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Method for extracting and purifying edible ginkgo fruit flavanol

A technology for fruit flavanols and ginkgo biloba, which is applied in the field of plant extraction, can solve problems such as low utilization rate of ginkgo biloba powder, and achieve the effects of good product color, cost reduction and simple process.

Inactive Publication Date: 2019-05-21
陕西卓力时代人力资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the existing problem of low utilization rate of ginkgo powder after supercritical extraction of ginkgo oil, the present invention provides a preparation method for producing ginkgo extract from ginkgo powder residue, which is not only better than traditional methods for ginkgo extract It saves the cost of raw materials, and the yield is higher than that of the traditional method, and the economic benefits are more prominent

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0044] This specific embodiment produces the preparation method of Ginkgo biloba extract from Ginkgo powder residue: Get 10 kilograms of Ginkgo powder, add 5 times of amount 70% acrylic acid and reflux extract 2 times, each time 2 hours, extracting temperature 45 ℃, extracting solution passes through pump 30 Mesh filter bag is filtered to obtain acrylic acid extraction supernatant, after extracting supernatant at temperature 65 ℃, vacuum degree 0.06MPa under reduced pressure recovery acrylic acid, after concentrating, be concentrated to the thick extract that specific gravity is 15 Pomi degrees (50 ℃ of measuring); The thick extract is spray-dried, the spray air inlet temperature is 170°C, and the air outlet temperature is 70°C to obtain 1.0 kg of extract powder; the extract powder is crushed, passed through a 80-mesh sieve, mixed, and packaged to obtain Ginkgo biloba extract The yield is 12.0%, and the color and flavor are good.

Embodiment 2

[0046] This specific embodiment produces the preparation method of Ginkgo biloba extract from Ginkgo powder residue: Get 10 kilograms of Ginkgo powder, add 8 times the amount of 50% acrylic acid to reflux and extract 2 times, each time for 3 hours, the extraction temperature is 65 ° C, and the extract is pumped through 30 Mesh filter bag is filtered to obtain acrylic acid extraction supernatant, and after extracting supernatant at temperature 65 ℃, vacuum 0.08MPa under reduced pressure recovery acrylic acid, concentrate, be concentrated to the thick extract that specific gravity is 20 Pomi degrees (50 ℃ of measurement); The thick extract is spray-dried, the spray air inlet temperature is 180°C, and the air outlet temperature is 75°C to obtain 1.5 kg of extract powder; the extract powder is crushed, passed through a 80-mesh sieve, mixed, and packaged to obtain Ginkgo biloba extract The yield is 15.0%, and the color and flavor are good.

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Abstract

The invention belongs to the technical field of plant extraction, in particular to a method for extracting and purifying edible ginkgo fruit flavanol. The method comprises the following steps: (1) rawmaterial processing: after extracting the ginkgo oil by supercritical CO2, the ginkgo powder residue is put into an extraction tank; (2) acrylic extraction: 30-70% of acrylic acid is used to extractthe ginkgo powder residue for two times by heating and refluxing, and two extraction liquids are combined to obtain an acrylic acid extract; (3) solid-liquid separation: the acrylic acid extract is separated by filtration to prepare acrylic acid extraction clear liquid; and (4) concentration: the acrylic acid extraction clear liquid is subjected to vacuum recovery of acrylic acid, and then concentrated to obtain a thick extract; and the material is spray dried, pulverized, and mixed to prepare extract powder. Further, the present invention provides an extract prepared by the above-described preparation method, and the ginkgo extract is a mixture of ginkgo flavone and polyphenol. The ginkgo extraction process of the invention not only saves the raw material cost by extracting the ginkgo extract from the ginkgo with better quality than a traditional method, but also has higher yield than the traditional method, and the economic benefit is more prominent.

Description

technical field [0001] The invention belongs to the technical field of plant extraction, and in particular relates to an extraction and purification process of edible ginkgo fruit flavanols. Background technique [0002] Eating ginkgo fruit can inhibit bacteria and kill bacteria, relieve diseases and coughs, resist waterlogging and insect pests, stop turbidity and lower serum cholesterol. In addition, ginkgo can reduce the level of lipid peroxidation, reduce freckles, moisturize the skin, and beautiful appearance. The flavonoid glycosides and flavonols in Ginkgo biloba are free radical scavengers, which can protect dermal cells, improve blood circulation, and prevent cells from being oxidized to produce wrinkles. Ginkgo biloba is one of the herbs with anti-active gene ability. Ginkgo biloba is effective in protecting lipids (components of cell membranes) from free radical damage. [0003] At present, ginkgo can be used to extract ginkgo oil, but most of the ginkgo powder d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/16A61K131/00
Inventor 程淑清牛清玲
Owner 陕西卓力时代人力资源有限公司
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