Method for producing oxidation resistant product from rosemary

A rosemary and anti-oxidation technology, which is applied in the direction of chemical instruments and methods, and compositions for inhibiting chemical changes, can solve the problems of high content of anti-oxidative active ingredients carnosic acid and carnosol, which are not suitable for application, etc. Achieve high antioxidant activity

Inactive Publication Date: 2009-04-08
CHINA AGRI UNIV
View PDF2 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method does not further separate and purify antioxidants, and the content of the main antioxidant active ing

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

[0016] 1. Crush 100.0 g of rosemary dry leaves and sieve, with a sieve aperture of 0.30 mm;

[0017] 2. Using the sieved rosemary dry powder as raw material, steam distillation was used for 3 hours to extract rosemary essential oil;

[0018] 3. The rosemary residue obtained after extracting the essential oil by steam distillation was filtered to remove the remaining water, weighed, and extracted 6 times with methanol solution, the ratio of liquid to material was 6:1 according to v / w, and the extraction time was 24 Hour;

[0019] 4. Filter the extract, evaporate under reduced pressure at 45°C and dry in vacuum to obtain the crude extract of rosemary antioxidant with antioxidant activity;

[0020] 5. The rosemary crude extract was subjected to macroporous resin DA 201 adsorption and three times of silica gel column chromatography, the eluent was a mixture of chloroform and n-hexane with a volume ratio of 3:1, and the fractions were collected and vacuum-dried to obtain a Rosema...

Embodiment 2

[0022] 1. Sieve after crushing 100.0 g of rosemary dry leaves, the aperture of the sieve is 0.45 mm;

[0023] 2. Using the sieved rosemary dry powder as raw material, steam distillation was used for 3 hours to extract rosemary essential oil;

[0024] 3. Filter the rosemary residue remaining in the flask after extracting the essential oil to remove the remaining water, weigh it, and then use methanol solution to extract it 6 times. The ratio of liquid to material is 6:1 according to v / w, and the total extraction time is 24 hours;

[0025] 4. Filter the extract, evaporate under reduced pressure at 45°C and dry in vacuum to obtain the crude extract of rosemary antioxidant with antioxidant activity;

[0026] 5. The above crude extract was subjected to macroporous resin H-1020 adsorption and silica gel column chromatography twice, the eluent was a mixture of petroleum ether and ethyl acetate with a volume ratio of 1:1, and the fractions were collected and dried in vacuo to obtain ...

Embodiment 3

[0028] 1. Crush 20.0 g of rosemary dry leaves and sieve, with a sieve aperture of 0.60 mm;

[0029] 2. Using the sieved rosemary dry powder as raw material, steam distillation was used for 2 hours to extract rosemary essential oil;

[0030] 3. Filter the rosemary residue obtained after extracting the essential oil by steam distillation to remove the remaining water, weigh it, and use petroleum ether solution to repeatedly extract 3 times, each extraction time is 4 hours, and the liquid-to-material ratio is according to v / w is 12:1, a total of 12 hours of leaching;

[0031] 4. Filter the extract, evaporate under reduced pressure at 40.0° C. and vacuum dry to obtain the crude anti-oxidant extract of rosemary with antioxidant activity;

[0032] 5. The above-mentioned crude extract was subjected to macroporous resin D-4020 adsorption and 3 times of silica gel column chromatography, the eluent was a solution of ethyl acetate and n-hexane with a volume ratio of 2:1, and the fracti...

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 preparing an oxidation resistance product from rosemary and belongs to the technical field of preparing an oxidation resistance product with high activity. The preparation steps include: the dry leaves of rosemary are cracked and screened; the essential oil of the rosemary is extracted by adopting a vapor distilling method; the residues obtained after extracting the essential oil are filtered for removing the remained water; then the same organic solvent is adopted for repeated leaching; a leaching liquid is filtered, decompress-vaporized and dried in vacuum for obtaining the coarse extract of the rosemary which contains the oxidation resistance active components; the coarse extract is absorbed by macroporous resins and chromatography is carried out on the coarse extract by a silica gel column; cut fractions are collected and dried in vacuum for obtaining the oxidation resistance product of rosemary. In the product prepared by the invention, the contents of the main oxidation resistance active components of sage acid and sage phenol are high; the content sum is larger than 50wt percent; moreover, the oxidation resistance activity of the product is high, thus being beneficial to industrial production and the application in the market.

Description

technical field [0001] The invention belongs to the technical field of preparation of high-activity antioxidant products, in particular to a method for preparing antioxidant products from rosemary. Background technique [0002] Rosemary (Rosmarinus officinalis L.) is a shrub of the genus Rosmarinus in the Labiatae family. It is native to Europe, North Africa and the Mediterranean coast. Now it is widely grown in Spain, France, Italy, Tunisia, Morocco and Turkey. The main planting areas in my country are Guizhou, Xinjiang, Yunnan, Guangxi and Hainan. The research on rosemary at home and abroad is mainly concentrated on the dry leaves and fresh leaves of rosemary, and the extraction and analysis of the essential oil components in the leaves is the focus of the research. Steam distillation is a classic method for extracting vanilla essential oil. At present, rosemary essential oil can be produced on a large scale by using this method in industry. However, the preparation of an...

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
IPC IPC(8): C09K15/34
Inventor 李全宏黄景荣
Owner CHINA AGRI UNIV
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