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Process for producing mulberry leaf polyphenol, microcapsule and uses thereof

A technology of microcapsules and mulberry leaves, applied in microcapsules, applications, food preparation, etc., can solve the problems of low bioavailability, poor appearance and quality changes, etc., and achieve high added value, short extraction time, and low temperature effects

Active Publication Date: 2009-05-13
SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are many adverse changes in appearance quality, and the bioavailability of catechins and other substances in mulberry leaf polyphenols is not high in an unprotected state.

Method used

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  • Process for producing mulberry leaf polyphenol, microcapsule and uses thereof
  • Process for producing mulberry leaf polyphenol, microcapsule and uses thereof
  • Process for producing mulberry leaf polyphenol, microcapsule and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Get mulberry leaf powder, add its volume concentration of 8 times of weight and be 60% ethanol phosphoric acid solution, adjust pH to be 3, temperature is 45 ℃, ultrasonic-microwave cooperative extraction 2 times, adjust ultrasonic frequency 30kHz, microwave power is 50W , combined the extracts, filtered, and concentrated to 1 / 10 of the original volume of the concentrate to obtain a crude extract of mulberry leaf polyphenols.

[0048] (2) Take the crude extract of mulberry leaf polyphenols and separate it through membranes with a molecular weight cut-off of 50,000 and 80,000 Da to obtain a solution of mulberry leaf polyphenols with a molecular weight cut-off of 50,000 to 80,000 Da.

[0049] (3) get mulberry leaf polyphenol solution, carry out macroporous adsorption resin column chromatography, column chromatography comprises the following steps: a. adsorption regulates mulberry leaf polyphenol solution pH 2.0, and concentration is 3.0mg / mL, and flow velocity is 3.5 c...

Embodiment 2

[0051] (1) Get mulberry leaf powder, add its volume concentration of 9 times of weight and be 70% ethanol phosphoric acid solution, adjust pH to be 3.5, temperature is 50 ℃, ultrasonic-microwave synergistic extraction 3 times, adjust ultrasonic frequency 35kHz, microwave power is 70W , combined the extracts, filtered, and concentrated to 1 / 4 of the original volume of the concentrate to obtain a crude extract of mulberry leaf polyphenols.

[0052] (2) Take the crude extract of mulberry leaf polyphenols and separate it through membranes with a molecular weight cut-off of 50,000 and 80,000 Da to obtain a solution of mulberry leaf polyphenols with a molecular weight cut-off of 50,000 to 80,000 Da.

[0053] (3) Get the mulberry leaf polyphenol solution, and carry out macroporous adsorption resin column chromatography, and the column chromatography comprises the following steps: a. Adsorption adjusts the pH of the mulberry leaf polyphenol solution to 3.0, and the concentration is 4.0...

Embodiment 3

[0055] (1) Get mulberry leaf powder, add its volume concentration of 10 times of weight and be 80% ethanol phosphoric acid solution, adjust pH to be 4, temperature be 55 ℃, ultrasonic-microwave cooperative extraction 3 times, adjust ultrasonic frequency 40kHz, microwave power is 100W , combined the extracts, filtered, and concentrated to 2 / 5 of the original volume of the concentrate to obtain the crude extract of mulberry leaf polyphenols.

[0056] (2) Take the crude extract of mulberry leaf polyphenols and separate it through membranes with a molecular weight cut-off of 50,000 and 80,000 Da to obtain a solution of mulberry leaf polyphenols with a molecular weight cut-off of 50,000 to 80,000 Da.

[0057] (3) get mulberry leaf polyphenol solution, carry out macroporous adsorption resin column chromatography, column chromatography comprises the following steps: a. adsorption regulates mulberry leaf polyphenol solution pH 4.0, and concentration is 5.0mg / mL, and flow velocity is 5....

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Abstract

The invention discloses a preparation method for polyphenol from mulberry leaves, and a microcapsule and the application thereof. The preparation process for the polyphenol from the mulberry leaves is as follows: the high-purity polyphenol from the mulberry leaves is obtained by adopting various extraction separation and purification processes such as integrated ultrasonic-microwave synergistic extraction, ultrafiltration, macroporous absorbent resin purification and the like, and the microcapsules for polyphenol from the mulberry leaves are prepared by adopting the microcapsule technology, and meanwhile, the microcapsules are used for the functional food with oxidation resistance and liver-protecting action. The method has the advantages of short extraction time, low temperature, high extraction rate, and the like, and the polyphenol from the mulberry leaves prepared by the method has high purity and can be applied to the aspect of the functional food with oxidation resistance and liver-protecting action.

Description

technical field [0001] The present invention relates to a method for preparing mulberry leaf polyphenols, and the invention also relates to microcapsules prepared from the mulberry leaf polyphenols prepared by the method, and the role of the microcapsules in preparing foods with anti-oxidation and liver-protecting functions application. Background technique [0002] The mulberry tree belongs to the Moraceae family, the genus Morus L. Mulberry trees are naturally distributed in a wide range. There are mulberry trees growing in Asia, Europe, Oceania, America and Africa, among which Asia is the most. my country is the birthplace of the world's silk industry. It has a history of more than 4,600 years of planting mulberry and raising silkworms. It is also one of the important origin centers of mulberry trees. Therefore, my country's mulberry trees are extremely rich in resources. According to "Chinese Mulberry Varieties", there are currently 15 The mulberry species and its 4 var...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/605A61K9/50A61K47/36A61K47/38A61K47/42A61P1/16A23L1/30A61K127/00A23L33/105
Inventor 邹宇晓廖森泰肖更生吴娱明唐翠明陈智毅刘学铭徐玉娟施英吴继军
Owner SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI
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