Rutin extraction method

[0027] Example 1

[0028] A method for extracting rutin includes the following steps:

[0029] Step 1: Steam Sophora rice in a container for 1 hour, crush it after cooling, and place it in an extraction tank;

[0030] The second step: add sodium metabisulfite and borax, the weight ratio is 0.8:4.5;

[0031] The third step: add 20% ethanol solvent, stir and extract for 50 min in a water bath at 60°C;

[0032] Step 4: Filter out Huai Mi with gauze, centrifuge at 2800r / m for 6min, and collect the supernatant;

[0033] Step 5: Add 20% ethanol solvent to the filtered Huai Mi again, stir and extract for 50 minutes in a water bath at 60°C, filter the Huai Mi with gauze, centrifuge at 2800r / m for 6 minutes, and collect the supernatant;

[0034] Step 6: Combine the filtrate obtained from the two filtrations;

[0035] Step 7: Concentrate the filtrate at 85°C, add ethanol, and let it stand overnight in the refrigerator;

[0036] The eighth step: filter, take the filtrate, and concentrate under reduce

[0039] Example 2

[0040] A method for extracting rutin includes the following steps:

[0041] Step 1: Steam Sophora rice in a container for 0.9 hours, crush it after cooling, and place it in an extraction tank;

[0042] The second step: add sodium metabisulfite and borax, the weight ratio is 1.2:5.5;

[0043] The third step: add 20% ethanol solvent, stir and extract for 60 min in a water bath at 70°C;

[0044] Step 4: Filter out Huai Mi with gauze, centrifuge at 3200r / m for 8min, and collect the supernatant;

[0045] Step 5: Add 20% ethanol solvent to the filtered Huaimi again, stir and extract for 60min in a water bath at 70℃, filter the Huaimi with gauze, centrifuge at 3200r / m for 8min, and collect the supernatant;

[0046] Step 6: Combine the filtrate obtained from the two filtrations;

[0047] Step 7: Concentrate the filtrate at 85°C, add ethanol, and let it stand overnight in the refrigerator;

[0048] The eighth step: filter, take the filtrate, and concentrate under reduced pressure

[0051] Example 3

[0052] A method for extracting rutin includes the following steps:

[0053] Step 1: Steam Sophora rice in a container for 1 hour, crush it after cooling, and place it in an extraction tank;

[0054] The second step: add sodium metabisulfite and borax, the weight ratio is 1:5;

[0055] The third step: add 20% ethanol solvent, stir and extract for 55 min at 65°C in a water bath;

[0056] Step 4: Filter out Huai Mi with gauze, centrifuge at 3000r / m for 7 minutes, and collect the supernatant;

[0057] Step 5: Add 20% ethanol solvent to the filtered Huaimi again, stir and extract 55min in a water bath at 65℃, filter the Huaimi with gauze, centrifuge at 3000r / m for 7min, and collect the supernatant;

[0058] Step 6: Combine the filtrate obtained from the two filtrations;

[0059] Step 7: Concentrate the filtrate at 85°C, add ethanol, and let it stand overnight in the refrigerator;

[0060] The eighth step: filter, take the filtrate, and concentrate under reduced pressure at 68