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A kind of method extracting hydroxytyrosol from lilac

A technology of hydroxytyrosol and lilac, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry and other directions, can solve problems such as unfavorable industrial-scale production, and achieve the effects of facilitating industrial-scale production and reducing production costs

Active Publication Date: 2020-11-10
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method also involves the operation steps of strong acid and high temperature, which is not conducive to industrial scale production

Method used

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  • A kind of method extracting hydroxytyrosol from lilac
  • A kind of method extracting hydroxytyrosol from lilac
  • A kind of method extracting hydroxytyrosol from lilac

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070]The lilac diameter after natural air-drying is carried out pulverizing treatment, obtains the lilac powder that particle diameter is 20~40 mesh, weighs 10.0g lilac powder (by absolute dry weight) and puts into the round bottom flask, then press lilac powder The mass ratio to ethanol aqueous solution is 1:8, add ethanol aqueous solution with a volume percentage of 80%, reflux extraction in a water bath at 90°C for 2 hours, continue to repeat the extraction twice, combine the extracted materials, and filter to obtain The liquid material is used as the extraction liquid;

[0071] to OH - Type ion exchange resin (model is 201*7) carries out pretreatment, specifically adopts the ethanol aqueous solution that volume percent is 90% to OH - Type ion exchange resin was soaked for 24h, and the obtained OH - The type ion exchange resin is washed with distilled water; - Type ion exchange resin was soaked for 4h, and the obtained OH - The type ion exchange resin is washed with di...

Embodiment 2

[0078] The lilac diameter after natural air-drying is carried out pulverizing treatment, obtains particle diameter and is 20~40 mesh lilac powder, takes by weighing 100.0g lilac powder (in absolute dry mass) and puts into the round bottom flask, then press lilac powder The mass ratio to ethanol aqueous solution is 1:10, add ethanol aqueous solution with a volume percentage of 80%, reflux extraction in a 95°C water bath for 3.5 hours, continue to repeat the extraction twice, combine the extracted materials, filter, and The obtained liquid material is used as an extract;

[0079] to OH - Type ion exchange resin (model is 201*7) carries out pretreatment, specifically adopts the ethanol aqueous solution that volume percent is 90% to OH - Type ion exchange resin was soaked for 24h, and the obtained OH - The type ion exchange resin is washed with distilled water; - Type ion exchange resin was soaked for 4h, and the obtained OH - The type ion exchange resin is washed with distill...

Embodiment 3

[0087] The lilac diameter after natural air-drying is pulverized, and the lilac powder with a particle size of 20 to 40 meshes is obtained, and 1000.0 g of lilac powder (in terms of absolute dry mass) is weighed and put into a pilot test round bottom flask, and then press purple The mass ratio of clove powder and ethanol aqueous solution is 1:12, add ethanol aqueous solution with a volume percentage of 80%, reflux extraction in a water bath at 85°C for 4 hours, continue to repeat the extraction for 2 times, combine the extracted materials, filter, The obtained liquid material is used as an extract;

[0088] to OH - Type ion exchange resin (model is 201*7) carries out pretreatment, specifically adopts the ethanol aqueous solution that volume percent is 90% to OH - Type ion exchange resin was soaked for 24h, and the obtained OH - The type ion exchange resin is washed with distilled water; - Type ion exchange resin was soaked for 4h, and the obtained OH - The type ion exchang...

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Abstract

The invention provides a method for extracting hydroxytyrosol from syringa oblata. By means of hydrolytic in-situ extraction, ester bonds in oleuropein can be hydrolyzed totally and transformed into free hydroxytyrosol, so that content of hydroxytyrosol in extract liquor is increased, wherein OH-ion exchange resin serves as a catalyst to promote hydrolysis of oleuropein, and a chlorinated solventserves as an extracting agent to extract free hydroxytyrosol. Therefore, in the hydrolytic in-situ extraction process, hydrolysis of oleuropein and extraction of free hydroxytyrosol are completed simultaneously. Meanwhile, with adoption of the hydrolytic in-situ extraction, complicated two steps of operation for hydrolysis and extraction are avoided effectively, operation procedures and solvent dosage are reduced, production cost is low, and yield of hydroxytyrosol is high.

Description

technical field [0001] The invention relates to the technical field of compound extraction, in particular to a method for extracting hydroxytyrosol from lilac. Background technique [0002] Lilac is a deciduous shrub or small tree, often planted as an ornamental plant, with a wide geographical distribution, from Inner Mongolia in the north, to Yunnan in the south, to Heilongjiang in the east, to Sichuan and Tibet in the west, and has been widely distributed in China. It has been cultivated for many years and is also a commonly used medicinal material among the people. Lilac stems contain several antioxidant active compounds such as: syringin, oleuropein, and hydroxytyrosol. [0003] Hydroxytyrosol is a natural polyphenolic compound with a variety of biological and pharmacological activities, such as: it has a good effect on the treatment of cancer, cardiovascular disease, neurodegenerative disease, diabetes, inflammatory infection and anti-oxidation , especially its antiox...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C37/68C07C37/72C07C37/82C07C37/86C07C39/11
CPCC07C37/685C07C37/72C07C37/82C07C37/86C07C39/11
Inventor 马春慧刘守新李伟王梦茹夏宇李俊含罗沙
Owner NORTHEAST FORESTRY UNIVERSITY
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