Effect of pH and agitation on growth of bacillus subtilis
The effect of initial pH of medium (6.0,6.5 and 7.2) and agitation (100,200 and 300 rpm) on growth of oxygen sensitive culture of Bacillus subtilis were studied using shake flask cultures. Two type of media used were complex medium (CM) and well defined medium (WDM3). The effect of both parameters a...
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Universiti Kebangsaan Malaysia
1999
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ukm-37662012-05-02T09:55:57Z http://journalarticle.ukm.my/3766/ Effect of pH and agitation on growth of bacillus subtilis Noorhisham Tan Kofli, Mohd. Sahaid Kalil, The effect of initial pH of medium (6.0,6.5 and 7.2) and agitation (100,200 and 300 rpm) on growth of oxygen sensitive culture of Bacillus subtilis were studied using shake flask cultures. Two type of media used were complex medium (CM) and well defined medium (WDM3). The effect of both parameters and types of media on production of acetoin and 2,3-butanediol were also studied. The maximum growth was detected in experiment with agitation at 300 rpm and pH 6.5 for both CM (2.87 g/l dry weight) and WDM3 (3.33 g/l dry weight). The use of WDM3 gave higher total products (acetoin+butanediol) concentration (0.67 g/l) compare to CM (0.44 g/l) Universiti Kebangsaan Malaysia 1999 Article PeerReviewed Noorhisham Tan Kofli, and Mohd. Sahaid Kalil, (1999) Effect of pH and agitation on growth of bacillus subtilis. Sains Malaysiana, 28 . pp. 49-57. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol28_1999/vol28_99page49-57.html |
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Digital Repository |
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Local University |
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Universiti Kebangasaan Malaysia |
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UKM Institutional Repository |
| collection |
Online Access |
| description |
The effect of initial pH of medium (6.0,6.5 and 7.2) and agitation (100,200 and 300 rpm) on growth of oxygen sensitive culture of Bacillus subtilis were studied using shake flask cultures. Two type of media used were complex medium (CM) and well defined medium (WDM3). The effect of both parameters and types of media on production of acetoin and 2,3-butanediol were also studied. The maximum growth was detected in experiment with agitation at 300 rpm and pH 6.5 for both CM (2.87 g/l dry weight) and WDM3 (3.33 g/l dry weight). The use of WDM3 gave higher total products (acetoin+butanediol) concentration (0.67 g/l) compare to CM (0.44 g/l) |
| format |
Article |
| author |
Noorhisham Tan Kofli, Mohd. Sahaid Kalil, |
| spellingShingle |
Noorhisham Tan Kofli, Mohd. Sahaid Kalil, Effect of pH and agitation on growth of bacillus subtilis |
| author_facet |
Noorhisham Tan Kofli, Mohd. Sahaid Kalil, |
| author_sort |
Noorhisham Tan Kofli, |
| title |
Effect of pH and agitation on growth of bacillus subtilis |
| title_short |
Effect of pH and agitation on growth of bacillus subtilis |
| title_full |
Effect of pH and agitation on growth of bacillus subtilis |
| title_fullStr |
Effect of pH and agitation on growth of bacillus subtilis |
| title_full_unstemmed |
Effect of pH and agitation on growth of bacillus subtilis |
| title_sort |
effect of ph and agitation on growth of bacillus subtilis |
| publisher |
Universiti Kebangsaan Malaysia |
| publishDate |
1999 |
| url |
http://journalarticle.ukm.my/3766/ http://journalarticle.ukm.my/3766/ |
| first_indexed |
2023-09-18T19:39:41Z |
| last_indexed |
2023-09-18T19:39:41Z |
| _version_ |
1777405506993782784 |