4 results about "Extracellular metabolite" patented technology

This invention provides a method for preparing a high-salinity zinc oxide-resistant nanofluid mediated by Halomonas sp. and its application in enhancing oil recovery. Specifically, it includes: a Halomonas sp. strain CDH-2, with accession number CCTCC NO: M 2025786, which can rapidly grow in high-concentration salt solutions and produce salt-resistant extracellular metabolites. Fermenting and culturing CDH-2 under high-salt conditions yields a fermentation broth with a surface tension below 30 mN / m. Mixing and culturing the obtained fermentation broth with a metal precursor solution yields a high-salinity-resistant metal nanofluid. The resulting metal nanofluid maintains good stable dispersibility in high-salinity water and effectively reduces oil-water interfacial tension. It alters the wettability of oil-wetting surfaces, emulsifies and disperses crude oil, and reduces crude oil viscosity. Therefore, it can be used as an enhanced oil recovery agent in high-salt reservoirs and is widely applied in oilfield flooding, well huff and puff, and heavy oil viscosity reduction.

This invention discloses a species of *Mucor* and its applications, wherein the *Mucor* ( Mucor moelleri The strain number, JSAFC 2483, was deposited on May 6, 2025, at the China General Microbiological Culture Collection Center (CGMCC), with accession number CGMCC No. 41980. The biocontrol bacteria provided by this invention... Mucor moelleri JSAFC 2483 can effectively inhibit Fusarium equisetifolium ( Fusarium equiseti The growth of *Fusarium equisetifolium* was inhibited by 54.90% in plate confrontation culture, and its secreted extracellular metabolites also significantly reduced the growth of *Fusarium equisetifolium*. When the concentration of JSAFC 2483 extracellular metabolites was 10 mL / 100 mL, it significantly reduced the growth of *Fusarium equisetifolium*. F. equiseti The inhibition rate reached 53.98%. When the extracellular metabolite concentration of JSAFC 2483 was 100 mL / 100 mL, it had a significant inhibitory effect on... F. equiseti The inhibition rate reached 56.64%. At the same time, it promoted the growth of pepper plants.

System for the microbial synthesis of bioactive silver nanoparticles for anticancer applications, including: • a microbial culture vessel for cultivating bacterial strains that produce extracellular metabolites; • a separation unit for obtaining a cell-free culture filtrate from the microbial culture; • a reaction chamber for mixing the cell-free filtrate with a silver precursor solution; • a nanoparticle formation module for the production of silver nanoparticles by reduction of silver ions using microbial metabolites in the filtrate; wherein the produced silver nanoparticles exhibit cytotoxic activity against cancer cells.