Microbial strain, method for biodegrading organic compounds and method for environmental remediation
AssigneeCanon Kabushiki Kaisha
InventorsChieko Mihara, Tetsuya Yano, Shinya Kozaki, Takeshi Imamura
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Abstract
A novel microbial strain JMC1 (FERM BP-5960) that it is a mutant strain derived from JM1 (FERM BP-5352) constitutively expressing oxygenase, and a method for biodegrading aromatic compounds and chlorinated organic compounds by using strain JMC1 as well as a method for environmental remediation which comprises a step of biodegrading contaminant in the environment by using strain JMC1. Aromatic compounds and/or chlorinated aliphatic hydrocarbon compounds contained in the environment can be removed at a low temperature by using the novel strain JMC1 without using any inducer substances.
Claims25
A bacterial strain JMC1 (FERM BP-5960), the strain JMC1 being a mutant strain derived from JM1 (FERM BP-5352) constitutively expressing oxygenase, wherein the strain JMC1 has an ability to proliferate and on and degrade an aromatic compound and a chlorinated aliphatic hydrocarbon compound constitutively at 4.degree. C.
A method of biodegrading an aromatic compound or a chlorinated aliphatic hydrocarbon compound at a temperature between 4.degree. C. and 15.degree. C., comprising the steps of:
- (a) contacting a bacterial strain JMC1 (FERM BP-5960) with the aromatic compound or the chlorinated aliphatic hydrocarbon compound, wherein the strain JMC1 is a mutant strain derived from strain JM1 (FERM BP-5352) constitutively expressing oxygenase and the strain JMC1 has an ability to proliferate on and degrade the aromatic compound and the chlorinated aliphatic hydrocarbon compound consitutively at 4.degree. C.;
- and thereby
- (b) degrading the aromatic compound or the chlorinated aliphatic hydrocarbon compound with the strain JMC1 (FERM BP-5960).
A process for remedying an environment contaminated with at least one of an aromatic compound and a chlorinated aliphatic hydrocarbon compound, the environment being at a temperature of between 4 and 15.degree. C., comprising the steps of:
- (a) introducing into the environment a bacterial strain JMC1 (FERM BP-5960), wherein the strain JMC1 is a mutant strain derived from strain JM1 (FERM BP-5352) constitutively expressing oxygenase, and the strain JMC1 has an ability to proliferate on and degrade the aromatic compound and the chlorinated aliphatic hydrocarbon compound constitutively at 4.degree. C.;
- and
- (b) degrading the aromatic compound or the chlorinated aliphatic hydrocarbon compound employing the strain JMC1 (FERM BP-5960).
Dependencies are inferred from the claim text.