Method for extracting dihydromyricetin from vine tea
A technology of dihydromyricetin and rattan tea, applied in the direction of organic chemistry, etc., to achieve the effects of saving production costs, convenient operation, and large output
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[0019] Example 1
[0020] (1) Weigh 10 kg of dried leaves of rattan tea, use a microwave oven to conduct microwave radiation treatment at a microwave power of 900w, and crush them to 80-100 mesh particles;
[0021] (2) Add the above particles to the WNT-B microwave countercurrent extraction equipment, and then add 100kg of water, extract for 60 minutes at a microwave power of 1000w, and filter to obtain filtrate A and filter residue A;
[0022] (3) Add filter residue A to the WNT-B microwave countercurrent extraction equipment, add 100kg of water, extract for 60 minutes at a microwave power of 1000w, and filter to obtain filtrate B and filter residue B;
[0023] (4) Combine filter residue A and filter residue B with a total of 5.3 kg, add them to the microwave countercurrent extraction equipment, and then add 15 kg of ethanol with a mass fraction of 70%, extract for 50 minutes at a microwave power of 1000w, and filter to obtain filtrate C;
[0024] (5) Combine filtrate A, filtrate B and...
Example Embodiment
[0025] Example 2
[0026] (1) Weigh 10 kg of dry leaves of rattan tea, use a microwave oven to conduct microwave radiation treatment at a microwave power of 800w, and crush them to 80-100 mesh particles;
[0027] (2) Add the above particles to the WNT-B microwave countercurrent extraction equipment, and then add 60kg of water, extract for 30 minutes at a microwave power of 1500w, and filter to obtain filtrate A and filter residue A;
[0028] (3) Add filter residue A to the WNT-B microwave countercurrent extraction equipment, add 60kg of water, extract for 30 minutes at a microwave power of 1500w, and filter to obtain filtrate B and filter residue B;
[0029] (4) Combine the filter residue A and the filter residue B with a total of 5.1 kg, add them to the microwave countercurrent extraction equipment, and then add 12 kg of 70% ethanol with a microwave power of 1500w for 30 minutes and filter to obtain filtrate C;
[0030] (5) Combine filtrate A, filtrate B and filtrate C, concentrate, cr...
Example Embodiment
[0031] Example 3
[0032] (1) Weigh 10 kg of dry leaves of rattan tea, use a microwave oven to conduct microwave radiation treatment at a microwave power of 800w, and crush them to 80-100 mesh particles;
[0033] (2) Add the above particles to the WNT-B type microwave countercurrent extraction equipment, then add 120kg of water, extract for 90 minutes at a microwave power of 1200w, and filter to obtain filtrate A and filter residue A;
[0034] (3) Add filter residue A to WNT-B type microwave countercurrent extraction equipment, add 120kg of water, extract for 90 minutes at a microwave power of 1200w, and filter to obtain filtrate B and filter residue B;
[0035] (4) Combine filter residue A and filter residue B with a total of 5.5 kg, add them to the microwave countercurrent extraction equipment, add 18 kg of ethanol with a mass fraction of 50%, extract for 30 minutes at a microwave power of 1200w, and filter to obtain filtrate C;
[0036] (5) Combine filtrate A, filtrate B and filtrate...
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