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A method for enhancing the antioxidant performance of blueberry anthocyanins

A technology of blueberry anthocyanin and antioxidant performance, which is applied in the direction of anti-toxic agent, organic chemistry, drug combination, etc., can solve the problem that the modification of blueberry anthocyanin is not good enough, and the stability of blueberry anthocyanin is not optimized enough , low degree of enhancement of anti-oxidation performance, etc., to achieve the effect of easy control of process parameters, enhanced scavenging function, and enhanced anti-oxidation performance

Inactive Publication Date: 2018-07-27
GUIZHOU INST OF BIOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, due to the above-mentioned poor stability of blueberry anthocyanins, when a large number of researchers in the prior art modify the stability of blueberry anthocyanins, due to the selection of acylating reagents and the cost of preparing acylating reagents The conditions and the conditions of the modification process of blueberry anthocyanins are not properly controlled, which leads to the failure of the modification of blueberry anthocyanins to achieve better results, which leads to the stability and performance of blueberry anthocyanins. The degree of optimization of blueberry anthocyanins is not enough, such as the degree of enhancement of antioxidant properties is low, which leads to the limitation of the application of blueberry anthocyanins

Method used

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  • A method for enhancing the antioxidant performance of blueberry anthocyanins
  • A method for enhancing the antioxidant performance of blueberry anthocyanins
  • A method for enhancing the antioxidant performance of blueberry anthocyanins

Examples

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Effect test

Embodiment 1

[0039] Such as figure 1 Shown, a kind of blueberry anthocyanin antioxidant performance enhancement method, comprises the following steps:

[0040] (1) Preparation of phenolic acid reagent: mix anhydrous phenolic acid, acetic anhydride, and pyridine in a molar ratio of 1:1:1, and stir at a stirring speed of 50 r / min for 20 minutes in a room temperature environment where nitrogen exists. Obtain acetylated phenolic acid; then mix the acetylated phenolic acid and anhydrous thionyl chloride at a molar ratio of 1:1, and react at a temperature of 30°C in the presence of nitrogen with a stirring speed of 80r / min 1h, then recrystallize with an aprotic solvent to obtain acetylated phenolic acid chloride; then dissolve the acetylated phenolic acid chloride with acetone, the amount of acetone is 1 times the weight of the acetylated phenolic acid chloride, and After it was stirred and mixed evenly, it was placed in an ice bath, and a sodium hydroxide solution was added dropwise while sti...

Embodiment 2

[0051] Such as figure 1 Shown, a kind of blueberry anthocyanin antioxidant performance enhancement method, comprises the following steps:

[0052] (1) Preparation of phenolic acid reagent: mix anhydrous phenolic acid, acetic anhydride, and pyridine at a molar ratio of 1:6:6, and stir for 30 minutes at a stirring speed of 70 r / min in a room temperature environment in the presence of nitrogen. Obtain acetylated phenolic acid; then mix the acetylated phenolic acid and anhydrous thionyl chloride at a molar ratio of 1:5, and react at a temperature of 100°C in the presence of nitrogen with a stirring speed of 100r / min 24h, then use aprotic solvent recrystallization treatment to obtain acetylated phenolic acid chloride; then the acetylated phenolic acid chloride is compatible with acetone, the amount of acetone is 1.5 times the weight of the acetylated phenolic acid chloride, and After it was stirred and mixed evenly, it was placed in an ice bath, and the sodium hydroxide solution ...

Embodiment 3

[0063] Such as figure 1 Shown, a kind of blueberry anthocyanin antioxidant performance enhancement method, comprises the following steps:

[0064] (1) Preparation of phenolic acid reagent: mix anhydrous phenolic acid, acetic anhydride, and pyridine in a molar ratio of 1:3:3, and stir at a stirring speed of 60 r / min for 25 minutes in a room temperature environment where nitrogen exists. Obtain acetylated phenolic acid; then mix the acetylated phenolic acid and anhydrous thionyl chloride at a molar ratio of 1:3, and react at a temperature of 50°C in the presence of nitrogen with a stirring speed of 90r / min 12h, then adopt aprotic solvent recrystallization treatment, obtain the phenolic acid chloride of acetylation; Then the phenolic acid chloride of acetylation is compatible with acetone, the amount of acetone is the weight of 1.3 times of the phenolic acid chloride of acetylation, and After it was stirred and mixed evenly, it was placed in an ice bath, and the sodium hydroxid...

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Abstract

The invention relates to the technical field of modification of blueberry anthocyanidin performance, in particular to a method for enhancing oxidation resistance of blueberry anthocyanidin. A phenolic acid reagent is prepared and used for modifying the blueberry anthocyanidin, and the acylation degree is higher and ranges from 53% to 70%; besides, the whole technological process is short, technological parameters are easy to control, raw materials are easy to obtain, reaction conditions are mild, no pollutant is emitted, and the production cost is lower; the clearing function of the modified blueberry anthocyanidin for free radicals is enhanced significantly, the oxidation resistance of the blueberry anthocyanidin is further enhanced, the stability of the blueberry anthocyanidin is improved, and the blueberry anthocyanidin can be widely applied to fields of foods, health-care products, cosmetics, medicines and the like.

Description

technical field [0001] The invention relates to the technical field of performance modification of blueberry anthocyanins, in particular to a method for enhancing the antioxidant performance of blueberry anthocyanins. Background technique [0002] Blueberry anthocyanin is an important active ingredient extracted from blueberry fruit or leaves. It has the functions of enhancing eyesight, eliminating eye fatigue, delaying brain aging, strengthening heart and lungs, and preventing senile dementia. It has the functions of capillary disease caused by diabetes, AIDS, etc. have a therapeutic effect. As a pure natural anti-aging nutritional supplement, anthocyanin has been proved to be the most effective antioxidant found by humans today. In Europe, it is called "oral skin cosmetics", and its antioxidant performance is better than that of vitamin E. It is 50 times higher and 200 times higher than vitamin C, and its bioavailability to the human body is 100%, which can be detected in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D311/62A61P39/06A61P39/04
CPCC07D311/62
Inventor 徐青周元敬贾强韩瑜秦华军武玉祥聂飞
Owner GUIZHOU INST OF BIOLOGY
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