Method for extracting proanthocyanidin A2 from peanut coat
A technology of peanut coat extract and proanthocyanidins, which is applied in the direction of organic chemistry, can solve the problems of high environmental protection pressure, the inability to regenerate silica gel completely, and the complex process, achieve strong antioxidant activity, promote sustainable development, and enhance added value. Effect
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[0028] Example 1:
[0029] Add 8000 grams of deionized water, heat to 60°C, and extract for 2 hours; add 8000 grams of deionized water, heat to 60°C, and extract for 1.5 hours; combine the two extracts, filter, and reduce the filtrate Pressing and concentrating, and vacuum drying, the peanut coat extract is obtained, and the yield is 15.7%.
Example Embodiment
[0030] Example 2: 1000 grams of peanut coat raw materials, add 16000 grams of deionized water, heat to 60°C, and extract for 2 hours; add 16000 grams of deionized water, heat to 60°C, and extract for 1.5 hours; combine the two extracts, After filtration, the filtrate was concentrated under reduced pressure and dried in vacuum to obtain an extract of peanut coat with a yield of 14.8%.
Example Embodiment
[0031] Example 3: 1000 grams of peanut coat raw materials, add 8000 grams of deionized water, heat to 80°C, extract for 1 hour, then add 8000 grams of deionized water, heat to 80°C, extract for 1 hour, combine the two extracts, After filtration, the filtrate was concentrated under reduced pressure and dried in vacuum to obtain an extract of peanut coats with a yield of 14.0%.
[0032] 2. Enrichment of procyanidin A2 macroporous resin
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