry out ultrasonic extraction 30 minutes, carry out after extraction finishes Filtrate, collect the filtrate, and add an ethanol solution with a mass concentration of 80% to the obtained filter residue, repeat the above-mentioned ultrasonic extraction and filtration operation twice, and combine all the filtrates;

[0021] (3) The mixed solution obtained in step (2) is separated with a centrifuge at 5000 rpm, and the supernatant is taken, and the organic solvent is remov...

Embodiment 2

[0023] A method for extracting essential oil from peony, comprising the following steps:

[0024] (1) Pick fresh peony petals, add salt according to the weight ratio of peony petals:salt is 1:0.3 for pickling, the pickling time is 3 days, then according to the weight ratio of peony petals:distilled water is 1:5 Add water to break the peony petals;

[0025] (2) Extraction: add the purslane of peony petal weight 3% in the product of step (1), 5% 30-60 degree sherwood oil, adopt probe type ultrasonic generator to carry out ultrasonic extraction 50 minutes, carry out after extraction finishes Filtrate, collect the filtrate, and add an ethanol solution with a mass concentration of 90% to the obtained filter residue, repeat the above-mentioned ultrasonic extraction and filtration operation twice, and combine all the filtrates;

[0026] (3) The mixed solution obtained in step (2) is separated with a centrifuge at 6000 rpm, the supernatant is taken, and the organic solvent is removed...

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

No PUM Login to view more

Abstract

The invention discloses a method for extracting essential oil from peony flowers. The method comprises the following steps: (1) picking fresh peony petals, adding salt which is 20% to 30% of the peony petals by weight for 3-5 days' pickling; adding distilled water which is 3 to 5 times of the peony petals by weight for crushing of the peony petals; (2) extraction: adding purslane and an extraction agent which are respectively 1-3% and 3-5% of the peony petals by weight; adopting a probe-type ultrasonic generator for 30-50 minutes' ultrasonic extraction; carrying out filtering; collecting the filtrate; adding an ethyl alcohol solution with the mass concentration of 80-90% into the obtained filter residue; repeating ultrasonic extraction and filtration for two times; combining all the filtrates; (3) conducting separation on the mixed liquor with a centrifuge at 5000-6000 revolutions per minute; taking a supernatant; carrying out decompressing and removing of an organic solvent under a thermostatic water-bath condition to obtain the essential oil. The method provided by the invention has the advantages that the extracting time is short, the extraction efficiency is high, the situation that the extracted essential oil contains residual peony pollen is avoided to realize the hypoallergenic function, and reduce the harm to users of allergic constitution.

Description

technical field [0001] The invention relates to the technical field of peony deep processing, in particular to a method for extracting essential oil from peony flowers. Background technique [0002] Peony is not only a fine product among ornamental flowers, but also a traditional good medicine. Because peony blooms once a year, the flowering period is only one week, and the petals are delicate and easy to mold after harvesting. Palmitic acid, linoleic acid and linolenic acid are the main types. Unsaturated fatty acids have the effect of lowering blood fat and preventing arteriosclerosis. Peony also contains protein, polyphenols, potassium, calcium, magnesium, phosphorus and other elements, as well as vitamin B and Carotenoids are a kind of natural nutrition and health substances. [0003] The traditional methods for extracting essential oils from peony flowers are mostly solution extraction and single solution extraction. For fresh petals, due to the poor interface affinity...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
CPCC11B9/022C11B9/025
Inventor 徐伟
Owner 芜湖市丹洋现代农业科技发展有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap