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A method for extracting bamboo leaf flavonoids from bamboo leaves

A technology for bamboo leaf flavonoids and bamboo leaves is applied in the field of extracting bamboo leaf flavonoids, which can solve the problems of incomplete extraction of target products and high extraction temperature, and achieve the effects of good promotion and application prospects, high extraction rate and reduction of environmental pollution.

Active Publication Date: 2019-03-19
浙江圣氏生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of adopting this method, the amount of solvent used is small and fast, but there are problems such as incomplete extraction of the target product and high extraction temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Extract bamboo leaf flavonoids:

[0035] Bamboo leaves are dried and pulverized, passed through a 80-mesh sieve, added water and stirred for 60 minutes according to a material-to-liquid ratio of 1:19, and ultrasonically dispersed for 20 minutes to obtain an aqueous dispersion with a solid content of 5%; under the condition of a pressure of 60 MPa, the The aqueous dispersion was subjected to high-pressure homogenization treatment for 60 minutes to obtain a homogenate; the homogenate was centrifuged at 3500r / min for 20 minutes to separate and obtain the upper liquid; the amount of total flavonoids before and after extraction was measured, and the total flavonoids were calculated. The extraction rate is 65.4%.

[0036] (2) Preparation of magnetic adsorbent:

[0037] (2.1) Continuously feed argon into the reactor, add polyethylene glycol (molecular weight 1000) of 15 parts by weight and sodium lauryl sulfate of 1.5 parts by weight in the reactor and mix, while stirring v...

Embodiment 2

[0045] (1) Extract bamboo leaf flavonoids:

[0046] Bamboo leaves are dried and pulverized, passed through a 100-mesh sieve, according to the material-liquid ratio of 1:9, added water and stirred for 60 minutes, and ultrasonically dispersed for 20 minutes to obtain an aqueous dispersion with a solid content of 10%; under the condition of a pressure of 80MPa, the The aqueous dispersion was subjected to high-pressure homogenization treatment for 30 minutes to obtain a homogenate; the homogenate was centrifuged at 4000r / min for 20 minutes to separate and obtain the upper liquid; the amount of total flavonoids before and after extraction was measured, and the total flavonoids were calculated. The extraction rate is 66.8%.

[0047] (2) Preparation of magnetic adsorbent:

[0048] (2.1) Continuously feed argon into the reactor, add polyethylene glycol (molecular weight 1000) of 15 parts by weight and sodium lauryl sulfate of 1.4 parts by weight in the reactor and mix, while stirring...

Embodiment 3

[0056] (1) Extract bamboo leaf flavonoids:

[0057] Bamboo leaves are dried and pulverized, passed through a 60-mesh sieve, added water and stirred for 30 minutes according to the material-to-liquid ratio of 1:9, and ultrasonically dispersed for 10 minutes to obtain an aqueous dispersion with a solid content of 10%; under the condition of a pressure of 100 MPa, the The aqueous dispersion was subjected to high-pressure homogenization treatment for 20 minutes to obtain a homogenate; the homogenate was centrifuged at 5000r / min for 10 minutes to separate and obtain the upper liquid; the total flavonoids before and after extraction were measured, and the total flavonoids were calculated. The extraction rate is 64.3%.

[0058] (2) Preparation of magnetic adsorbent:

[0059] (2.1) Continuously feed argon into the reactor, 30 parts by weight of polyethylene glycol (molecular weight 2000) and sodium lauryl sulfate of 1.4 parts by weight are added to the reactor and mixed, while vigoro...

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Abstract

The invention discloses a method for extracting bamboo leaf flavonoid from bamboo leaves. The method comprises the steps that crude extraction is obtained by extracting the bamboo leaf flavoinoid from the bamboo leaves through a high-pressure homogenization method, the bamboo leaf flavoinoid in the crude extraction is selectively adsorbed through a prepared amidate magnetic adsorbent, and therefore separation of the bamboo leaf flavoinoid is achieved easily and efficiently. The method for extracting the bamboo leaf flavonoid from the bamboo leaves is friendly to environment, high in extraction efficiency, good in product quality, short in production cycle, convenient to operate, low in cost and suitable for industrial production.

Description

technical field [0001] The invention relates to the field of extracting plant active components, in particular to a method for extracting bamboo leaf flavonoids from bamboo leaves. Background technique [0002] Bamboo resources are widely distributed in my country, and there are extensive researches on the utilization of bamboo. Bamboo shoots, bamboo poles, and bamboo leaves are all sold in the market. Bamboo shoots have been mainly used as food for a long time, bamboo poles and related products have a long history of use in my country, and bamboo leaves have long been concerned because of their very high medicinal and edible value. The main functional component of bamboo leaf extract is flavonoid glycoside, which is an active ingredient in the antioxidant effect of bamboo leaf extract. The higher the content of flavonoid glycoside, the stronger the antioxidant capacity. Bamboo leaf flavonoid glycosides are mostly carbon glycoside flavones, whose glycosyl is connected to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/9794A61K36/899A23L33/105A61P39/06
CPCA23V2002/00A61K8/97A61K36/899A61K2236/331A61K2236/53A61K2800/82A23V2200/30A23V2250/21
Inventor 高亮胡林福
Owner 浙江圣氏生物科技有限公司