32 results about "Dracaena cochinchinensis" patented technology

The invention provides a compound preparation which comprises dracaena cochinchinensis resin or daemonorops draco resin and other components and has the effects of trauma treatment, tissue repair, angiitis treatment and the like. The compound preparation is characterized in that the ratio of the dracaena cochinchinensis resin or the daemonorops draco resin to borneol is 9:1, and the ratio of the dracaena cochinchinensis resin or the daemonorops draco resin to berberine to borneol is 9:4:1, or the ratio of the dracaena cochinchinensis resin or the daemonorops draco resin to the berberine to the borneol is 1:1:0.15. The invention also provides a preparation method of the compound preparation and application of the dracaena cochinchinensis resin or daemonorops draco resin compound in the preparation of compound gels, liniment, cataplasm, adhesive bandages (such as patches) and other preparations. Compared with two positive medicines (Madecassol, jingwanhong soft plaster), the dracaena cochinchinensis resin or daemonorops draco resin compound preparation has the obvious effects of promoting wound healing and tissue repair. The acute toxicity test and the long-term toxicity test show that the preparation is safe to use.

The invention belongs to the field of extraction of traditional Chinese medicines, and in particular relates to a method for simultaneous preparation of 7-hydroxy-4 '-methoxy flavan and pterostilbene. The method includes the steps of: 1) taking dracaena cochinchinensis grease-containing wood or ethanol extract thereof, grinding, adding petroleum ether to extract, filtering to obtain filter residue for standby use; 2) using chloroform for reflux extraction of the obtained filter residue, and recovering the chloroform to obtain chloroform extract; 3) using methanol to dissolve the obtained chloroform extract, performing column chromatography, eluting with methanol with every 250ml being one flow part, and merging 2-8 flow parts; 4) concentrating the merged 2-8 flow parts to dry, dissolving with methanol, using a reverse phase silica gel column for column chromatography, eluting with methanol with every 100ml being one flow part, and respectively merging 14-18 flow parts and 20-27 flow parts; and 5) concentrating the respectively merged 14-18 flow parts and 20-27 flow parts to dry, and respectively recrystallizing to obtain the two compounds of 7-hydroxy-4'-methoxy flavan and pterostilbene. The two compounds of 7-hydroxy-4 '-methoxy flavan and pterostilbene are firstly and simultaneously prepared from dracaena cochinchinensis by the method.

The invention relates to an extract of Dracaena glabrata with antibacterial function, in particular to the application of the extract and its stilbene monomer compound as a bacteriostatic agent for inhibiting plant pathogenic bacteria. A kind of dracaena extract with antibacterial function, described dracaena extract is the extract that extracts from the resin of dracaena, and the extract contains the following chemical formula: The stilbene compounds shown in I, II, and III, the total resin extract and the stilbene compounds of the present invention have broad-spectrum inhibitory activity on plant pathogenic fungi, and the inhibitory concentration ranges between 3.27-46.38 μg / mL.

The present invention discloses artificial propagation process of Dracaena cochinchinensis. The propagation process includes seedbed preparation, seed treatment, seeding, seedbed management, transplanting, field management and other steps. The present invention makes it possible for planting Dracaena cochinchinensis in large scale and protecting the wild rare medicine source plant resource.

The invention provides a tissue culture and rapid propagation method for dracaena cochinchinensis. The tissue culture and rapid propagation method comprises the following steps: (1) taking a dracaena cochinchinensis seed as an explant and disinfecting; (2) putting the disinfected explant into an MS (Murashige and Skoog) culture medium to be induced and burgeoned to obtain a sterile test-tube plantlet; (3) putting the sterile test-tube plantlet into the MS culture medium to be subjected to test-tube plantlet rapid propagation and culture to obtain cluster buds; (4) putting the cluster buds into an MS strong seedling culture medium to carry out strong seedling culture to obtain a strong plant; (5) putting the strong plant into an MS rooting culture medium to be cultured to obtain a complete seedling with roots; and (6) taking the complete seedling with the roots and carrying out domestication; and transplanting the seedling into a sand bed to grow for one month and then transplanting the seedling to a large field. With the adoption of the culture method, the growth coefficient of the cluster buds of the obtained dracaena cochinchinensis reaches 10-15 times; the rooting rate of an obtained tissue culture seedling is more than 95% and the survival rate of a transplanted seedling bed is more than 90%, so that the large-scale seedling growth problem of the dracaena cochinchinensis is solved effectively.

The invention discloses a method of propagation by cuttings for dracaena cochinchinensis SC chen, which consists of selecting branches of dracaena cochinchinensis SC chen trees with an age of over two years, cutting the upper end of the branches, cutting the lower end to 40-50 degree of inclined surface, sealing the upper extreme tangent plane of the grafting ear with paraffin wax, immersing the lower end tangent plane in aqueous solution of root-producing powder, carrying out cuttage by the conventional process and transferring into large field planting.

The invention relates to a dracaena cochinchinensis quality detection method. The detection method comprises a step of measuring the content of 7-hydroxyl-4'-methoxylflavane and / or pterostilbene in dracaena cochinchinensis extract (dracaena cochinchinensis general flavone) through a wavelength conversion HPLC method, wherein the content of 7-hydroxyl-4'-methoxylflavane in the dracaena cochinchinensis general flavone is not less than 0.10 wt%, and / or the content of pterostilbene in the dracaena cochinchinensis general flavone is not less than 0.20 wt%. Through the optimization of the chromatogram conditions and application of the wavelength conversion HPLC method, two low polarity effective components in dracaena cochinchinensis can be simultaneously measured, so the method has a very important meaning in the overall quality control of medicinal materials and extracts.