Isolation and Characterization of a Novel Aspergillus tubingensis with a Hydrolyzing Activity of Cellulose-pectin Complex

섬유소-펙틴 분해력이 있는 새로운 Aspergillus tubingensis의 분리와 특성 규명

  • 김영민 (한남대학교 자연과학부 생명과학과) ;
  • 서원숙 (한남대학교 자연과학부 생명과학과) ;
  • 홍진영 (한남대학교 자연과학부 생명과학과) ;
  • 최홍서 (한남대학교 자연과학부 생명과학과) ;
  • 김주환 (한남대학교 자연과학부 생명과학과)
  • Published : 2003.06.01

Abstract

In order to isolate and characterize a novel fungal strain capable of producing cellulase, each samples of the old rice straw, soil, and the old tree were screened by congo red test. One of the fungi screened has been identified as Aspergillus tubingensis strain from the results of the phylogenic analysis based on partial DNA sequence and the basis of its biochemical properties. A carboxymethyl cellulase activity of the strain was higher than that of A. oryzae KCTC 6291. In CMCase activity measurement, it wasn't sensitive about pH 2.0, 3.0, 4.0, but the enzyme was more stable than A. oryzae under the various pH and temperature conditions and the enzyme activity was more similar to neutrality and alkali. Therefore, it could be suggested that the isolated strain has a potential possibility for the developing of the probiotics.

Keywords

Cellulase;cellulose;probiotics;Aspergillus tubingensis

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