Abstract
Orthogonal experiment optimization of microwave-assisted extraction (MAE) conditions of total flavonoids from Magnolia liliflora petals with the factors of ethanol concentration, extraction time,microwave power,solid/liquid ratio on the yield of total flavonoids were studied. The results showed that optimum extracting conditions of total flavonoids from Magnolia liliflora were as follows: adding 1:10 g·mL-1 of 40% alcohol and extracting for 5 min,microwave irradiation power 464W, under the optimal conditions, the maximal yield of flavonoids was of 2.08%.
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