Biodegradation of Poly (L-lactic acid) Enhanced by Effective Microorganisms.

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  • OSAWA Satoshi
    Laboratory for Ecological Polymer and Organic Materials, Kanazawa Institute of Technology
  • NISHIKAWA Takeshi
    Laboratory for Ecological Polymer and Organic Materials, Kanazawa Institute of Technology
  • OGAWA Toshio
    Laboratory for Ecological Polymer and Organic Materials, Kanazawa Institute of Technology

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Other Title
  • 有用微生物群によるポリ乳酸の分解促進効果
  • ユウヨウ ビセイブツグン ニ ヨル ポリ ニュウサン ノ ブンカイ ソクシン コウカ

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Description

The mixture of photosynthesis bacteria, lactic acid bacteria, and yeast (EM) were added to gardening soil and manipulated compost system in order to enhance the biodegradation of poly (L-lactic acid) (PLA). In the presence of EM, the degradation was enhanced by 40 % in aerobic composting system at 36°C. It is noted that EM enhanced degradation of crystallite region at 50 °C. However, EM did not enhance the degradation of PLA in gardening soil.

Journal

  • Materials life

    Materials life 11 (3), 118-123, 1999

    MATERIALS LIFE SOCIETY, JAPAN

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