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Preparation method of rosemary extracts

A rosemary extract and rosemary technology are applied in the separation/purification of carboxylic acid compounds, steroids, essential oils/flavors, etc., and can solve the problem of reduced yield of active ingredients, excessive damage, and increased process complexity. It can improve the application properties, high utilization rate of raw materials, and high transfer rate.

Pending Publication Date: 2019-01-18
CHANGSHA LANGLIN BIOLOGY PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the process separates carnosic acid and ursolic acid, multiple and repeated treatments are used, which increases the complexity and production cost of the process.
Step (1) Directly add 10 times the volume of aqueous solution for distillation and oil recovery treatment, the damage to the content of carnosic acid and ursolic acid is relatively large, and the yield of active ingredients may decrease

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of rosemary extract of this embodiment includes the following steps:

[0030] (1) Break 100kg of dried rosemary raw material into 0.5-1cm length, put it in an extraction tank, pass the steam for 45 minutes, and the steam pressure should not exceed 0.1Mpa to obtain a mixture of water and rosemary essential oil, which is separated by oil and water Separate, get 1.46kg rosemary essential oil, leave the water and raw materials in the extraction tank;

[0031] (2) Then add an 80% ethanol solution with a volume concentration of 10 times the weight of the dried rosemary raw material in step (1) into the extraction tank of step (1), reflux and extract 3 times, the extraction time is 1.5 h, 1h, 1h, filter the extract quickly, and concentrate under reduced pressure (falling film) at 60-70°C for 30 min to obtain a concentrated solution, in which the ethanol concentration is 48%; the concentrated solution is cooled to room temperature by heat exchange (ursolic aci...

Embodiment 2

[0035] The preparation method of rosemary extract of this embodiment includes the following steps:

[0036] (1) Take 100kg of dried rosemary raw material, crush it into 0.5-1 cm length, put it in an extraction tank, pass the steam for 60min, the steam pressure does not exceed 0.1Mpa, get a mixture of water and rosemary essential oil, separate it from oil and water The device is allowed to stand and separate to obtain 1.53 kg of rosemary essential oil; the water and raw materials are left in the extraction tank;

[0037] (2) Then add an 80% ethanol solution with a volume concentration of 10 times the weight of the dried rosemary raw material in step (1) into the extraction tank of step (1), and extract with reflux for 3 times. The extraction time is respectively 1.5h, 1h, 1h, the extract is filtered by fast card, and concentrated under reduced pressure (falling film) at 60-70℃ for 30min, and the ethanol concentration of the concentrated solution is 51%. The concentrated solution wa...

Embodiment 3

[0041] The preparation method of rosemary extract of this embodiment includes the following steps:

[0042] (1) Take 100kg of dried rosemary raw material, crush it into 0.5-1 cm length, put it in an extraction tank, pass the steam for 30min, the steam pressure does not exceed 0.1Mpa, get a mixture of water and rosemary essential oil, separate it from oil and water The device is allowed to stand and separate to obtain 1.38 kg of rosemary essential oil; the water and raw materials are left in the extraction tank;

[0043] (2) Then add an 80% ethanol solution with a volume concentration of 10 times the weight of the dried rosemary raw material in step (1) into the extraction tank of step (1), reflux and extract 3 times, the extraction time is 1.5 h, 1h, 1h, the extract is quickly filtered, and concentrated under reduced pressure (falling film) at 60-70°C for 30 min, the ethanol concentration of the concentrated solution is 50.6%; the concentrated solution is cooled to room temperature...

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Abstract

The invention relates to a preparation method of rosemary extracts. The method comprises the following steps of (1) putting dried rosemary raw materials into an extraction tank; performing extractionto obtain rosemary essential oil; (2) adding an ethanol solution; performing back flow extraction, concentration, separation and drying to obtain carnosic acid, ursolic acid and rosmarinic acid products; (3) performing crushing, extraction, concentration and separation on the carnosic acid products to obtain oily products containing carnosic acid; (4) performing molecular distillation separation on the oily products containing carnosic acid to obtain rosemary essential oil and smell-removed carnosic acid oily products. The raw material utilization rate is high; the effective ingredient transfer rate is high; the industrialized production can be easily realized; the carnosic acid oily products prepared by the method have high anti-oxidization active ingredient content, basically have no rosemary smell, and have good market prospects are realized in aspects in edible grease, meat product fresh keeping and corrosion prevention.

Description

Technical field [0001] The invention relates to the technical field of deep processing of agricultural and sideline products, in particular to a method for preparing rosemary extract. Background technique [0002] Rosemary, the Latin scientific name (Rosmarinus officinalis L.), is a plant of the genus Lamiaceae Rosemary. It is native to the coast of the Mediterranean Sea. It was later introduced to China and planted in Hunan, Henan, Guizhou, Yunnan and other places. The literature "Research progress on the chemical components and pharmacological effects of rosemary[J].Guangzhou Chemical Industry, 2012, 40(11):43-44" summarizes the three major categories of rosemary, which mainly contain flavonoids, terpenes and essential oils. Chemical components, of which rosmarinic acid, carnosic acid, and carnosol all belong to the diterpenoids in the terpenes, and ursolic acid is the triterpenoids in the terpenes; the main pharmacological effects of rosemary are antibacterial, Anti-cancer, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/42C07C67/48C07J63/00C11B9/02C07C62/32C07C69/732C07C51/44
CPCC11B9/022C11B9/027C07C51/42C07C51/44C07C67/48C07J63/008C07C62/32C07C69/732
Inventor 曹慧璋易宇阳唐美玉贺玉婷赵迪
Owner CHANGSHA LANGLIN BIOLOGY PROD
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