Preparation method of tea polyphenol
A technology for tea polyphenols and tea powder, which is applied in the field of preparation of tea polyphenols, can solve the problems of easy oxidative deterioration of tea polyphenols, time-consuming and troublesome operation, large solvent consumption, etc., and achieves shortened extraction time, energy saving, and extraction efficiency. high effect
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[0012] Example one:
[0013] Wash and drain 1000g of tea powder and place it in a container, add 100mL of 50% ethanol solution, microwave irradiation power of 320W for 18S, filter to remove the tea powder, repeat the above treatment twice, combine the filtrate, and distill the filtrate After removing the ethanol solvent, the powder obtained by drying is 195g of tea polyphenol. It was determined that the yield of tea polyphenols was 19.5% and the purity was 92.7%.
Example Embodiment
[0014] Embodiment two:
[0015] Wash and drain 1000g of the tea powder and place it in a container, add 110 mL of 50% ethanol solution, microwave irradiation with a microwave power of 320W for 20S, filter to remove the tea powder, repeat the above treatment twice, combine the filtrate, and distill the filtrate After removing the ethanol solvent, the powder obtained by drying is 191g of tea polyphenol. It was determined that the yield of tea polyphenols was 19.1% and the purity was 92.5%.
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