The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Change of Chemical and Microbial Properties during Fermentation of Cotton Waste for Oyster Mushroom Cultivation

느타리 재배용 폐면 발효 중의 화학성 및 미생물 상의 변화

  • Jhune, Chang-Sung (Division of Applied Microbiology, National Institute of Agricultural Science and Technology, R.D.A.) ;
  • Jang, Kap-Yeul (Division of Applied Microbiology, National Institute of Agricultural Science and Technology, R.D.A.) ;
  • Cho, Soo-Muk (Division of Applied Microbiology, National Institute of Agricultural Science and Technology, R.D.A.) ;
  • Oh, Se-Jong (Division of Applied Microbiology, National Institute of Agricultural Science and Technology, R.D.A.) ;
  • Park, Jung-Sik (Division of Applied Microbiology, National Institute of Agricultural Science and Technology, R.D.A.) ;
  • Weon, Hang-Yeon (Division of Applied Microbiology, National Institute of Agricultural Science and Technology, R.D.A.)
  • 전창성 (농업과학기술원 응용미생물과) ;
  • 장갑열 (농업과학기술원 응용미생물과) ;
  • 조수묵 (농업과학기술원 응용미생물과) ;
  • 오세종 (농업과학기술원 응용미생물과) ;
  • 박정식 (농업과학기술원 응용미생물과) ;
  • 원항연 (농업과학기술원 응용미생물과)
  • Published : 2004.12.30
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Abstract

The changes of microflora and chemical characteristics during fermentation process of cotton waste for oyster mushroom cultivation were investigated with 5 l bench-scale reactors placed in an incubator at different temperatures ($40,\;50\;and\;60^{\circ}C$). Cotton waste was wetted to 70% moisture, and air flow rates to the substrate were 50, 100 and 300 cc/min. In processing of composting, the mesophilic bacterial population decreased sharply but thermophilic bacterial population increased. In case of fungi, both mesophilic and thermophilic population decreased. The daily $CO_2$ evolution showed little difference in all treatments, while $NH_3$ dropped sharply after 3 days. The desirable composting temperature and air flow based on the mycelial growth of oyster mushroom were $50^{\circ}C$ and 100 cc/min, respectively.

느타리 재배시 배지발효 조건이 배지내 이화학성분 및 미생물상에 미치는 영향을 조사한 결과는 다음과 같다. 소형발효기에서 온도와 통기량을 조절하여 배지내 이화학성 및 미생물상 변화를 관찰하였다. 그 결과, 혐기 발효시 pH는 호기발효보다 상당히 낮았으나 암모니아태 질소는 높았다. 이산화탄소 발생량은 발효 6일째까지 큰 변화가 없었으나 암모니아는 발효 초기에 다량 발생후 3일째에는 거의 발생되지 않았다. 발효가 진행될수록 세균의 경우 중온성은 감소하고 고온성은 증가하였으나 사상균은 고온 및 중온 모두 감소하였으며, 혐기발효시 호기발효보다 고온성 세균, 사상균은 현저히 감소하였다. 발효온도 별 배지의 느타리균사 생장속도는 $50^{\circ}C$에서 통기량을 100cc/min에서 발효시킨 배지에서 가장 좋았다.

Keywords

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