Process for producing green tea

A new technology and green tea technology, applied in the field of new green tea production technology, can solve problems such as affecting the quality of tea leaves, and achieve the effects of clear tea soup, no damage to the effect, and refreshing aroma

Inactive Publication Date: 2003-01-22
杨卫东
View PDF2 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Oxidation reactions and excessive mechanical damage under long-term high-temperature conditions a

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] First, pre-treat the fresh leaves, including sorting, impurity removal and classification; washing, dust removal, etc.; The leaves can also be omitted from washing and draining. The pretreated fresh leaves are either quick-frozen and refrigerated, or directly processed.

[0014] 1. Taking the existing wok in the tea factory as an example, the process is described as follows. An independent space is set on the stove, and the frying pan is placed in it. Nitrogen or CO 2 Inert gas is filled into this space to form hypoxic or oxygen-free conditions. Calculate the dilution amount of the inert gas according to the volume percentage, so that the oxygen partial pressure in the space is ≤140mmHg column (hypoxic condition), or completely replace the air in the space with the inert gas (anaerobic condition). A fire is lit under the stove, and the temperature of the blades in the wok is monitored by a temperature detector. Place fresh leaves or thawed and revived leaves in a f...

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 production process of green tea includes fresh tea leaf sorting, washing, enzyme killing, flavoring, drying and other steps. The enzyme killing, flavoring and drying steps are completed at low oxygen of oxygen pressure lower than 140 mmHg or oxygen-free condition and at 80-100 deg.c, 40-80 deg.c and 60 deg.c below separately. The prdouction process can avoid the oxidizing damage of chlorophyll, catechin, theanine and other effective components in tea. Green tea produced based on the said technological process is complete, homogeneous in color, fragrant and tasty and has high enjoying value and health functions, and may be kept for over one year without change in color and taste.

Description

1. Technical field [0001] The invention relates to a processing method of tea beverage, in particular to a new technology for making green tea. 2. Background technology [0002] China is the world's largest producer and consumer of green tea, with an annual output and sales of about 420,000 tons. The existing green tea production process includes sorting → greening → kneading → molding → drying → commercialization. Its main feature is that it has been mechanically processed for a long time under the conditions of high temperature and high oxygen content, resulting in a series of damage to green tea. Chemical, biochemical reactions and mechanical destruction of color, taste and active ingredients. For example, Chinese patent 1283393C "A Production Method of Green Tea" discloses a green tea production method improved on the basis of traditional techniques. First, it is finished at 130 degrees for 1 minute, after natural cooling, it is finished at 80 degrees for 1 minute, and...

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): A23F3/06A23L3/40
Inventor 杨卫东
Owner 杨卫东
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