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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Hideno, Akihiro Inoue, Hiroyuki Tsukahara, Kenichiro Yano, Shinichi Fang, Xu Endo, Takashi Sawayama, Shigeki |
| Description | Country affiliation: Japan Author Affiliation: Hideno A ( Biomass Technology Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 3-11-32 Kagamiyama, Higashi-Hiroshima, Hiroshima 737-0046, Japan.) |
| Abstract | Cellulases and hemicellulases are key enzymes in the production of alternative fuels and chemicals from lignocellulosic biomass-an abundant renewable resource. Carbon source selection is an important factor in the production of cellulases and hemicellulases. Rice straw--a potential ethanol source--has recently gained considerable interest in Asian countries. Here, we investigated the production of cellulases by using rice straw subjected to various pretreatments as substrates in order to produce cellulases at low costs; we also identified the enzymes' characteristics. Rice straw cutter milled to <3mm was pretreated by wet disk milling, dry ball milling, or hot-compressed water treatment (HCWT). Pretreated rice straw and commercial cellulose, Solka Floc (SF), were used as carbon sources for cellulase production by the fungus Acremonium cellulolyticus. Filter paper cellulase, ß-xylanase, and ß-xylosidase production from ball- and disk-milled samples were higher than those from SF. Enzymatic activity was absent in cultures where HCWT rice straw was used as carbon source. Wet disk-milled rice straw cultures were more suitable for enzymatic hydrolysis of pretreated rice straw than SF cultures. Thus, wet disk milling may be a suitable pretreatment for producing substrates for enzymatic hydrolysis and generating inexpensive carbon sources for cellulase production. |
| File Format | HTM / HTML |
| ISSN | 01410229 |
| Issue Number | 2 |
| Volume Number | 48 |
| e-ISSN | 18790909 |
| Journal | Enzyme and Microbial Technology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2011-02-08 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Microbiology Discipline Biochemistry Discipline Biotechnology Acremonium Enzymology Cellulases Biosynthesis Glycoside Hydrolases Oryza Sativa Chemistry Metabolism Growth & Development Biomass Biotechnology Methods Cellulose Culture Media Ethanol Hydrolysis Lignin Evaluation Studies Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biochemistry Bioengineering Applied Microbiology and Biotechnology Biotechnology |
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