Preparation method of herba dendrobii green tea

Abstract

The invention discloses a preparation method of herba dendrobii green tea. The method comprises the following steps: reasonably controlling rotation speed of a roller and an enzyme deactivation temperature when enzyme deactivation is carried out; diffusing moisture in herba dendrobii fresh leaves, passivating activity of enzyme, inhibiting enzymatic reaction, and promoting intracellular inclusionin the herba dendrobii fresh leaves to produce a certain chemical change so as to form qualitative characteristics of the green tea to avoid phenomenon of red stems and red leaves as well as focal spots. Sectional twisting is carried out by adopting combination of air pressure twisting and light press twisting when twisting is carried out so that the leaf blades of the herba dendrobii leaves are lightened, the sizes of the leaf blades of the herba dendrobii leaves are reduced, less bald tea and tea byproducts are realized, brewing of the herba dendrobii green tea is convenient, and the concentration of the taste and the richness of a fragrant smell of finished product tea can be effectively improved; the green tea is dried by adopting a two-step drying way when drying is carried out so asto avoid generation of a scorched smell of the tea finished product; spiral angles, which are in a range of 60cm, of the two ends of an enzyme deactivation machine barrel body are greater than 47 degrees, and a spiral angle of the middle section of the enzyme deactivation machine barrel body is smaller than 12 degrees, so that extension of the retention time of the leaf blades of the herba dendrobii leaves can be facilitated, and the quality of the finished product is facilitated.

Description

technical field [0001] The invention relates to the technical field of tea processing, in particular to a method for preparing dendrobium green tea. Background technique [0002] Fresh Dendrobium has a strong ability to clear away heat and generate body fluid. Warm heat and pathogenic factors enter the blood. It should be used for patients with high fever and dysphoria. Dried Dendrobium nourishes yin and clears tonic. Dendrobium candidum and Dendrobium nobile have strong medicinal power. Dendrobium huoshanense is suitable for the elderly and those with insufficient Yin fluid. Dendrobium earrings can produce body fluid without coldness. It can be used as a substitute for tea to appetize and invigorate the spleen. Modern chemical and pharmacological studies have shown that the main active ingredient of Dendrobium officinale is polysaccharide, and the polysaccharide content is as high as 20% to 30%. Because of its polysaccharides, alkaloids, amino acids, trace elements and oth...

AI Technical Summary

Problems solved by technology

However, because wild Dendrobium officinale mainly grows on the cliffs of high mountains, because its seeds are extremely small, as fine as dust and have no endosperm, the germination rate is extremely low under natural conditions, and natural resources are very scarce.

Coupled with years of unrestrained mining, wild resources are becoming increasingly depleted, and the natural output cannot meet the current market demand

[0003] The stems of Dendrobium candidum are mostly used in the market to make Dendrobium candidum maple buckets, and because the leaves of Dendrobium candidum are leathery leaves, the epidermal cell walls of the leaves are thick, and the cuticle is well developed, the active ingredients contained in the leaves of Dendrobium candidum are difficult to release Therefore, the active ingredients in the leaves of Dendrobium officinale are difficult to be utilized