Method for extracting hovenia dulcis thunb total flavones by cooperation of surfactant and microwave-ultrasonic extraction process
A technology of surfactant and Hovenia dulcis, which is applied in the field of extraction of total flavonoids from Hovenia dulcis by using surfactants in conjunction with microwave-ultrasonic waves, can solve toxicity and other problems, achieve low cost, avoid thermal effects, and consume less energy
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Embodiment 1
[0023] A method for extracting total flavonoids from Hovenia dulcis fruit with surfactants combined with microwave-ultrasonic waves, comprising the following steps: (1) Accurately weigh 5 g of Hovenia dulcis fruit pulverized, vacuum-dry, and perform Soxhlet extraction with petroleum ether until the fat is completely removed to obtain 4.59g of completely degreased pulverized Hovenia dulcis seeds; (2) Mix 4.59g of completely degreased Hovenia dulcis seeds, 50g of distilled water and 0.4g of surfactant Tween 20 to obtain a mixed solution; (3) mix The mixed solution is subjected to microwave-ultrasonic extraction, the microwave power is 300W, the ultrasonic power is 400W, and the extraction time is 10min; (4) after the extraction is completed, filter the mixed solution and take the filtrate; (5) add 60vt% (volume Concentration) ethanol for alcohol precipitation, after standing still, the alcohol supernatant was discarded, and then concentrated and dried to obtain the total flavonoi...
Embodiment 2
[0027] A method for extracting total flavonoids from Hovenia dulcis fruit with surfactants combined with microwave-ultrasonic waves, comprising the following steps: (1) Accurately weigh 5 g of Hovenia dulcis fruit pulverized, vacuum-dry, and perform Soxhlet extraction with petroleum ether until the fat is completely removed to obtain 4.59g of completely degreased pulverized Hovenia dulcis seeds; (2) 4.59g of completely degreased pulverized Hovenia dulcis seeds, 100g of distilled water and 0.2g of surfactant Tween 40 were mixed uniformly to obtain a mixed solution; (3) The mixed solution is subjected to microwave-ultrasonic extraction, the microwave power is 200W, the ultrasonic power is 100W, and the extraction time is 5min; (4) after the extraction is completed, filter the mixed solution and take the filtrate; (5) add 80vt% ethanol to the filtrate for Alcohol precipitation, discard the alcohol supernatant after standing, and then concentrate and dry to obtain the total flavono...
Embodiment 3
[0031] A method for extracting total flavonoids from Hovenia dulcis Fructus in conjunction with microwave-ultrasonic waves, comprising the steps of:
[0032] (1) Accurately weigh 5g of the crushed Hovenia dulcis fruit, vacuum-dry it, and perform Soxhlet extraction with petroleum ether until completely degreased to obtain 4.59g of completely degreased Hovenia dulcis; (2) Completely degrease Hovenia dulcis 4.59g of crushed matter, 150g of distilled water and 3g of surfactant Tween 60 were mixed uniformly to obtain a mixed solution; (3) the mixed solution was subjected to microwave-ultrasonic extraction, the microwave power was 600W, the ultrasonic power was 500W, and the extraction time was 20min; (4) After the extraction, filter the mixed solution and take the filtrate; (5) Add 40vt% ethanol to the filtrate for alcohol precipitation, discard the alcohol supernatant after standing, and then concentrate and dry to obtain Hovenia dulcis. flavonoids.
[0033] Using NaNO 2 -Al(NO ...
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