Abstract: The present invention relates to a novel microbial strain, Alteromonas sp. SN2 (KCTC11700BP) having an activity for degrading polycyclic aromatic hydrocarbon (PAH), a bioremediation process of polycyclic aromatic hydrocarbon (PAH) contaminants, comprising contacting a microbial strain Alteromonas sp. with PAH, and a composition for purifying polycyclic aromatic hydrocarbon (PAH) contaminants, comprising a microbial strain Alteromonas sp. It is advantageous that the present invention may be suitably utilized in treatment or remediation of oil contaminants, particularly naphthalene soil contaminants without production of a secondary contaminant source. As the strain and bioremediation process of this invention could be industrially utilized through low-cost and environment-friendly process, the present technology also may be carried out much more economically and efficiently than conventional technologies such as thermal technology, solidification technology, and vapor extraction technology.

Abstract: The present invention relates to a novel microbial strain, Alteromonas sp. SN2 (KCTC11700BP) having an activity for degrading polycyclic aromatic hydrocarbon (PAH), a bioremediation process of polycyclic aromatic hydrocarbon (PAH) contaminants, comprising contacting a microbial strain Alteromonas sp. with PAH, and a composition for purifying polycyclic aromatic hydrocarbon (PAH) contaminants, comprising a microbial strain Alteromonas sp. It is advantageous that the present invention may be suitably utilized in treatment or remediation of oil contaminants, particularly naphthalene soil contaminants without production of a secondary contaminant source. As the strain and bioremediation process of this invention could be industrially utilized through low-cost and environment-friendly process, the present technology also may be carried out much more economically and efficiently than conventional technologies such as thermal technology, solidification technology, and vapor extraction technology.

Abstract: The present invention relates to a novel obligately symbiotic thermophile Symbiobacterium toebii SC-1 (Accession NO: KCTC 0685BP), and a thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase produced by Symbiobacterium toebii SC-1. The present invention also relates to a pure culture method of Symbiobacterium toebii SC-1, a method of growth measurement for Symbiobacterium toebii SC-1 and its relative symbiotic bacteria showing low-growth yield using nitrate respiration, and a screening method of relative symbiotic strains of Symbiobacterium toebii SC-1 from the environment using a specific antibody to it. Therefore, the thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase produced by Symbiobacterium toebii SC-1 in this invention can provide more stable catalysts in enzymatic biotransformation processes which enzymatically produce valuable medico-amino acids 3,4-dehydroxy-L-phenylalanine (L-DOPA) and L-tryptophan.

Abstract: The present invention relates to a novel obligately symbiotic thermophile Symbiobacterium toebii SC-1(Accession NO: KCTC 0685BP), and a thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase produced by Symbiobacterium toebii SC-1. The present invention also relates to a pure culture method of Symbiobacterium toebii SC-1, a method of growth measurement for Symbiobacterium toebu SC-1 and its relative symbiotic bacteria showing low-growth yield using nitrate respiration, and a screening method of relative symbiotic strains of Symbiobacterium toebii SC-1 from the environment using a specific antibody to it. Therefore, the thermostable L-tyrosine phenol-lyase and L-tryptophan indole-lyase produced by Symbiobacterium toebii SC-1 in this invention can provide more stable catalysts in enzymatic biotransformation processes which enzymatically produce valuable medico-amino acids 3,4-dehydroxy-L-phenylalanine (L-DOPA) and L-tryptophan.