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Thesis Advisor李佐虎
Degree Grantor中国科学院研究生院
Other AbstractFor the request of large scale industrial design, the integration of technique and economic study on the new idea, new process and equipment are developed to break through the bottle neck of the economic and technique. The separation of tree component is essential. With analysis by IR, XPS, SEM, the study on the process of steam exploded separation was carry out to approve that 80% hemicellulose is self-hydrolysis and become water-solubility and then 75% lignin is decomposed and extracted by alcohol. With the new technique of pressure and temperature oscillation solid fermentation, the filter paper activity of cellulase is increased by about ten times and βGase activity approach to the level of FPA used the steam exploded wheat straw as substrate. The lower investment and production cost could be obtained by the technique. On the basis of the principle of period oscillation, it is overcome the temperature inconsistence between saccharification and fermentation using fed-batch and temperature oscillation. The result is the ethanol concentration of 5.4% and the yield of 0.22. Now the lignin enzyme production exists some problems that the fermentation period is long and the production cost is high, which use complex media and must add 3,4-dimethoxybenzyl alcohol. The solid state fermentation of lignin enzyme was investigated. Used the steam exploded wheat straw as substrate and without adding of 3,4-dimethoxybenzyl alcohol, the rates of production in LiP and MnP are 21.667U/L.h and 11.458U/L.h respectively. New ideas of lignocellulose biomass utilization were brought forward from the view point of green chemistry. The concept design and development models of ecological industry were investigated. We are facing with the researchful goal and task in lignocellulose utilization from the strategic altitude.
Document Type学位论文
Recommended Citation
GB/T 7714
陈洪章. 纤维质原料微生物转化与生物量全利用的研究[D]. 中国科学院研究生院,1998.
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纤维质原料微生物转化与生物量全利用的研究(15582KB) 限制开放CC BY-NC-SAApplication Full Text
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