The electric baking cage tea dryer can precisely control the temperature, has rich and diverse functions, is suitable for small tea factories, can replace charcoal baking, and can enhance the aroma of tea.
The Hidden Manual Electric Filter Paper Tea Cup Machine, as a semi-automatic sealing and packaging machine, is suitable for packaging various types of tea. It places tea cups on molds for pressing, precise, fast, simple and easy to use, and can produce an average of 500 cups per hour.
The DL-4CD-35N Electric Tea Picker has a cutting width of 35cm and is equipped with an 18V 5.2Ah cordless lithium battery to eliminate wire interference during operation. The working time can be up to 8 hours, and it can pick 150 kilograms of fresh tea leaves in one hour.
DL-6CY1-15 mainly used for pressing cake tea, brick tea, chocolate type tea, the pressure and time can be adjusted, using hydraulic control, tea shaping is better. Machine has 1 working stations, 1 workers can operate the machine at the same time, 1 hour can press 35kg cake tea.
The main function is to inject nitrogen gas after the internal vacuum, allowing the tea to ferment in an anaerobic environment, producing more amino acids (GABA is gamma aminobutyric acid). GABA is a natural chemical substance, equipped with fully automatic vacuum pumping, nitrogen injection and tea fermentation functions. At the same time, it can display gas pressure, nitrogen purity, etc. in real time.
Halogen Rapid Moisture AnalyzerIis mainly used to measure the water content of tea and other foods, with an accuracy of 0.01%. The moisture meter is small in size and fast in measurement, which is suitable for various tea plants
Flat type tea press shaping machine mainly for LongJing Tea, through the computer control program, the manual operation processes such as tea feeding, fixation, flat shaping, polishing are changed into computer control, so that the evenness of each batch of tea can be adjusted and controlled
DL-6CRT-75 tea rolling machine has double action, mainly for tea twisting, drum diameter 75cm, capacity about 120 kg per batch.
1. The effect of temperature on enzymes
There are many enzymes in tea. For example, the presence of polyphenol oxidase can catalyze the oxidation of polyphenols and make the leaves red. If a certain method is used to destroy the activity of polyphenol oxidase, the polyphenols will lose the conditions for the oxidation reaction, so they will not quickly turn red. The "fixation" process in green tea processing is to use high temperature to "Passivation" the activity of enzymes, so that the polyphenols will not be enzymatically oxidized during the subsequent rolling and drying process, thereby maintaining the green leaves of the clear soup.
The purpose of "fixation" is to use high temperature to destroy the oxidase activity, but if it is not handled properly, not only will it not destroy the enzyme activity, but it will increase the enzyme activity, causing red tea leaves and green leaves. It can be seen that the temperature has a duality on the enzyme, that is, it increases the speed of the catalytic reaction. At the same time, the speed of the passivation reaction is also increased under high temperature conditions.
It is irreversible that the enzyme is destroyed by heat, but sometimes the fixation temperature is not high enough, and the enzyme activity is inhibited without being destroyed. After the high temperature is relieved, it will regain vitality, and red stems and green leaves will appear when they are twisted or dried.