パンダから分離した耐熱性酵素群を産生する高温細菌による生ゴミ処理の試み Microbial Treatment of Kitchen Refuse with Enzyme-Producing Thermophilic Bacteria from Giant Panda Feces

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To establish an efficient method for the microbial treatment of kitchen refuse, experiments were performed to isolate heat-stable multi-enzyme-producing thermophilic bacteria and to verify functional activities of the isolates for the complete decomposition of kitchen refuse. Five Bacillus strains-B.amyloliquefaciens FTP148, B.amyloliquefaciens FTP2414, B.subtilis FTP237, B.Licheniformis FTP136, and B.licheniformis FTP2530-were successfully isolated from feces of the Giant Panda. The strains showed efficient growth at incubation temperatures between 45℃ and 60℃ and produced amylase, protease, and lipase. The highest activities of the amylase and protease produced by the strains at the optimal growth temperature were obtained at reaction temperatures between 50℃ and 60℃. The amylase and protease activities were stable up to maximum temperatures of 75℃ and 70℃, respectively; after incubation at 60℃ for 3 h, 59% and 40%, respectively, of the initial activity remained. Using a commercial waste-treatment device, kitchen refuse was treated with the five strains with the following results. When 1 kg per day was treated for 4 weeks, a total of 24 kg of mixed refuse consisting of green vegetables and fish remains as well as raw and/or fried potatoes was reduced to only 0.98 kg and a final digestive rate of 96% was obtained. It is noteworthy that the internal temperature of the compost mass reached a peak of 72℃. These results indicate that the novel thermophilic bacterial strains isolated from Giant Panda feces may be useful for high-performance waste treatment at a high temperature of 65℃.

収録刊行物

  • 生物工学会誌

    生物工学会誌 79(12), 463-469, 2001-12-15

    日本生物工学会

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各種コード

  • NII論文ID(NAID)
    110002933483
  • NII書誌ID(NCID)
    AN10401118
  • 本文言語コード
    JPN
  • 資料種別
    Journal Article
  • ISSN
    09193758
  • NDL 記事登録ID
    6029802
  • NDL 雑誌分類
    ZP15(科学技術--化学・化学工業--醗酵・微生物工学)
  • NDL 請求記号
    Z17-395
  • データ提供元
    CJP書誌  NDL  NII-ELS  IR 
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