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Critical importance of moisture content of the medium in alpha-amylase production by Bacillus licheniformis M27 in a solid-state fermentation system.
Ramesh, M. V. and Lonsane, B. K. (1990) Critical importance of moisture content of the medium in alpha-amylase production by Bacillus licheniformis M27 in a solid-state fermentation system. Applied Microbiology and Biotechnology, 33 (5). 501-505 ; 19 ref..
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Appl Microbiol Biotechnol (1990) 33501-505.pdf - Published Version Restricted to Registered users only Download (594kB) | Request a copy |
Abstract
A large reduction (about 30-78%) was seen in production of alpha-amylase by Bacillus licheniformis M27 in standardized wheat bran medium under solid-state fermentation when the moisture content of the medium was higher than the standardized value (65%). A surge in enzyme production in the first 24 h of fermentation was observed in media with 75 and 85% moisture. The role of decreased oxygen transfer in reducing enzyme titres by about 78% in medium containing 95% moisture was evident, since the enzyme titre could be increased by agitating the medium during fermentation. No such limitation in oxygen transfer was evident in medium containing 65% moisture, even when incubated under static conditions or when the flask was capped by aluminium foil. The data indicate the importance of moisture content in the medium for alpha-amylase production by B. licheniformis M27 in solid-state fermentation systems. [From En summ.]
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | AMYLASES-; BACILLUS-; BACTERIA-; FERMENTATION-; GLYCOSIDASES-; MICROBIOLOGICAL-TECHNIQUES; MOISTURE-CONTENT; alpha-AMYLASES; CARBOHYDRASES-; MEDIA- |
| Subjects: | 500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology > 02 Bacteriology 600 Technology > 05 Chemical engineering > 04 Fermentation Technology |
| Divisions: | Fermentation Technology and Bioengineering |
| Depositing User: | Food Sci. & Technol. Information Services |
| Date Deposited: | 26 Feb 2018 10:48 |
| Last Modified: | 26 Feb 2018 10:48 |
| URI: | http://ir.cftri.res.in/id/eprint/8016 |
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