High-efficiency lossless cleaning method of tea leaves

Abstract

The invention relates to a high-efficiency lossless cleaning method of tea leaves. The method comprises the following steps: placing fresh tea leaves in a constant-temperature freezer, pre-cooling the fresh tea leaves for 12-20 min, completely immersing the pre-cooled tea leaves in a barley enzyme cleaning solution with the enzyme activity concentration of 0.13-0.28 [mu] / ml for 25-30 h, tiling the immersed tea leaves on a draining device, and sequentially carrying out overturning rinsing, spray flushing, ultrasonic cleaning and cold air blowing until the tea leaves are dry to obtain clean tea leaves for subsequent processing. The method has the advantages of high cleanness of cleaned tea leaves, small influences on the tea leaves, no destroy of the effective components of the tea leaves, and very small loss of the effective component tea polyphenols in the tea leaves, realization of the produced tea leaves being safety drunk, great improvement of the quality of the tea leaves, reduction of the labor intensity of workers, improvement of the cleaning speed of the tea leaves, simple process and cost saving.

Description

technical field [0001] The invention belongs to the technical field of tea cleaning, and in particular relates to an efficient and non-destructive cleaning method for tea. Background technique [0002] Tea is a traditional beverage raw material with a broad mass base. Tea leaves are processed from the tender buds of the fresh tea tree that are picked raw. Tea is one of the world's three major beverages and is known as the "Emperor of Oriental beverages". After analysis, tea contains caffeine, tannin, tea polyphenols, protein, carbohydrates, free amino acids, chlorophyll, carotene, aromatic oil, enzymes, provitamin A, vitamin B, vitamin C, vitamin E, vitamin P and inorganic More than 400 ingredients such as salt and trace elements. Therefore, tea has a wide range of effects, such as clearing the head, refreshing the mind, relieving polydipsia, urinating, eliminating food accumulation, and detoxifying. It is used for wind-heat attack, dizziness, dizziness, excessive thirst...

AI Technical Summary

Problems solved by technology

Although this method can remove pesticides from tea leaves, the effective ingredients in tea leaves, such as tea polyphenols, will be destroyed after the tea leaves are processed.

[0005] In the process of tea preparation process, the cleaning of tea leaves directly affects the purity of tea leaves. Therefore, whether the tea leaves are clean or not has an extremely important impact on the quality of tea leaves. At the same time, the existing pesticide residues, dust pollution and heavy metal pollution on the surface of tea leaves The problem is that the current ozone disinfection has a great impact on the flavor of the tea. The traditional tea cleaning method is cumbersome and difficult to operate, and it also loses a lot of nutrients in the tea.