Black tea instant powder rich in theaflavin as well as preparation method and application of black tea instant powder

The technology of instant powder and theaflavin is applied to the instant powder of black tea rich in theaflavin and the field of preparation thereof, which can solve the problems of inappropriate extraction and processing technology, excitation of the central nervous system, low content of theaflavin and the like, and achieve effective The effect of complete retention of ingredients, low caffeine content, and high theaflavin content

Active Publication Date: 2022-07-22
广东青云山药业有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although theaflavins in black tea can be used for the treatment of cardiovascular diseases in some elderly people, the caffeine in black tea can cause central nervous system excitement, making it difficult to fall asleep
[0004] The content of theaflavins in high-quality black tea is 0.5% to 2.0%, but the content of theaflavins in black tea instant powder extracted and processed on the market is very low, all between 0% and 1.0%. On the one hand, the black tea itself The content of theaflavins is low. On the other hand, the extraction process is not suitable, resulting in insufficient extraction, or degradation during the extraction process, or the removal of theaflavins during decaffeination.

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
  • Black tea instant powder rich in theaflavin as well as preparation method and application of black tea instant powder
  • Black tea instant powder rich in theaflavin as well as preparation method and application of black tea instant powder
  • Black tea instant powder rich in theaflavin as well as preparation method and application of black tea instant powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] 100kg of black tea (theaflavin content 0.71%, caffeine content 3.1%) was pulverized and passed through an 80 mesh sieve, 25 times the amount of medicinal materials was added with purified water at room temperature, and the mixture was continuously stirred. The extraction takes about 12 seconds. After the extraction is completed, use plate and frame pressure filtration. The temperature of the filtrate is about 60°C, and the filtrate is filtered through a 100nm ceramic membrane. Then use the built-in 10kDa molecular weight ultrafiltration membrane equipment for ultrafiltration. Collect the ultrafiltration effluent and spray dry it. , wherein the inlet air temperature is 180°C and the outlet air temperature is 90°C, 8.6kg of black tea instant powder is obtained, and the product yield is 8.6%. The theaflavin content is 6.5% and the caffeine content is 3.4% by high performance liquid chromatography.

Embodiment 2

[0066] 100kg of black tea (theaflavin content 0.62%, caffeine content 2.9%) was pulverized through an 80 mesh sieve, 30 times the amount of medicinal materials was added with room temperature purified water, and the mixture was continuously stirred. Extraction for about 15s, after the extraction is completed, use plate and frame pressure filtration, the temperature of the filtrate is about 60 ℃, pass through a 200nm ceramic membrane for fine filtration, and then use the built-in 10kDa molecular weight ultrafiltration membrane equipment for ultrafiltration, collect ultrafiltration effluent, spray dry, The air inlet temperature is 180°C and the outlet air temperature is 90°C, and 8.2kg of black tea instant powder is obtained. The product yield is 8.2%. The theaflavin content is 5.9% and the caffeine content is 3.2% by high performance liquid chromatography.

Embodiment 3

[0068] 100kg of black tea (theaflavin content 0.73%, caffeine content 2.9%) was pulverized through an 80 mesh sieve, 30 times the amount of medicinal materials was added with purified water at room temperature, and the mixture was continuously stirred. Extraction for about 15s, after the extraction is completed, use plate and frame pressure filtration, the filtrate temperature is about 60 ℃, pass through a 200nm ceramic membrane for fine filtration, and then use the built-in 5kDa molecular weight ultrafiltration membrane equipment for ultrafiltration, collect ultrafiltration effluent, spray dry, The air inlet temperature is 180°C and the air outlet temperature is 90°C, 10.4kg of black tea instant powder is obtained, and the product yield is 10.4%. The theaflavin content is 5.5% and the caffeine content is 3.5% by high performance liquid chromatography.

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 discloses instant black tea powder rich in theaflavin as well as a preparation method and application of the instant black tea powder. The preparation method comprises the following steps: (1) crushing and sieving black tea medicinal materials; (2) adding normal-temperature water which is 20-30 times of the amount of the medicinal materials, and continuously stirring; (3) carrying out ultrahigh-temperature instantaneous extraction on the mixed solution at the extraction temperature of 119-135 DEG C for 10-30 seconds; (4) carrying out filter pressing on the extracting solution by using a plate frame; (5) carrying out fine filtration on the press filtrate through a 100-200nm ceramic membrane; (6) performing ultrafiltration on the fine filtrate by using built-in ultrafiltration membrane equipment with the molecular weight of 5-10kDa; and (7) collecting the ultrafiltration interception liquid, and performing spray drying to obtain the black tea instant powder. The instant black tea powder is prepared by adopting an ultrahigh-temperature instantaneous extraction process and a concentration process combining a ceramic membrane and an ultrafiltration membrane at the same time, so that the concentration efficiency is high, theaflavin is almost not oxidized or degraded in the extraction stage, the theaflavin is effectively enriched, and caffeine is effectively removed at the same time; in addition, the product disclosed by the invention has an excellent in-vitro anti-saccharification effect.

Description

technical field [0001] The invention relates to the technical field of plant extraction, in particular to a black tea instant powder rich in theaflavin and a preparation method and application thereof. Background technique [0002] As we all know, black tea is rich in tea polyphenols. Tea polyphenols have a strong effect of scavenging free radicals in the human body. In tea soup, they can be combined with caffeine to alleviate the physiological effects of caffeine on the human body, such as obvious antioxidant properties. , can delay the natural aging of the human body. In addition to tea polyphenols, black tea also has a unique substance that is different from other teas - theaflavins. [0003] Theaflavins have strong physiological activities, such as anti-oxidation, anti-cancer and anti-cancer, lowering blood lipids, preventing cardiovascular diseases, antibacterial and antiviral functions, and even stronger than catechins in some aspects. Although theaflavins in black t...

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): A23F3/18A23F3/38A23F3/22A23F3/28
CPCA23F3/18A23F3/38A23F3/22A23F3/28
Inventor 孙振蛟斯聪聪陈玉慧王财林李健雄
Owner 广东青云山药业有限公司
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