6 results about "Rhizopus stolonifer" patented technology

The application belongs to the technical field of cosmetics, and discloses a Rosa chinensis / Rhizopus stolonifer fermenting composition and a moisturizing and oil-controlling composition. The preparation method of the Rosa chinensis / Rhizopus stolonifer fermenting composition is as follows: dried Rosa chinensis petals are ground and sieved, inoculated into a fermentation medium, and then inoculated with Lactobacillus pentosus for fermentation culture; the obtained fermentation liquor is inactivated, filtered, concentrated and purified to obtain a Rosa chinensis fermentation product filtrate; then the Rosa chinensis fermentation product filtrate is mixed with a Rhizopus stolonifer fermentation product filtrate to obtain the Rosa chinensis / Rhizopus stolonifer fermenting composition. The moisturizing and oil-controlling composition comprises Hamamelis virginiana extract, Buxus seed extract, lactobionic acid, tea tree essential oil, the Rosa chinensis / Rhizopus stolonifer fermenting composition, supermolecular inclusion suberic acid, a surfactant and water. The composition has the synergistic effects of moisturizing, oil-controlling and skin tightening.

The application discloses a natural sesquiterpene compound with an agricultural pathogenic bacteria resisting effect and a preparation method and application thereof. A novel natural sesquiterpene compound is separated from stems of diseased Gordonia aculeata. Activity experiments show that the natural sesquiterpene compound has the agricultural pathogenic bacteria resisting effect, has good antibacterial activity on plant pathogenic bacteria Rhizopus stolonifer, Verticillium dahliae Kleb, Thanatephorus cucumeris and Fusarium oxysporum, and can be applied to plant disease prevention and treatment as an agricultural fungicide.

The invention discloses an application of any one compound of iso-cryptolepine derivatives Da-1-Dc-7 in prevention and treatment of agricultural diseases. A biological activity test shows that the derivative has a significant effect on three plant bacteria such as rice bacterial blight pathogenic bacteria, citrus canker pathogenic bacteria and potato black shank pathogenic bacteria, and six plant fungi such as sclerotinia sclerotiorum, rhizoctonia solani, botrytis cinerea, fusarium graminearum, phytophthora capsici and magnaporthe oryzae. The compound shows certain inhibitory activity on pathogenic bacteria of rice bacterial leaf blight and botrytis cinerea, as well as penicillium expansum, rhizopus stolonifer, aspergillus flavus, brown rot of stone fruit and other moulds, and has a good inhibitory effect on pathogenic bacteria of rice bacterial leaf blight and botrytis cinerea. The compound is low in preparation difficulty, raw materials are cheap and easy to obtain, and the compound is expected to be developed into a novel agricultural antibacterial agent.

This invention provides a sustained-release antibacterial gel system, its preparation method, and its application. The preparation method includes the following steps: 1) preparing a salicylaldehyde-loaded sustained-release gel sheet through acylation, neutralization, and covalent grafting; 2) mixing the loaded salicylaldehyde sustained-release gel sheet with a promoter citrate-disodium hydrogen phosphate buffer solution, and supplementing with 2-methylbutyric acid to obtain the sustained-release antibacterial gel system. The sustained-release antibacterial gel system produced by this invention can effectively inhibit and kill the soft rot pathogen *Rhizopus stolonifer*, improve the resistance of agricultural products, and extend the storage period of agricultural products. The preparation process provided by this invention is simple, green, safe, and easy for industrial production.

The application discloses a mildew-proof agent, a preparation method thereof and application of the mildew-proof agent in bamboo pulp molded products. The mildew-proof agent is a microcapsule structure with a core and a composite wall material covering the core. The core material is an oil camphor essential oil monomer. The composite wall material comprises a first wall material and a second wall material. The first wall material is at least one selected from beta-cyclodextrin and beta-cyclodextrin derivatives. The second wall material is at least one selected from resistant starch and modified starch. The mildew-proof agent with the microcapsule structure can significantly reduce the volatilization of the oil camphor essential oil monomer, improve the stability of the oil camphor essential oil monomer, form obvious bacterial inhibition zones on aspergillus niger and rhizopus stolonifer, has long-lasting mildew-proof effect, and improves the mechanical properties of products. The preparation method is mild and simple, and improves the large-scale application prospect of the oil camphor essential oil monomer in the field of mildew-proof.

The application belongs to the technical field of biological disease prevention and treatment, and particularly relates to application of wormwood essential oil in prevention and treatment of soft rot of sweet potato. The soft rot of sweet potato is caused by Rhizopus stolonifer. The wormwood essential oil is prepared by using a water vapor distillation method. In view of the broad-spectrum bacteriostasis of the wormwood essential oil, the wormwood essential oil is innovatively used in the prevention and treatment experiment of the soft rot of sweet potato. The preliminary experimental results show that the wormwood essential oil has a good bacteriostatic effect on the pathogenic bacteria Rhizopus stolonifer causing the soft rot of sweet potato. In view of the advantages of the wormwood essential oil such as safety, no pollution and natural source, based on the results, better technical reference and practical significance can be provided for the harvesting and preservation of sweet potato and the postharvest preservation of other crops.