email

How Is The Unique Fragrance Of Black Tea Produced?

Home > News > Tea Industry NewsHow Is The Unique Fragrance Of Black Tea Produced?

Hot Products

news

How to Choose a Gasoline Engine Tea Harvester

How to Choose a Gasoline Engine Tea Harvester

2024-09-04 13:49:04

This article provides guidance on choosing a gasoline engine tea harvester by considering factors such as field conditions, performance needs, quality and durability, ease of operation and maintenance, and cost.

The Advantages and Considerations of Fuel-powered Tea Harvesters

The Advantages and Considerations of Fuel-powered Tea Harvesters

2024-09-04 11:59:23

This blog explores the features and applications of fuel-powered tea harvesters, highlighting their advantages in large tea gardens while also discussing some considerations for their use. In the world of tea harvesting, fuel-powered tea harvesters play a significant role, especially in large-scale tea plantations.

Types of Tea Harvesters

Types of Tea Harvesters

2024-09-04 11:54:50

This blog post discusses the different types of tea harvesters, classified by power source, harvesting method, and operation mode. It provides an overview of the characteristics and applications of each type to help tea growers and enthusiasts understand the available options for tea harvesting.

Different methods of tea withering

Different methods of tea withering

2024-08-21 17:06:53

Wither is an important link in the tea production process. The main purpose is to moderately dissipate the moisture in the tea leaves, soften the leaves, and facilitate subsequent processing. The following is some introduction about withering tea

Contact us

Quanzhou Deli Agroforestrial Machinery Co., Ltd.
If you want know more about our products, please send email to us : info@delijx.com. You also can send message to our WeChat or WhatsApp : 0086-18120033767

How Is The Unique Fragrance Of Black Tea Produced?

2021-07-29 15:52:16

The essence of black tea fermentation is that the fresh leaf cell tissue is damaged. To be precise, the semipermeable vacuole membrane is damaged. Polyphenols can come into contact with endogenous oxidases, causing the enzymatic oxidative polymerization of polyphenols. The role of theaflavin, thearubin and other colored substances. At the same time, the coupling produces a series of chemical reactions of the contained substances, thereby forming the unique aroma substances of black tea. Black tea fermentation is neither microbial fermentation nor simple chemical oxidation, but relies on the enzymatic oxidation of endogenous enzymes in fresh leaves.

Fermentation is the key process of making black tea. Without tea fermentation, the quality characteristics of black tea cannot be formed. If fermentation is abnormal, the quality of black tea will decrease.

During the fermentation process, various internal components have undergone profound changes, such as the oxidation of polyphenols, the destruction of chlorophyll, the hydrolysis of proteins and carbohydrates, and the changes in aromatic substances, among which the most important influence on the quality of black tea Is the oxidation of polyphenols.

The substances contained in tea are gradually transformed during the fermentation process, making the unique aroma of black tea gradually appear in the production.