Phosphate-modified porous starch quantitative embedding tea polyphenol compound and preparation method and application thereof

A technology of porous starch and phosphate ester, applied in application, food science, tobacco and other directions, can solve the problems of loss of scavenging free radicals in cigarette smoke, discount of efficacy in application, inability to play its role, etc., to achieve good antioxidant capacity, The effect of simple addition method and guaranteed storage stability

Inactive Publication Date: 2015-12-02
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, general antioxidants have a certain ability to scavenge free radicals in cigarette smoke at the initial stage of filter addition. With the prolongation of storage time, the instability of oxidants leads to a significant decline in its antioxidant capacity, thus losing the ability to scavenge free radicals in cigarette smoke. the role of
[0004] Tea polyphenols, as a mixture of polyphenols present in tea trees, are widely used in medicine, food, health care products, cosmetics and other industries due to their strong antioxidant capacity, but the preservation of tea polyphenols requires very strict conditions , such as temperature, humidity, light, pH conditions, etc., once exposed to the air, it is prone to self-oxidation, degradation, hydrolysis, isomerization and other reactions, moisture absorption and agglomeration and self-oxidation into yellow-brown substances, which will affect the nutritional value and taste of the product Therefore, if the tea polyphenols products cannot solve the technical problems of storage, the efficacy of the application will be greatly reduced, or even unable to play its role

Method used

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  • Phosphate-modified porous starch quantitative embedding tea polyphenol compound and preparation method and application thereof
  • Phosphate-modified porous starch quantitative embedding tea polyphenol compound and preparation method and application thereof
  • Phosphate-modified porous starch quantitative embedding tea polyphenol compound and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Preparation of corn porous starch

[0029] The raw corn starch is made into starch milk with a concentration of 20% (m / v) from a pH 5.5 phosphate buffer solution, stirred and preheated in a constant temperature magnetic stirrer at 55°C for 10 minutes, and then a compound enzyme with a mass of 1% of the raw corn starch is added (Glucoamylase: α-amylase = 1:3, w / w) for enzymolysis, stirred and reacted at 55°C for 12 hours, then added 1mol / L NaOH solution to adjust the pH value to 10.0, filtered and washed the filter cake in Dried in a drying oven at 50°C to constant weight, crushed and passed through a 100-mesh sieve to obtain corn porous starch.

[0030] 2. Preparation of phosphate ester modified porous starch

[0031] First prepare a sodium tripolyphosphate solution with a concentration of 5% (m / v), then adjust the pH value to 6.0 with a phosphoric acid solution, then add corn porous starch to the sodium tripolyphosphate solution to prepare a concentration of 40% (m...

Embodiment 2

[0038] 1. Preparation of corn porous starch

[0039] With embodiment 1.

[0040] 2. Preparation of phosphate ester modified porous starch

[0041] Prepare a sodium tripolyphosphate solution with a concentration of 7% (m / v), then adjust the pH value to 6.0 with phosphoric acid solution, then add corn porous starch to the sodium tripolyphosphate solution to prepare a starch with a concentration of 40% (m / v) Milk, stirred for 30 minutes and suction filtered, the obtained filter cake was soaked and washed with 95% ethanol, and suction filtered again, the filter cake was dried at 40°C to a moisture content of 5-10%, the reaction temperature was controlled at 140°C for 150 minutes, and crushed through 100 mesh Sieve to obtain phosphate ester modified porous starch with a degree of substitution of 0.078.

[0042] 3. Preparation of phosphate-modified porous starch quantitatively entrapped tea polyphenol compound

[0043] Weigh 4.5g of tea polyphenols and prepare 1000mL of a solutio...

Embodiment 3

[0045] 1. Preparation of corn porous starch

[0046] With embodiment 1.

[0047] 2. Preparation of phosphate ester modified porous starch

[0048] Prepare a sodium tripolyphosphate solution with a concentration of 3% (m / v), then adjust the pH value to 6.0 with a phosphoric acid solution, then add corn porous starch to the sodium tripolyphosphate solution to prepare a starch with a concentration of 40% (m / v) Milk, stirred for 30 minutes and suction filtered, the obtained filter cake was soaked and washed with 95% ethanol, and suction filtered again, the filter cake was dried at 40°C to a moisture content of 5-10%, the reaction temperature was controlled at 140°C for 150 minutes, and crushed through 100 mesh Sieve to obtain phosphate ester modified porous starch with a degree of substitution of 0.036.

[0049] 3. Preparation of phosphate-modified porous starch quantitatively entrapped tea polyphenol compound

[0050] Weigh 4.0g of tea polyphenols and prepare 1000mL of a solut...

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PUM

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Abstract

The invention discloses a phosphate-modified porous starch quantitative embedding tea polyphenol compound and a preparation method and application thereof. The phosphate-modified porous starch quantitative embedding tea polyphenol compound is a compound which is obtained in the way that porous starch absorption embedding tea polyphenol is modified by phosphate and then freezing and drying are carried out. The phosphate-modified porous starch quantitative embedding tea polyphenol can serve as a cigarette filter tip addition agent, and the dosage is 10 mg per cigarette. Through a manufactured binary combination filter tip, the solid-phase free radical and the gaseous-phase free radical in cigarette main stream smoke are lowered by 12.2% and 33.4% respectively, and after cigarettes are stored for one month at a normal temperature, the solid-phase free radical and the gaseous-phase free radical are lowered by 13.1% and 31.7% respectively.

Description

1. Technical field [0001] The invention relates to a tea polyphenol compound and a preparation method thereof, in particular to a phosphate-modified porous starch quantitatively embedded tea polyphenol compound, a preparation method and application thereof, belonging to the field of cigarette manufacturing. 2. Background technology [0002] Smoking is harmful to health has been widely recognized by the public. With the increasing living standards and quality of life requirements, consumers are becoming more and more aware of the safety of smoking. More and more countries and consumers have joined the ranks of tobacco control. Domestic The foreign tobacco industry is facing unprecedented pressure. To selectively reduce the harmful substances in cigarette smoke and reduce the harm of cigarettes has been widely valued by tobacco workers. Free radicals in cigarette smoke are an important class of harmful substances, which can cause direct or indirect damage to the smoker's body...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24D3/08
Inventor 杜先锋胡贤春骆慧敏宁敏徐迎波王程辉
Owner ANHUI AGRICULTURAL UNIVERSITY
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