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Comprehensive extraction method of origanum vulgare

A technology of comprehensive extraction and oregano, applied in chemical instruments and methods, pharmaceutical formulations, steroids, etc., can solve the problems of harsh conditions, difficult to achieve large-scale production, large energy consumption of rosmarinic acid, etc. The effect of high efficiency, low equipment performance requirements, and easy large-scale production

Active Publication Date: 2020-08-25
HUNAN NUSTREETCARAX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the methods for extracting rosmarinic acid from plants containing rosmarinic acid have problems such as high energy consumption, harsh conditions, and difficulty in large-scale production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A comprehensive extraction method of oregano, comprising the following steps:

[0034] (1) Take freshly collected oregano, use a screening machine to screen and remove impurities such as mud clods and rotten leaves, take 50kg as a raw material, and use a fully automatic cutting machine to cut the oregano into about 3-5 cm in length. The oregano is sent to the cleaning machine for 20 minutes, and the dryer is dried for 20 minutes; after draining, it is sent to the box-type airtight dryer for drying and dehydration. The temperature of drying and dehydration is 65 ° C, and the time is 4 hours. The water vapor is condensed into condensed water containing oregano essential oil through a closed condensed water recovery device, and the distillate is obtained;

[0035] (2) Add its weight 0.01% sodium chloride in the distillate; Then concentrate through ultrafiltration membrane filtration, nanofiltration membrane filtration and reverse osmosis concentration steps, the molecular ...

Embodiment 2

[0041](1) Take freshly collected oregano, use a screening machine to screen and remove impurities such as mud clods and rotten leaves, take 50kg as a raw material, and use a fully automatic cutting machine to cut the oregano into about 3-5 cm in length. The oregano is sent to the washing machine for 25 minutes, and the dryer is dried for 25 minutes; after draining, it is sent to the box-type airtight dryer for drying and dehydration. The temperature of drying and dehydration is 70 ° C, and the time is 4 hours. The water vapor is condensed into condensed water containing oregano essential oil through a closed condensed water recovery device, and the distillate is obtained;

[0042] (2) Add its weight 0.01% sodium chloride in the distillate; Then concentrate through ultrafiltration membrane filtration, nanofiltration membrane filtration and reverse osmosis concentration steps, the molecular weight cut-off of ultrafiltration membrane is 1000 Daltons, nanofiltration The molecular ...

Embodiment 3

[0048] (1) Take freshly collected oregano, use a screening machine to screen and remove impurities such as mud clods and rotten leaves, take 50kg as a raw material, and use a fully automatic cutting machine to cut the oregano into about 3-5 cm in length. Send the oregano to the washing machine for cleaning for 30 minutes, and the drying machine to dry it for 30 minutes; after draining, send it to the box-type airtight dryer for drying and dehydration. The temperature of drying and dehydration is 75 ° C, and the time is 3 hours. The water vapor is condensed into condensed water containing oregano essential oil through a closed condensed water recovery device, and the distillate is obtained;

[0049] (2) Add its weight 0.02% sodium chloride in the distillate; Then concentrate through ultrafiltration membrane filtration, nanofiltration membrane filtration and reverse osmosis concentration steps, the molecular weight cut-off of ultrafiltration membrane is 1000 Daltons, nanofiltrati...

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Abstract

The invention discloses a comprehensive extraction method of origanum vulgare, which comprises the following steps: taking fresh origanum vulgare, screening to obtain a raw material, cutting off the raw material, performing washing, drying and dehydrating, and collecting distillate; adding inorganic salt into the distillate, and then sequentially carrying out ultrafiltration membrane filtration, nanofiltration membrane filtration and reverse osmosis concentration to obtain a concentrated solution and a permeate solution, the concentrated solution being origanum oil, and the permeate solution being origanum refined dew; crushing and sieving the dried and dehydrated origanum vulgare to obtain origanum vulgare powder; carrying out continuous countercurrent extraction on the origanum vulgare powder to obtain an origanum vulgare extracting solution; adding an antioxidant into the origanum vulgare extracting solution, uniformly stirring, standing, and centrifugally separating to obtain a supernatant and a centrifugal precipitate; washing and drying the centrifugal precipitate to obtain ursolic acid; and filtering the supernatant, purifying the supernatant with chromatographic resin, andperforming decolorizing, recrystallizing, and drying to obtain rosmarinic acid. The extraction method provided by the invention is high in raw material utilization rate, simple and convenient to separate, low in equipment performance requirement and easy for large-scale production.

Description

technical field [0001] The invention relates to the field of extraction of active ingredients of natural products, and more specifically, relates to a comprehensive extraction method of oregano. Background technique [0002] Origanum vulgare (scientific name: Origanum vulgare L.) belongs to Lamiaceae, and Origanum is a perennial semi-shrub or herbaceous plant, aromatic; oblique rhizomes, woody. Stems up to 60 cm high, quadrangular, often without leaves near the base. Oregano contains a variety of chemical components, such as oregano oil, rosmarinic acid, etc. It is pungent, cool in nature, and non-toxic. The whole plant can extract aromatic oil, and can also be used as a herb for medicine, and can also be used as a honey plant. It has the effects of clearing away heat and relieving the exterior, regulating qi and removing dampness, diuresis and swelling. [0003] At present, the research on oregano is mainly based on the utilization of single components such as oregano oil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/732C07C67/48C07J63/00C07C67/56A61K36/53C11B9/02
CPCC07C67/48C07C67/56C07J63/008A61K36/53C11B9/025C07C69/732Y02P10/20
Inventor 张宝堂蒋乐文
Owner HUNAN NUSTREETCARAX
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