Method for extracting solanesol and chlorogenic acid from discard tobacco leaves
A technology of waste tobacco leaves and solanesol, which is applied in the field of simultaneously extracting solanesol and chlorogenic acid, and extracting solanesol and chlorogenic acid, can solve the problems of reduced yield, easy oxidation of chlorogenic acid, and increased production cost. Achieve the effects of increasing income, improving comprehensive utilization efficiency, and simplifying the production process
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Embodiment 1
[0049] (1) 100 kg of waste tobacco leaves with a water content of 7.5% were pulverized and mixed with 500 L of 95% ethanol solution for extraction, and then refluxed at 38°C for 4 hours and then filtered through a ceramic membrane once; (2) the step (1 ) the obtained extraction residue is mixed with ethanol solution under the same conditions for extraction, the ceramic membrane is filtered once, and the two extracts are combined; (3) the extract obtained in step (2) is concentrated under reduced pressure at 40°C to obtain a dry product 25.8kg; (4) Dissolve the dry matter with 60L of water, filter it once with a ceramic membrane to obtain a filtrate, dissolve the filter residue with 60L of water, and filter it once with a ceramic membrane to obtain a filtrate, combine the two filtrates and carry out at 40°C Concentrate under reduced pressure to 30L; (5) Dissolve 16.5kg of filter residue with 35L of ethyl acetate, filter it once with a ceramic membrane to remove insoluble matter,...
Embodiment 2
[0051] (1) 200 kg of waste tobacco leaves with a moisture content of 6.8%, were crushed and then mixed with 800 L of 95% ethanol solution for extraction, reflux extraction at 38°C for 4 hours, and then filtered once with a ceramic membrane; (2) Step (1) ) the obtained extraction residue is mixed with ethanol solution under the same conditions for extraction, the ceramic membrane is filtered once, and the two extracts are combined; (3) the extract obtained in step (2) is concentrated under reduced pressure at 40°C to obtain a dry product 63.65kg; (4) Dissolve the dry matter with 150L of water, filter it once with a ceramic membrane to obtain a filtrate, dissolve the filter residue with 150L of water, and filter it once with a ceramic membrane to obtain a filtrate, combine the two filtrates and carry out at 40°C Concentrate under reduced pressure to 70L; (5) Dissolve 34.8kg of filter residue with 80L of ethyl acetate, filter it once with a ceramic membrane to remove insoluble mat...
Embodiment 3
[0053](1) 500kg of waste tobacco leaves with a water content of 8.4% were pulverized and mixed with 1800L of 95% ethanol solution for extraction, reflux extraction at 38°C for 4 hours and then filtered once with a ceramic membrane; (2) Step (1) ) the obtained extraction residue is mixed with ethanol solution under the same conditions for extraction, the ceramic membrane is filtered once, and the two extracts are combined; (3) the extract obtained in step (2) is concentrated under reduced pressure at 40°C to obtain a dry product 143.5kg; (4) Dissolve the dry matter with 300L of water, filter it once with a ceramic membrane to obtain a filtrate, dissolve the filter residue with 300L of water, and filter it once with a ceramic membrane to obtain a filtrate. Concentrate under reduced pressure to 100L; (5) Dissolve 81.2kg of filter residue with 180L of ethyl acetate, filter it once with a ceramic membrane to remove insoluble matter, put it on a silica gel column for chromatographic ...
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