Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference (한국펄프종이공학회:학술대회논문집)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
권호 표지

RECYCLING OF WASTEPAPER WITH ALKALINE ENZYME FROM COPRINACEAE SP.

  • Eom, Tae-Jin (Department of Wood Science and Technology, KyungPook National University) ;
  • Lee, Jung-Myoung (Department of Wood Science and Technology, KyungPook National University)
  • Published : 1999.04.01

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Abstract

Coprinus cinereus 2249 that is a kind of basidiomycetes constitutively produced alkaline carboxymethyl cellulase (CMCase), filter paper cellulase (FPase) and xylanase. Crude enzymes prepared with optimal conditions showed higher FPase activity than CMCase activity. The FPase was most active at pH 9 at 50$^{\circ}C$. When applied on deinking of the old newsprint (ONP), it increases the freeness and brightness due to effect of hydrolysis at 0.1% enzyme concentration. Also, The physical properties of deinked pulp were improved.

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