Preparation method of dandelion functional tea

Abstract

The invention discloses a preparation method of dandelion functional tea. The preparation method comprises enzyme killing, fumigation, enzyme deactivation, freezing, moisture regaining, and shaping; the enzyme killing process is as follows: non-flowering or primary-flower dandelion tender seedlings are subjected to anaerobic conditions at the temperature of 80-100 DEG C for 1-5 minutes; the fumigation is carried out in a closed heat preservation box, an acetic acid aqueous solution is used for fumigation to ensure that the moisture content of the dandelion is kept at 40-60%; the enzyme deactivation is as follows: carrying out rapid enzyme deactivation on the fumigated dandelion for 0.5-2 hours at the temperature of 70-80 DEG C under the condition of vacuum pumping by using a microwave enzyme deactivation machine, wherein the moisture content of the dandelion after the enzyme deactivation is 5-15%; the freezing is as follows: keeping the dandelion at 0 DEG C for 2-4 hours in a refrigerator, and then taking out; the moisture regaining is that frozen dandelion tea is placed in air for 1-2 hours; and then shaping is carried out after the moisture regaining is carried out, wherein the temperature of a pot for the shaping is 100-120 DEG C;, and the moisture content of the tea is 10% or less after the shaping is finished.

Description

Technical field [0001] The invention belongs to the field of food technology, and specifically relates to a preparation method of dandelion functional tea. Background technique [0002] Dandelion, also known as Taraxacum officinale and Dioscorea nigra, is named because the plant leaves roots, creeps on the ground, and has a single golden-yellow flower head with a single terminal and an umbrella-shaped white crest after flowering. The plant is widely distributed on hillsides, roadsides, riverbank sandy land and fields. Each part of the plant has high utilization value: containing dandelion alcohol, choline, organic acid, fructose, sucrose, glucose, rich Vc, Vd, carotene, etc. "Tang Materia Medica" records: "sweet, flat and non-toxic". "Compendium of Materia Medica" records: There are a lot of land and the north and south of the river, small Cobland, scattered around, the stems and leaves are like chicory, but the small ears, the young seedlings are edible; the black hair, strong...

AI Technical Summary

Problems solved by technology

[0003] The traditional method of making green tea is not suitable for the production of dandelion tea. The traditional method of making tea will lose a lot of active ingredients and destroy the active ingredients, and the taste is poor. It is not suitable for long-term drinking and will cause certain damage to the human body.