Extraction process of radix notoginseng stem and leave components
An extraction process and technology of stems and leaves, applied in the field of extraction and manufacturing of traditional Chinese medicine, can solve the problems of waste, low extraction efficiency, and the technology of extracting three components at the same time has not been seen before, and achieve the effect of increasing yield
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[0071] S1. After cleaning the stems and leaves of Panax notoginseng, put them into a vacuum freeze dryer, lower the temperature to -30°C to -20°C, and keep it for 3 to 4 hours; vacuum drying: turn on the cold trap refrigeration mode, the cold trap device The refrigeration temperature is controlled at -40°C ~ -60°C, the vacuum degree is maintained at 10 ~ 30Pa for drying treatment, and after drying, it is crushed to 40 mesh;
[0072] S2. Add 50° pure water to the stem and leaf powder at a volume ratio of 1:4 and soak for 24 hours. During this period, put the container in a water-proof electric heating constant temperature incubator to keep the soaking liquid at 50°. After soaking, add 15 times 50° Ultrasonic extraction of pure water for 2 times, each time for 15 minutes, the filtrate was obtained by filtration, and the filtrate was concentrated under reduced pressure to 30% volume under the condition of 60-80°C and vacuum degree of -0.02MPa--0.06MPa to obtain the crude extract o...
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