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A method for comprehensively extracting carnosol and ursolic acid

A carnosic acid carnosol and comprehensive extraction technology is applied in the field of comprehensive extraction of carnosic acid carnosol and ursolic acid, which can solve the problems of high carnosol content and low extract yield, etc. light odor effect

Active Publication Date: 2017-12-12
HENAN ZHONGDA HENGYUAN BIOTECH CO LTD
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Problems solved by technology

[0007] In order to overcome the problems of low extract yield and high carnosol content in existing methods for extracting rosemary extract, the present invention provides a method for comprehensively extracting carnosic acid carnosol and ursolic acid

Method used

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  • A method for comprehensively extracting carnosol and ursolic acid

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Embodiment 1

[0021] see figure 1 , the process is as follows:

[0022] 1) Organic solvent extraction. Take 100 grams of rosemary dry leaves, crush them and pass through a 40-mesh sieve, put them into a reaction kettle, add acetone according to the mass ratio of rosemary: acetone = 1:3 to 1:5, and extract at 40 to 45°C. Extract 1 hour each time, extract 2 times in total;

[0023] 2) Decolorization and filtration. Add an appropriate amount of activated carbon to the extract, stir for 30 minutes, and pass through a 500-mesh filter cloth;

[0024] 3) Concentrate under reduced pressure. The filtrate was decompressed and concentrated to dryness;

[0025] 4) Reconstitute and filter with ethanol. According to the mass ratio of rosemary: ethanol = 1:3 ~ 1:5, add 70 ~ 80% ethanol to redissolve, stir for 30 minutes, filter, and dry the filter residue to obtain ursolic acid with a content of 30 ~ 40%. The yield rate is 10-11%;

[0026] 5) Concentration under reduced pressure: Concentrate the f...

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Abstract

The invention discloses a method for comprehensive extraction of carnosic acid, carnosol and ursolic acid.According to the method, rosemary flowers or leaves are used as raw materials, an organic solvent is adopted for extraction, the content of obtained rosemary extract is 40-45%, and the ratio of the content of carnosic acid to the content of carnosol in the rosemary extract is 4:1 to 6:1.The method comprises the steps of extraction with the organic solvent, decoloration and filtration, vacuum concentration, ethyl alcohol redissolution and filtration and vacuum concentration.By means of the method, the yield of the rosemary extract can be greatly increased, the ratio of the content of carnosic acid to the content of carnosol in the extract is increased, the content of carnosol in the extract is reduced, and the overall oxidation resistance of the extract is enhanced.

Description

technical field [0001] The invention belongs to the technical field of plant component extraction, and in particular relates to a method for comprehensively extracting carnosol and ursolic acid. Background technique [0002] Rosemary, Lamiaceae shrub. Antioxidants with excellent antioxidant properties, rosemary essential oil and ursolic acid can be extracted from the flowers and leaves of rosemary. Rosemary is an antioxidant, widely used in medicine, fried food, oil-rich food and various oils and fats; Industrial Products. Bearberry has various biological effects such as sedative, anti-inflammatory, antibacterial, anti-diabetic, anti-ulcer, lowering blood sugar, etc., and also has obvious antioxidant function, so it is widely used as a raw material for medicine and cosmetics. [0003] The main function of rosemary is anti-oxidation. The research results of the national 863 plan project undertaken by Tianjin University of Science and Technology, No. 2007AA100401 show that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C51/42C07C62/32C07D493/08C07J63/00
CPCC07C51/42C07D493/08C07J63/008C07C62/32
Inventor 裴会鹏谷素静文雁君李林正章文晋潘天义
Owner HENAN ZHONGDA HENGYUAN BIOTECH CO LTD
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