The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Studies on the Cultural Characteristics of Cellulase Production by Roseofomes subflexibilis

Roseofomes subflexibilis로부터 Cellulase 생산을 위한 배양학적 성질

  • 장형수 (상지대학교 이공과대학 식품영양학과)
  • Published : 2003.08.30
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Abstract

For the purpose of utilizing cellulose resources by cellulolytic enzymes of Roseofomes subflexibilis, it's cultural conditions for the production of cellulolytic enzymes in synthetic media were investigated. The results obtained were summarized as follows : The optimum temperature and pH for the enzyme production were $30^{\circ}C$ and pH 4.0, respectively. Among the carbon sources, glucose was good for the production of cellulase. The optimum concentration of saccharose as 1.2%. As a organic nitrogen source, yeast extract was good for the mycelial growth. The optimum concentration of yeast extract as 1.5%. As a inorganic nitrogen source, $NH_{4}H_{2}PO_{4}$ was good for the mycelial growth. The optimum concentration of $NH_{4}H_{2}PO_{4}$ were 1.1%. The mineral salt of $Al_{2}(SO_{4})_{3}$ was effective and the optimum concentration was 0.1 M.

천연자원인 cellulose를 이용하기 위하여 섬유소분해효소의 생산성이 강한 Roseofomes subflexibilis의 배양학적 특성을 조사한 결과는 다음과 같다. 1.섬유소분해효소의 생산 및 균사체 생장에 적합한 탄소원은 glucose인 것으로 나타났으며, 균사체배양의 탄소원은 saccharose로 최적농도는 1.2%였다. 2. 균사체배양의 유기질소원은 yeast extract이었으며. 최적농도는 1.5%이었다. 또한 무기질소원은 $NH_{4}H_{2}PO_{4}$를 잘 이용하는 것으로 나타났고, 최적농도는 1.1% 첨가시 균사체의 생장이 좋았다. 3. 균사체배양의 아미노산의 영향을 조사한 결과 aspartic acid가 가장 좋았으며, 최적농도는 0.1%이었다. cysteine 첨가시 효소생산과 균사체의 생장 모두에서 효과적이었다. 4.무기염류의 영향은 $Al_{2}(SO_{4})_{3}$ 첨가시 효과적이었으며 최적농도는 0.1 M이었다. 5.배양온도는 $30{\circ}C$였으며, 최적 pH는 4.0인 것으로 나타났다.

Keywords

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