Method for surface desulfurization of medicinal material pinellia ternate
A technology of medicinal materials, pinellia, applied in the field of surface desulfurization of pinellia medicinal materials, which can solve problems such as long soaking time, loss of active ingredients of Chinese medicinal materials, and impact, and achieve the effect of reducing soaking time, ensuring drug efficacy, and good desulfurization effect
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Embodiment 1
[0012] 1 Instruments and reagents:
[0013] KQ2200B Ultrasonic Instrument (Kunshan Ultrasonic Instrument Co., Ltd.); DK-S28 Electric Heating Constant Temperature Water Bath (Shanghai Senxin Experimental Instrument Co., Ltd.); MP2002 Electronic Balance (Shanghai Sunny Hengping Scientific Instrument Co., Ltd.); PHS-3C pH Meter (Shanghai INESA Scientific Instrument Co., Ltd.);
[0014] The pinellia medicinal material was identified as the dry tuber of Pinellia ternata (Thunb.) Breit; the water used in the experiment was tap water with a pH of 6.70.
[0015] 2 Methods and results
[0016] 2.1 Method: Select 15g of pinellia medicinal materials with a diameter of about 1cm in parallel in 3 groups, soak them in 75mL of tap water, put the above-mentioned Chinese medicinal materials in an ultrasonic instrument, set the ultrasonic power to 100w, the temperature to 50°C, and the ultrasonic time to 1h , Take out the Chinese herbal medicines after ultrasonication, drain them, and let the...
Embodiment 2
[0019] 2.1 Method: Select 15g of pinellia medicinal materials with a diameter of about 1cm in parallel in 3 groups, soak them in 75mL of tap water, put the above-mentioned Chinese medicinal materials in an ultrasonic instrument, set the ultrasonic power to 70w, the temperature to 40°C, and the ultrasonic time to 2h , Take out the Chinese herbal medicines after ultrasonication, drain them, and let them dry in the shade at room temperature.
[0020] 2.2 Results: The residual sulfur dioxide in Pinellia without desulfurization treatment was 2150 mg / kg, and the residual sulfur dioxide in the three groups after ultrasonic desulfurization treatment was 89 mg / kg, 100 mg / kg, and 120 mg / kg, with an average value of 103 mg / kg. The results were less than 150mg / kg, which is lower than the prescribed sulfur dioxide residual standard, with a relative standard deviation of 15.2%, and a desulfurization rate of 95.2%.
Embodiment 3
[0022] 2.1 Method: Select 15g of pinellia medicinal materials with a diameter of about 1cm in parallel in 3 groups, soak them in 75mL of tap water, put the above-mentioned Chinese medicinal materials in an ultrasonic instrument, set the ultrasonic power to 40w, the temperature to 60°C, and the ultrasonic time to 3h , Take out the Chinese herbal medicines after ultrasonication, drain them, and let them dry in the shade at room temperature.
[0023] 2.2 Results: The residual sulfur dioxide in Pinellia without desulfurization treatment was 2150 mg / kg, and the residual sulfur dioxide in the three groups after ultrasonic desulfurization treatment was 174 mg / kg, 200 mg / kg, and 267 mg / kg, with an average value of 213 mg / kg, and the results were greater than 150mg / kg, the relative standard deviation is 22.4%, and the desulfurization rate is 90.1%.
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