Nutritional factors affecting organic solvent-tolerant alkaline protease production by a new Bacillus cereus strain 146
An organic solvent-tolerant bacterium designated as 146 capable of producing an organic solvent-stable alkaline protease was isolated from contaminated soil of a wood factory. The strain was a Gram-positive, spore-forming, nitrate-positive, rod-shaped organism capable of hydrolysing gelatine, starch...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Springer
2006
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| Online Access: | http://psasir.upm.edu.my/id/eprint/7109/ http://psasir.upm.edu.my/id/eprint/7109/1/Nutritional%20factors%20affecting%20organic%20solvent-tolerant%20alkaline%20protease%20production%20by%20a%20new%20Bacillus%20cereus%20strain%20146.pdf |
| _version_ | 1848840504371838976 |
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| author | Shafee, Norazizah Tan, Chin Chin Mahamad, Shalihah Raja Abdul Rahman, Raja Noor Zaliha Basri, Mahiran Salleh, Abu Bakar |
| author_facet | Shafee, Norazizah Tan, Chin Chin Mahamad, Shalihah Raja Abdul Rahman, Raja Noor Zaliha Basri, Mahiran Salleh, Abu Bakar |
| author_sort | Shafee, Norazizah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | An organic solvent-tolerant bacterium designated as 146 capable of producing an organic solvent-stable alkaline protease was isolated from contaminated soil of a wood factory. The strain was a Gram-positive, spore-forming, nitrate-positive, rod-shaped organism capable of hydrolysing gelatine, starch, skim milk and identified as Bacillus cereus. Activity of the protease was drastically increased in the presence of 1–decanol, isooctane, n-dodecane and n-tetradecane, but reduced in the presence of ethyl acetate, benzene, toluene, 1-heptanol, ethylbenzene and hexane. The bacterium was shown to require lactose as a carbon source and peptone as a nitrogen source. The optimum fermentation condition for the production of alkaline protease was in the presence of beef and yeast extract. Optimum pH was determined to be at 10.0 at incubation temperature of 37 °C for 48 h. Results from the studies suggest that 146 is a new strain of Bacillus cereus capable of producing organic solvent-tolerant alkaline protease with potential use in industries. |
| first_indexed | 2025-11-15T07:28:24Z |
| format | Article |
| id | upm-7109 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:28:24Z |
| publishDate | 2006 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-71092016-09-26T08:37:02Z http://psasir.upm.edu.my/id/eprint/7109/ Nutritional factors affecting organic solvent-tolerant alkaline protease production by a new Bacillus cereus strain 146 Shafee, Norazizah Tan, Chin Chin Mahamad, Shalihah Raja Abdul Rahman, Raja Noor Zaliha Basri, Mahiran Salleh, Abu Bakar An organic solvent-tolerant bacterium designated as 146 capable of producing an organic solvent-stable alkaline protease was isolated from contaminated soil of a wood factory. The strain was a Gram-positive, spore-forming, nitrate-positive, rod-shaped organism capable of hydrolysing gelatine, starch, skim milk and identified as Bacillus cereus. Activity of the protease was drastically increased in the presence of 1–decanol, isooctane, n-dodecane and n-tetradecane, but reduced in the presence of ethyl acetate, benzene, toluene, 1-heptanol, ethylbenzene and hexane. The bacterium was shown to require lactose as a carbon source and peptone as a nitrogen source. The optimum fermentation condition for the production of alkaline protease was in the presence of beef and yeast extract. Optimum pH was determined to be at 10.0 at incubation temperature of 37 °C for 48 h. Results from the studies suggest that 146 is a new strain of Bacillus cereus capable of producing organic solvent-tolerant alkaline protease with potential use in industries. Springer 2006-03 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/7109/1/Nutritional%20factors%20affecting%20organic%20solvent-tolerant%20alkaline%20protease%20production%20by%20a%20new%20Bacillus%20cereus%20strain%20146.pdf Shafee, Norazizah and Tan, Chin Chin and Mahamad, Shalihah and Raja Abdul Rahman, Raja Noor Zaliha and Basri, Mahiran and Salleh, Abu Bakar (2006) Nutritional factors affecting organic solvent-tolerant alkaline protease production by a new Bacillus cereus strain 146. Annals of Microbiology, 56 (1). pp. 29-34. ISSN 1590-4261; ESSN: 1869-2044 http://link.springer.com/article/10.1007/BF03174966?view=classic 10.1007/BF03174966 |
| spellingShingle | Shafee, Norazizah Tan, Chin Chin Mahamad, Shalihah Raja Abdul Rahman, Raja Noor Zaliha Basri, Mahiran Salleh, Abu Bakar Nutritional factors affecting organic solvent-tolerant alkaline protease production by a new Bacillus cereus strain 146 |
| title | Nutritional factors affecting organic solvent-tolerant alkaline protease production by a new Bacillus cereus strain 146 |
| title_full | Nutritional factors affecting organic solvent-tolerant alkaline protease production by a new Bacillus cereus strain 146 |
| title_fullStr | Nutritional factors affecting organic solvent-tolerant alkaline protease production by a new Bacillus cereus strain 146 |
| title_full_unstemmed | Nutritional factors affecting organic solvent-tolerant alkaline protease production by a new Bacillus cereus strain 146 |
| title_short | Nutritional factors affecting organic solvent-tolerant alkaline protease production by a new Bacillus cereus strain 146 |
| title_sort | nutritional factors affecting organic solvent-tolerant alkaline protease production by a new bacillus cereus strain 146 |
| url | http://psasir.upm.edu.my/id/eprint/7109/ http://psasir.upm.edu.my/id/eprint/7109/ http://psasir.upm.edu.my/id/eprint/7109/ http://psasir.upm.edu.my/id/eprint/7109/1/Nutritional%20factors%20affecting%20organic%20solvent-tolerant%20alkaline%20protease%20production%20by%20a%20new%20Bacillus%20cereus%20strain%20146.pdf |