Cellulase production from spent sulfite liquor and paper-mill waste fiber
Conference
·
OSTI ID:431594
- Shandong Univ. (China)
Since a high proportion of the overall cost of the conversion of cellulosics to useful products is the expense of cellulose production (1), it is desirable to develop new processes for producing large amounts of cellulase inexpensively. So far, most of the research work on cellulose production has been carried out using milled cellulose powder and inorganic salts as substrates, which significantly increases the cost of enzyme production. In order to reduce the cost of raw materials, we tried to develop from industrial wastes a new medium for the production of cellulose. In this report, we describe a simple method by which an all-waste medium, which was composed of spent ammonium sulfite liquor and cellulosic waste of a paper mill, and a catabolite derepression mutant of Penicillium decumbens were used to produce the enzyme efficiently.
- Research Organization:
- Oak Ridge National Lab., TN (United States); Badger Engineers, Inc., Tampa, FL (United States); Solar Energy Research Inst., Golden, CO (United States)
- OSTI ID:
- 431594
- Report Number(s):
- CONF-900512--
- Country of Publication:
- United States
- Language:
- English
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