摘要:
A method of biodegradation of a polluting substance by a microorganism is disclosed, wherein the microorganism is an auxotrophic microorganism and the action of the auxotrophic microorganism is controlled by the amount of a required nutrient for the auxotrophic microorganism. A carrier for supporting an auxotrophic microorganism for use for biodegradation contains a required nutrient for the auxotrophic microorganism.
摘要:
A biologically pure culture of Pseudomonas cepacia strain KK01 (FERM BP-4235) is capable of degrading trichloroethylene. A method for obtaining microorganisms having a trichloroethylene degrading ability comprises the steps of culturing microorganisms separated from the bodies of termites in a culture medium. A method for remediating a soil contaminated with trichloroethylene comprises the steps of providing a soil contaminated with trichloroethylene and bringing microorganisms having a trichloroethylene degrading ability derived from intestine of termites into contact with the soil, and biodegrading trichloroethylene in the soil. A method for biodegrading trichloroethylene, comprises the steps of culturing Pseudomonas cepacia KK01 (FERM BP-4235) under existence of an inducer and inducing Pseudomonas cepacia KK01 (FERM BP-4235) to have ability for degrading trichloroethylene and bringing Pseudomonas cepacia KK01 having trichloroethylene degrading ability to contact with trichloroethylene and biodegrading trichloroethylene.
摘要:
A carrier for holding a microorganism in soil releases, from a constituting material thereof, an inducer for production of an enzyme of the microorganism for soil remediation. The carrier for holding a microorganism may comprise a combination of a microorganism holding carrier composed of a hydrophilic polymer for holding the microorganism with an inducer-holder composed of another polymer for holding inducer manifesting a biological action to the microorganism adjacent to each other. A method for remediation of soil comprises application of the microorganism-holding carrier into the soil. A soil-remedying agent comprises the microorganism-holding carrier and a microorganism held thereon which exhibits enzyme activity for decomposition of a polluting substance in the soil under action an inducer released by the carrier.
摘要:
A bacterial strain J1 (FERM BP-5102) which can effectively degrade aromatic compounds and/or chlorinated organic compounds such as trichloroethylene (TCE) is disclosed. Also the degradation occurs at a lower temperature such as 15.degree.. Further, a method for purifying waste water, soil or a gas polluted with the above chemical compounds utilizing the bacterium is disclosed.
摘要:
There are here provided a method for biodegrading trichloroethylene which comprises the step of bringing an aqueous medium containing trichloroethylene into contact with microorganisms having a trichloroethylene degrading ability derived from intestines of termites to degrade trichloroethylene; a method for obtaining the microorganisms; a method for remediating a soil by the use of the microorganisms; and a method for biodegrading an chlorinated organic compound with the microorganisms.
摘要:
A process for forming a fine pattern comprised of a polyhydroxyalkanoate on a substrate is provided. The process comprises steps of applying a polyhydroxyalkanoate-synthesizing enzyme and a 3-hydroxyacyl CoA to coexist in an intended pattern on a substrate, and polymerizing the 3-hydroxyalkanoate by action of the enzyme to form the polyhydroxyalkanoate in a pattern on the substrate. In particular, the fine pattern can be formed by an inkjet system.
摘要:
A magnetic substance-biosubstance complex structure comprises a magnetic substance-containing carrier and a bio-substance immobilized on the carrier, the biosubstance being immobilized through a spacer comprising an amino acid sequence on a surface of the carrier.
摘要:
A magnetic substance-biosubstance complex structure comprises a magnetic substance-containing carrier and a bio-substance immobilized on the carrier, the biosubstance being immobilized through a spacer comprising an amino acid sequence on a surface of the carrier.
摘要:
A structure, which has both a drug holding capability and a sustained release ability utilizing a liposome and mechanical strength of a polyhydroxyalkanoate. This structure is excellent in holding capability for hydrophilic drugs and other water-soluble substances, as well as lipophilic drugs and other hydrophobic substances, and is capable of controlling the sustained release ability. The polyhydroxyalkanoate coats at least a part of the outer wall of the liposome.
摘要:
A construct that comprises a base material and a polyhydroxyalkanoate, wherein at least a part of the base material is coated with the polyhydroxyalkanoate, and the polyhydroxyalkanoate comprises a 3-hydroxyalkanoic acid unit other than 3-hydroxypropionic acid unit, 3-hydroxy-n-butyric acid unit, and 3-hydroxy-n-valeric acid unit.In addition, an electrostatic charge image developing toner allows to design the toner characteristics such as chargeability, flowability, stability in time and environmental stability uniform among the toners of different colors. The toner has a small particle size enough for enabling uniform dispersion and being excellent in color saturation and transparency. The toner also shows higher contribution to the environmental security. The toner includes a coloring agent of which at least a part of the surface is covered with polyhydroxyalkanoate (PHA). The toner is produced by dispersing the coloring agent in aqueous medium, then fixing PHA synthesizing enzyme to the coloring agent dispersed in the aqueous medium, then adding 3-hydroxyacyl CoA, and executing a PHA synthesizing reaction to cover at least a part of the surface of the coloring agent with PHA. The toner thus obtained is used for an image forming method.