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Preparation method of globe artichoke extract

A technology of artichoke extract and extract solution, which is applied in the field of preparation of artichoke extract, and can solve problems such as restricting the development of artichoke and waste of artichoke raw materials

Active Publication Date: 2021-03-12
CHANGSHA LANGLIN BIOLOGY PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] To sum up, in common techniques, chlorogenic acid, catecharin and luteolin are not separated and extracted at the same time; the extraction and utilization of artichoke is limited to one or the other of chlorogenic acid, catecharin and luteolin. Two kinds, this has caused the waste of artichoke raw material, has also restricted the further development of artichoke

Method used

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  • Preparation method of globe artichoke extract
  • Preparation method of globe artichoke extract
  • Preparation method of globe artichoke extract

Examples

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Embodiment 1

[0086] This embodiment provides a preparation method of Korean leaf extract, specifically comprising the following steps:

[0087] S1. Get 1000g of dried artichoke leaves and pulverize them, and get 1000g of 10 mesh sieves;

[0088] S2. At 40°C, use 8000ml of acidic ethanol aqueous solution (ethanol volume concentration is 50%, pH=5) continuous countercurrent ultrasonic extraction step S1 obtained 1000g undersize for 30min, wherein the ultrasonic power is 200W, the frequency is 25kHz, after extraction Filter to obtain the extract;

[0089] S3. The extract is passed through D101 type macroporous non-polar resin at a flow rate of 1BV / h, and is eluted with acidic water of pH=5.5 and ethanol aqueous solution with a volume concentration of 70% at a flow rate of 1BV / h , collecting acidic water eluent, and ethanol water eluent;

[0090] S4. The acidic water eluent is passed through the AB-8 type macroporous non-polar resin with a flow rate of 2BV / h, and is eluted with pure water an...

Embodiment 2

[0098] This embodiment provides a preparation method of Korean leaf extract, the difference between the specific steps and Example 1 is:

[0099] In step S2, continuous countercurrent ultrasonic extraction is performed at 50°C.

Embodiment 3

[0101] This embodiment provides a preparation method of Korean leaf extract, the difference between the specific steps and Example 1 is:

[0102] In step S2, continuous countercurrent ultrasonic extraction is carried out at 60°C.

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Abstract

The invention provides a preparation method of globe artichoke extract. According to the method, chlorogenic acid is separated from a mixed system of cynarin and luteolin from globe artichoke, then the cynarin and the luteolin are separated through simple pH adjustment, and finally, the chlorogenic acid, the cynarin and the luteolin are separated and extracted at the same time. Effective components in globe artichoke are fully utilized, the comprehensive development level of globe artichoke is improved, and good economic and social benefits are achieved. The extraction rate of chlorogenic acidis greater than or equal to 92.31%, the purity is greater than or equal to 93.05%, the extraction rate of cynarin is greater than or equal to 83.25%, the purity is greater than or equal to 90.10%, the extraction rate of luteolin is greater than or equal to 84.98%, and the purity is greater than or equal to 94.25%.

Description

technical field [0001] The invention belongs to the field of plant extraction, and in particular relates to a preparation method of artichoke extract. Background technique [0002] As a perennial herb, artichoke has been used as a liver protection and treatment for indigestion as early as the ancient Roman period. In recent years, the planting area of ​​artichoke is also expanding. The edible parts of the artichoke are mainly unopened flower buds, receptacles and bud bases, while the leaves as a by-product are discarded or used as fodder. [0003] Studies have shown that artichokes and even often discarded artichoke leaves contain a large amount of phenolic compounds and bitter components with medicinal value. For example, each gram of artichoke leaves contains 0.35-18.34mg Luteolin and 0.06-22.6 mg of catecharin. Among them, chlorogenic acid has antibacterial, anti-inflammatory, choleretic, diuretic, lipid-lowering, blood pressure-lowering, anti-oxidation, anti-tumor effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C67/48C07C67/52C07C67/56C07C69/732C07D307/93C07D311/30C07D311/40
CPCC07C67/48C07C67/52C07C67/56C07D307/93C07D311/30C07D311/40C07C69/732
Inventor 唐美玉曹慧璋易宇阳谭旭斌黎震宇
Owner CHANGSHA LANGLIN BIOLOGY PROD
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