Preparation method of theanine-rich lipid-lowering and blood pressure-lowering white leaf dark tea
A technology of theanine and white leaves, which is applied in the field of tea fermentation, can solve the problems of low utilization rate of resources development, quality characteristics of green leaves, no research reports on development and utilization, low yield, etc., and achieve great commercial development value and strong The ability to produce fungal polysaccharides and the effect of shortening the production cycle
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Embodiment 1
[0036] The preparation of the seed solution of S. coronoidis LYLXSTYYSHCHHJGT2 MH395157 is as follows:
[0037] Take the LYLXSTYYSHCHHJGT2 MH395157 strain of the present invention, inoculate it on a PDA solid plate by streaking and inoculate it on a PDA solid plate, activate and cultivate it at 28°C for 24 hours; use a sterilized toothpick to pick a single colony and inoculate it in a test tube containing 10 mL of PDA liquid medium, Cultivate statically at 28°C for 48h; take the cultured bacterial solution and transfer it into a conical flask containing 50mL of improved PDA medium at a ratio of 5% (v / v), and cultivate at 28°C for 48h to obtain the seed solution ,spare.
Embodiment 2
[0039] A preparation method of white leaf black tea rich in theanine for lowering fat and blood pressure, the steps are:
[0040] 1) Withering of fresh tea leaves: In late spring and early summer, pick fresh tea leaves from albino tea trees without pests and diseases. The picking parts are one bud with three to four leaves, and wither in the withering field for 18 hours, turning it every 2 hours until the tea leaves When the water content reaches 50-60%, the leaves are soft and the stems are soft, and the leaves are withered.
[0041] 2) Fixing: Put the withered leaves into the drum fixing machine, and sterilize at 200°C for 60 seconds to get the fixed leaves;
[0042] 3) Stacking: Put the green leaves into the stacking room for 24 hours, and the stacking height is 45cm. The temperature of the heap is 40°C, the water content of the leaves of the heap reaches 30%, and when the bottom color of the leaves turns brown, the heap is finished, and the leaves are obtained.
[0043] ...
Embodiment 3
[0049] A preparation method of white leaf black tea rich in theanine for lowering fat and blood pressure, the steps are:
[0050] 1) Withering of fresh leaves: In late spring and early summer, pick the fresh leaves of albino tea trees without pests and diseases. The picking parts are three to four leaves per bud, and wither in the withering field for 18 hours, and turn it every 2 hours until the tea leaves are fresh. When the water content of leaves reaches 50-60%, the leaf quality is soft, the leaf stems are soft, the smell of green grass disappears, and the fragrance of nectar is exposed, and the leaves are withered.
[0051] 2) Fixing: Put the withered leaves into the drum fixing machine, and fix them at 250°C for 40 seconds to get the green leaves;
[0052] 3) Wotting pile: Send the green leaves into the pile pile room for 24-36 hours, and the stacking height is 40-50cm. The temperature of the heap is 50°C, the water content of the leaves of the heap reaches 30-35%, and w...
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