3 results about "Podophyllum" patented technology

A method for improving germination rate of seeds of endangered plant podophyllum hexandrum comprises the following steps: step 1, after podophyllum hexandrum fruits are harvested in the same year, pulp and peel do not need to be peeled off, the podophyllum hexandrum fruits can be dried at low temperature after being dried in the shade, and the storage time is selected to be November; 2, the fruits are taken out from the end of January or the beginning of February of the next year, peel and pulp are peeled off, full seeds without plant diseases and insect pests and nicks are soaked with clear water, and then the seeds are soaked and disinfected with a 0.1% potassium permanganate solution; 3, soaking the swollen and disinfected seeds with a GA3 solution with the concentration of 100 mg / L, then taking out the seeds, and washing the seeds with clear water; and 4, uniformly placing the seeds on the laid filter paper by using tweezers, and carrying out germination operation to wait for germination. From low-temperature dry storage of podophyllum hexandrum fruits to final seed germination, the phenomenon of seed mildew and rot easily caused by poor control of the water content of sand in the sand storage process can be reduced, meanwhile, the germination rate of the podophyllum hexandrum can be effectively increased, and the method is worthy of popularization and application.

A method for extracting sesquiterpenoids from the stems and leaves of Arisaema heterophyllum and its application are disclosed. This method can effectively extract sesquiterpenoids G and I from the stems and leaves of Arisaema heterophyllum, effectively solving the problem of preparing drugs for the treatment of Alzheimer's disease. The preparation method is as follows: the dried stems and leaves of Arisaema heterophyllum are pulverized, heated under reflux, filtered, concentrated under reduced pressure, dissolved in water, and extracted sequentially with petroleum ether, ethyl acetate, and n-butanol, respectively, and then concentrated and dried. The concentrated and dried ethyl acetate fraction is eluted, the fraction retained for the retention time is collected, concentrated and dried to obtain the final product. This method is easy to operate, scientifically sound, and can effectively extract sesquiterpenoids G and I from the stems and leaves of Arisaema heterophyllum. These compounds can significantly improve Aβ25-35-induced PC-12 cell damage, opening up new uses for the active ingredients in the stems and leaves of Arisaema heterophyllum, improving the commercial and industrial value of Arisaema heterophyllum, and simultaneously opening up new avenues for the treatment of Alzheimer's disease, resulting in significant economic and social benefits.

The present application relates to the technical field of podophyllotoxin extraction, and particularly relates to a podophyllotoxin separation and purification device, which comprises a juice pressing mechanism, and the juice pressing mechanism is used for juice pressing treatment of chopped rhizomes and leaves. In the present application, the pressing root disc rotates in the positioning ring when descending, so that the arc-shaped cutter at the bottom of the pressing root disc can cut the plant rhizomes in two sections when extruding the plant rhizomes, facilitating the re-chopping of the uncut rhizomes, thereby facilitating the improvement of the juice pressing extraction effect of the plant rhizomes. The above operation can simultaneously perform the juice pressing extraction of medicinal juice of the plant leaves and rhizomes of the podophyllum genus, the obtained medicinal liquid can separate the podophyllotoxin through the decocting method, the medicinal liquid obtained through the juice pressing has less impurities, so that the medicinal substances obtained after decocting can be conveniently filtered, the separation speed of the podophyllotoxin is accelerated, and the medicinal substances in the plant leaves and rhizomes can be simultaneously extracted through the juice pressing mechanism, so that the waste of effective medicinal resources is avoided.