Chlorogenic acid extracting and purifying process from sunflower seed dregs

A technology of sunflower meal and chlorogenic acid, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., to achieve the effect of improving extraction rate and good appearance and color

Inactive Publication Date: 2006-03-01
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Chlorogenic acid extracting and purifying process from sunflower seed dregs
  • Chlorogenic acid extracting and purifying process from sunflower seed dregs
  • Chlorogenic acid extracting and purifying process from sunflower seed dregs

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Experimental program
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Embodiment 1

[0028] Embodiment 1 Weigh 5 parts of 5 grams of sunflower meal, the chlorogenic acid content in the sunflower meal used is 3.13% (the same below), add 70% ethanol according to the ratio of material to liquid 1: 12, and adjust the pH of the solution to be 2.5, 4.5 respectively , 6.5, 8.5, 10.5, heated under reflux at 50°C for 3h, extracted once, there is a weighing error of 5g sample, take 50ul sample solution during measurement, use paper chromatography, and then use 10ml 50% methanol solution to dissolve chlorogenic acid, Therefore, the dilution factor is 200 (the same below),

[0029] Extract pH

Embodiment 2

[0031] Extraction temperature (℃)

Embodiment 3

[0033] solid-liquid ratio

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Abstract

The present invention belongs to the field of plant functional product extracting and purifying technology. The chlorogenic acid extracting and purifying process includes the steps of: extracting sunflower seed dregs with alcohol aqua to obtain alcohol aqua of chlorogenic acid, concentration to eliminate alcohol, acid precipitation to eliminate sunflower protein, extracting with ethyl acetate, separation, concentration to eliminate ethyl acetate and obtain coarse chlorogenic acid product in the content of about 70 %, and final purification with D101 macroporous resin to obtain chlorogenic acid product in the purity over 92 %. The present invention has the advantages of greatly raised chlorogenic acid extracting rate and high chlorogenic acid product purity.

Description

technical field [0001] The invention relates to a method for extracting and purifying chlorogenic acid, specifically, the invention relates to a method for extracting and purifying chlorogenic acid from sunflower meal, more specifically, the invention relates to solvent extraction, acid precipitation, water-soluble and The method of solvent-liquid-liquid extraction, concentration, extraction and purification of chlorogenic acid through D101 macroporous resin. It belongs to the technical field of extraction and purification of functional products in plants. Background technique [0002] Chlorogenic acid is a phenylpropanoid compound formed by plants during aerobic respiration, and has strong pharmacological activity. Studies have shown that it has pharmacological effects on the digestive system, blood system and reproductive system, and has a wide range of antibacterial and anti-inflammatory, choleretic, hemostasis and increased white blood cell counts. At the same time, ch...

Claims

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Application Information

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IPC IPC(8): C07C69/732C07C67/58
Inventor 裘爱泳徐德平杜延兵刘军海
Owner JIANGNAN UNIV
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