Title:
BACTERIUM AEROBICALLY DEGRADING ORGANIC CHLORINE COMPOUNDS IN SOIL, METHOD FOR ACCUMULATING OR ISOLATING THE BACTERIUM AND SUPPORT CARRYING THIS BACTERIUM
Document Type and Number:
WIPO Patent Application WO/1999/060098
Kind Code:
A1
Abstract:
A technique for accumulating and isolating a bacterium capable of degrading a hardly degradable organic chlorine-based pesticide PCNB by improving the existing soil percolation method, and the bacterium capable of efficiently degrading/processing PCNB. To soil containing the organic chlorine-based pesticide PCNB are added pieces of a porous material having a number of pores and being superior in the PCNB-adsorbability to the soil to form an accumulation soil layer (2). Next, an inorganic salt medium (3) utilizing PCNB alone as the carbon source and the nitrogen source is percolated through the soil layer (2) so that an aerobic bacterium $i(Burkholderia cepacia) is accumulated on the porous material pieces.
Inventors:
Takagi, Kazuhiro (No.101, 11-916, Namiki 4-chome Tsukuba-shi Ibaraki, 305-0044, JP)
Yoshioka, Yuuichi (2879-15, Ikku Kochi-shi Kochi, 780-8130, JP)
Yoshioka, Yuuichi (2879-15, Ikku Kochi-shi Kochi, 780-8130, JP)
Application Number:
PCT/JP1999/002420
Publication Date:
November 25, 1999
Filing Date:
May 11, 1999
Export Citation:
Assignee:
DIRECTOR GENERAL OF NATIONAL INSTITUTE OF AGRO-ENVIRONMENTAL SCIENCES, THE MINISTRY OF AGRICULTURE, FORESTRY AND FISHERIES OF JAPAN (1-1 Kannondai 3-chome Tsukuba-shi Ibaraki, 305-8604, JP)
TOYO DENKA KOGYO CO., LTD. (2-25, Hagi-machi 2-chome Kochi-shi Kochi, 780-8006, JP)
Takagi, Kazuhiro (No.101, 11-916, Namiki 4-chome Tsukuba-shi Ibaraki, 305-0044, JP)
Yoshioka, Yuuichi (2879-15, Ikku Kochi-shi Kochi, 780-8130, JP)
TOYO DENKA KOGYO CO., LTD. (2-25, Hagi-machi 2-chome Kochi-shi Kochi, 780-8006, JP)
Takagi, Kazuhiro (No.101, 11-916, Namiki 4-chome Tsukuba-shi Ibaraki, 305-0044, JP)
Yoshioka, Yuuichi (2879-15, Ikku Kochi-shi Kochi, 780-8130, JP)
International Classes:
A62D3/00; A62D3/02; B09C1/10; C12N1/20; C12R1/01; A62D3/00; B09C1/10; C12N1/20; (IPC1-7): C12N1/20; B09B3/00; B09C1/10
Attorney, Agent or Firm:
Ohtake, Seigo (S. Ohtake & Associates Dai 2 Toranomon Denki Building 1-10, Toranomon 3-chome Minato-ku Tokyo, 105-0001, JP)
Download PDF: