Hierarchical porous carbons (HPCs) have been successfully prepared by a facile carbonization and subsequent CO2 activation process using corncob as a natural carbon precursor and Mg(C2H3O2)2 as a MgO nano-template precursor. The prepared corncob-based hierarchical porous carbons (C-HPCs) with desirable micropores and mesopores feature the excellent absorbency of gas (i.e., CO2 and CH4) and solution (i.e., methylene blue (MB)). Increasing the ratio of Mg(C2H3O2)2/corncob enlarged the specific surface area up to 1004 m2/ g, micropore and mesopore volumes, CO2, CH4, and MB adsorption capacities (112, 31 and 230 mg/g after 325 min, respectively). The results indicated that the pore structures of C-HPCs can be easily and suitably controlled by the amount of the template precursor and CO2 activation effecting concurrently, which leads to fascinating adsorption capacity for CO2, CH4, and MB.

느타리버섯 수확후 배지의 가축사료화가 가능하도록 주재료로 콘코브를 사용하여 적합한 영양원을 선발하고자 하였다. 시험에 사용된 영양원 가운데 질소함량은 채종박(7.6%)>케이폭박(6.4%)>밀기울(2.7%)순이고, 조지방함량은 밀기울(2.7%)>케이폭박(2.4%)>채종박(1.3%)>면실박(0.8%)로 나타났다. 영양원별 혼합배지의 이화학적 특성결과 C/N율은 18~20, 용적밀도 0.27~0.28g/cm3, 공극률 73.1~74.8로 처리간의 차이가 없었으며, 병당 수량은 케이폭박 첨가구(케이폭박 단용, 면실박+케이폭박(1:1) 혼용, 케이폭박+밀기울(1:1) 혼용)가 153~158g으로 대조구(면실박, 150g)와 차이가 없는 것으로 나타났고, 그러나 채종유박은 초발이 소요일수도 1일 늦고 수량도 상대적으로 낮은 것으로 나타났다. 케이폭박 처리구의 수확후 배지의 사료적 가치를 분석결과 58.3%로 면실박보다 높은것으로 나타났다.

For diversification of materials for sawdust cultivation of Lentinula edodes, this study was carried out to examine adding effects of corncob and cottonseed meal on sawdust cultivation. All treatments of corncob except 100% corncob have produced fruiting-bodies. Mushroom productivity of the fungus was decreased from 174g to 45g per 2kg sawdust-based substrate in proportion to increasing corncob contents in sawdust cultivation. Meanwhile, in treatments including less than 20% cottonseed meal, the mycelial growth of the fungus was similar to control. But, the other treatments were not suitable for the mycelial growth of fungus on sawdust-based substrate. All treatments of cottonseed meal did not produce the fruiting-body of the fungus.