Cellulase production induced by carbon sources derived from waste newspaper
| Autor: | Shu Chen, Morris Wayman |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
biology
Chemistry Starch business.industry Trichoderma longibrachiatum chemistry.chemical_element Bioengineering Cellulase biology.organism_classification Sorbose Applied Microbiology and Biotechnology Biochemistry Biotechnology chemistry.chemical_compound Hydrolysis biology.protein Fermentation Food science business Carbon Trichoderma reesei |
| Zdroj: | Process Biochemistry. 26:93-100 |
| ISSN: | 1359-5113 |
| DOI: | 10.1016/0032-9592(91)80023-i |
| Popis: | Inducers derived from waste newspaper (or discarded office paper) were investigated for their use in cellulase production by T. reesei . Partially enzymatically saccharified newspaper was found to be most effective. When 1·0 g newspaper and 0·07 g sorbose were used for cellulase productions, the cellulases so produced after 6 days of fermentation saccharified 8·0 g waste white office paper in 9·34% suspension, resulting in 5·4 g fermentable sugars, or 6·3 g fermentable sugars with supplementation of β-glucosidase. Additional cellulases were produced from the cells and residual newspaper separated from the sixth day fermentation broth, and were effective in saccharifying another 8·0 g office paper. A total yield of 10–11 g fermentable sugars was obtained, from a total of 16 g office paper, being saccharified by the cellulase induced by 1 g partially saccharified newspaper. Effects of metabolizability of the inducers and addition of sorbose on cellulase production, kinetic behaviour of cellulase production, and comparison with commercial cellulases are presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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