Earticle

초록

영어

Changes in physical and chemical properties of oak sawdust were investigated by depth and time for 46 days during the fermentation process of 33 tons of the sawdust for oak mushroom cultivation. The degrees of change in the properties of the sawdust differed depending on the depth and fermentation period. Most of the physical-chemical properties except temperature and pH gradually changed during the fermentation. The temperature change was highly sensitive to the environment at the surface sawdust to 20 cm depth, while it gradually increased to the maximum 58.9oC at 40~100 cm depths in 12 days and slowly to the maximum at 150 cm depth in 24 days. The moisture content of the sawdust decreased gradually from 31% to 26.5~28.0% in 24 days. Of the chemical properties during the fermentation, pH generally rose from 5.2 to 5.6, but it decreased to 4.4~4.7 at 150 cm depth in 16 days. While the carbon content of the sawdust was 68~70% without significant change, nitrogen content increased from 0.22% to 0.25% and thus C/N ratio gradually lowered from 320 to 280. P content in the sawdust gradually increased from 0.005% to 0.022% for 46 days. Osmotic concentration of the hot water extract of the sawdust varied 41.5~44.2 mmol/kg without significant change by the depth and time. The starch particles within initial ray parenchyma cells of sawdust decreased and fungal hyphae formed on the surface of the sawdust granules and within xylem vessel cells in 35 days. The effect of the sawdust fermentation on oak mushroom cultivation needs continued research.

목차

ABSTRACT
 서론
 재료 및 방법
  참나무류 톱밥
  톱밥의 발효기간 및 적재 깊이별 온도와 함수율 변화
  톱밥의 발효기간 및 적재 깊이별 화학성
  톱밥조직 세포내 전분, 조직 및 균사 조사
 결과 및 고찰
  참나무톱밥 발효기간과 적재깊이별 온도와 수분함량 변화
  발효기간과 퇴적깊이에 따른 수분함량 변화
  발효 기간 및 적재 깊이에 따른 톱밥의 화학성 변화
  발효 기간 및 적재 깊이에 따른 톱밥의 T-C, T-N, P 함량 변화
  참나무 톱밥의 발효 기간 및 적재 깊이에 따른 열수추출액 농도의 변화
  참나무 발효 톱밥 내 전분 변화 및 분해균사 생장
 적요
 감사의 말씀
 참고문헌

저자

• 구창덕 [ Chang-Duck Koo | 충북대학교 산림학과 ] Corresponding author
• 이선정 [ Sun-Jeong Lee | 국립산림과학원 산림환경부 ]
• 이화용 [ Hwa-Yong Lee | 충북대학교 산림학과 ]
• 박용우 [ Yong-woo Park | 충북대학교 산림학과 ]
• 이희수 [ Hee-Su Lee | 충북대학교 산림학과 ]
• 김재수 [ Je-su Kim | 충북대학교 산림학과 ]

참고문헌