섬유

modification of paper properties by the pretreatment of pulp with saccharomonospora viridis xylanase

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 308
the thermophilic actinomycete saccharomonospora viridis was found to produce extracellular xylanase activity in the absence of detectable activity against cellulose. this property was exploited by the application of crude enzyme preparations to birchwood pulp and resulted in the selective removal of approximately 20 of the total xylan present. paper handsheets prepared from pulp treated in this way demonstrated modifications in a number of physical properties, of which a decrease in burst and long-span tensile strength were the most significant. the results, together with those on the treatment of cotton pulp with s. viridis xylanase and a commercial cellulase, suggest that specific removal of xylan reduces the extent of interfiber bonding but does not significantly weaken the fibers themselves. (edited author abstract) 18 refs
이전글 다음글 목록