Extraction and Content Determination of Apigenin and Lutein in Chrysanthemum Chrysanthemum
An extraction method, the technology of Hang Bai chrysanthemum, applied in the direction of measuring devices, instruments, scientific instruments, etc., to achieve the effect of reducing cumbersomeness, reducing losses, and simple operation
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Embodiment 1
[0020] Dry Chrysanthemum chrysanthemum in an incubator at 20°C, crush it, take 1g Chrysanthemum chrysanthemum and extract it in 50mL of 95% alcohol for 120 minutes, repeat the extraction 3 times, filter and concentrate the extract to dryness under reduced pressure, and dilute to 10mL with methanol , detected by HPLC.
[0021] Chromatographic conditions and system suitability experiment: Octadecylsilane bonded silica gel was used as filler, methanol-water-acetonitrile was used as mobile phase, and the detection wavelength was 328nm for apigenin and 444nm for lutein;
[0022] Preparation of reference substance solution: Accurately weigh apigenin and lutein reference substances, place them in a brown bottle, add methanol to make a solution containing 10ug per 1mL, as the reference substance solution;
[0023] Preparation of the test solution: After the extract was concentrated and evaporated to dryness, the volume was fixed to 10 mL with methanol to obtain the test solution;
[...
Embodiment 2
[0026] Dry the Chrysanthemum chrysanthemum in a 100°C incubator, crush it, take 2g of Chrysanthemum chrysanthemum and extract it in 50mL of acetone for 30 minutes, repeat the extraction twice, filter and concentrate the extract to dryness under reduced pressure, and dilute to 100mL with methanol. Detection by HPLC.
[0027] Chromatographic conditions and system suitability experiment: Octadecylsilane bonded silica gel was used as filler, methanol-water-acetonitrile was used as mobile phase, and the detection wavelength was 328nm for apigenin and 444nm for lutein;
[0028] Preparation of reference substance solution: Accurately weigh apigenin and lutein reference substances, place them in a brown bottle, add methanol to make a solution containing 20ug per 1mL, as the reference substance solution;
[0029] Preparation of the test solution: After the extract was concentrated and evaporated to dryness, the volume was fixed to 50mL with methanol to obtain the test solution;
[003...
Embodiment 3
[0032] Dry the Chrysanthemum chrysanthemum in a 50°C incubator, crush it, take 1g of Chrysanthemum chrysanthemum and extract it in 30mL of acetone for 60 minutes, repeat the extraction once, filter and concentrate the extract to dryness under reduced pressure, and dilute to 10mL with methanol. Detection by HPLC.
[0033] Chromatographic conditions and system suitability experiment: Octadecylsilane bonded silica gel was used as filler, methanol-water-acetonitrile was used as mobile phase, and the detection wavelength was 328nm for apigenin and 444nm for lutein;
[0034] Preparation of reference substance solution: Accurately weigh apigenin and lutein reference substances, place them in a brown bottle, add methanol to make a solution containing 50ug per 1mL, as the reference substance solution;
[0035] Preparation of the test solution: After the extract was concentrated and evaporated to dryness, the volume was fixed to 25mL with methanol to obtain the test solution;
[0036] ...
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