Old leaf tea extract and applications thereof in buccal tablets preparation
A technology of tea extract and old leaves, which is applied in the application field of preparing lozenges, can solve the problems of damaging the competitive advantage of tea products, affecting the normal sales of tea and tea image, and achieves simple and easy preparation methods, low cost, and easy industrialization Effect
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Embodiment 1
[0037] The preparation of embodiment 1 old leaf tea extract
[0038] Described old leaf tea extract is prepared by the following method:
[0039] (1) Pulverize the old leaf tea leaves into fine tea powder, add water, the weight of water is 45 times that of the tea leaves, extract at 100°C for 80 minutes, extract 3 times, combine the filtrates, filter at 80°C, and collect the filtrates; The obtained filtrate was cooled to 15°C, filtered again at 15°C, and the filtrate was collected; for the old leaves of the tea, see Figure 4 .
[0040] (2) Concentrate the collected filtrate under reduced pressure to a concentration of 1.35 g / ml, apply the macroporous resin, elute with eluent A, then elute with eluent B, and combine the eluents. The macroporous resin is SD500 macroporous resin; the eluent A is deionized water, and the eluent B is ethanol with a volume concentration of 5%.
[0041] (3) Concentrate the above-mentioned combined eluent to a concentration of 1.35 g / ml under redu...
Embodiment 2
[0046] The preparation of embodiment 2 old leaf tea extract
[0047] Described old leaf tea extract is prepared by the following method:
[0048] (1) Pulverize the old leaf tea leaves into fine tea powder, add water, the weight of water is 35 times that of the tea leaves, extract at 80°C for 80 minutes, extract twice, combine the filtrates, filter at 60°C, and collect the filtrates; The obtained filtrate was cooled to 15° C., filtered again at 15° C., and the filtrate was collected; at this temperature, the solubility of rare earth elements and heavy metals in the filtrate was reduced.
[0049] (2) Then the collected filtrate was concentrated under reduced pressure to a concentration of 1.21 g / ml, applied to a macroporous resin, eluted with eluent A, and then eluted with eluent B, and combined the eluents. Described macroporous resin is SD500 type macroporous resin;
[0050] The eluent A is deionized water, and the eluent B is ethanol with a volume concentration of 70%.
[...
Embodiment 3
[0057] Embodiment 3 buccal preparation
[0058] formula:
[0059]
[0060] Preparation:
[0061] Pass each of the above components through a 100-mesh sieve and mix evenly, add a menthol ethanol solution with a weight concentration of 70% to prepare a soft material, pass through a 18-mesh sieve for granulation, dry at 60°C for 1 hour, and granulate with an 18-mesh sieve. Slices, ready to serve.
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