섬유

Bacteria Have Appetites for Plastics.

  • 출판일1996.06
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 500
The National Institute of Bioscience and Human Technology has discovered a bacteria that degrades polyvinyl alcohol (PVA) and a bacteria that breaks down polylactic acid. The bacteria may make it possible to dispose more efficiently of plastic products in an environmentally friendly way. PVA is used to prevent the fraying of textile fibers. The new bacteria, discovered in conjuction with Rakuto Kasei Industrial, can completely decompose PVA in concentrations of 0.2 percent in four days. Polylactic acid is synthesized using the byproducts of starch production. It is processed into film and fiber for such end uses as food containers and apparel. Before being released into the environment, polylactic acid must be hydrolyzed into lower molecular weights. The new bacteria, on the other hand, can decompose polylactic acid directly, breaking down 30 percent of the acid in four days.
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