Extraction method of tea polyphenol

An extraction method and technology of tea polyphenols, applied in the field of plant extraction, can solve the problems of high cost, resin residue, unsuitable for industrial production, etc., and achieve the effects of prolonging the service life, saving production costs, and reducing pollution

Active Publication Date: 2015-06-10
JILLION GREEN CHINA BIOLOGY TECH
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Macroporous adsorption resin is the most widely used adsorbent material. However, macroporous adsorption resin has safety hazards such as high cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Extraction method of tea polyphenol
  • Extraction method of tea polyphenol
  • Extraction method of tea polyphenol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The fresh tea leaves in this embodiment are Narcissus tea from Zhangping City, Longyan City, Fujian Province. The content of tea polyphenols in the Narcissus tea is 1.59%. The specific steps for extracting tea polyphenols are as follows.

[0039] (1) Collection of fresh leaves: select the fresh leaves of Zhangping Narcissus tea, pick and collect the middle-open face to the large open face, and 3-4 leaf tips of resident buds.

[0040] (2) Put the fresh tea leaves on a clean utensil to air-dry, the air-drying thickness is 10-15 cm, the air-drying time is 13-15 hours, preferably 15 hours; the airing temperature is 25-30 degrees.

[0041] (3) Enzyme inactivation: Heat the tea after drying in a microwave oven for 4 minutes, the output power of the microwave oven is 250-350W, and the best output power is 300W.

[0042] (4), beating: beat the heated tealeaves into a slurry, add 10 times the weight of fresh tea leaves in the beater, and set the speed of the beater to 5200r / min....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an extraction method of tea polyphenol, in particular to an efficient and safe tea polyphenol extraction technique free of a heat source and free of an organic solvent. The method comprises the following steps: with fresh leaves as a raw material, cooling, carrying out enzyme deactivation, pulping, soaking, squeezing and filtering to prepare tea polyphenol extract liquid; purifying the tea polyphenol extract liquid by the procedures of high-speed centrifugation, refined filtration, ultrafiltration membrane filtration, reverse osmosis membrane concentration, lignocellulose chromatography and spray drying. The extraction rate of the tea polyphenol which is coarsely extracted from fresh leaves is over 76%; and the purity of the purified catechinic acid powder is 62%.

Description

technical field [0001] The invention relates to plant extraction, in particular to an extraction method for extracting tea polyphenols. Background technique [0002] Tea Polyphenols (Tea Polyphenols) is the general term for polyphenols in tea, including flavanols, anthocyanins, flavonoids, flavonols and phenolic acids, mainly flavanols (catechins) , catechins account for 60-80%. Tea polyphenols have a series of important pharmacological functions such as anti-cancer, anti-aging, anti-radiation, scavenging free radicals in the human body, and lowering blood sugar and blood lipids. In recent years, people have continuously studied the health care function of tea polyphenols, and put forward higher requirements for the safety of tea polyphenols. [0003] At present, many manufacturers use dry tea (powder) to produce tea polyphenols through hot water extraction, evaporation concentration and drying. On the one hand, this production method is not conducive to clean production a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61K36/82A61P35/00A61P39/06A61P3/10A61P3/06
Inventor 林秀丽谢苏平林聪明
Owner JILLION GREEN CHINA BIOLOGY TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap