Effects of culture conditions of immobilized recombinant Escherichia coli on cyclodextrin glucanotransferase (CGTase) excretion and cell stability
The targeting of recombinant proteins for excretion into culture medium presents significant advan-tages over cytoplasmic expression. However, during the excretion of recombinant protein, caution must be taken in order to avoid cell lysis due to pressure build-up through overproduction of the expres...
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| Format: | Article |
| Language: | English |
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Elsevier Ltd.
2016
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| Online Access: | http://eprints.uthm.edu.my/4189/ http://eprints.uthm.edu.my/4189/1/AJ%202016%20%2823%29.pdf |
| _version_ | 1848888220097445888 |
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| author | Mohd Fuzi/, Siti Fatimah Zaharah Che Man, Rohaida Ismail, Ahmad Fauzi Ghazali, Nazlee Faisal Md Illias, Rosli |
| author_facet | Mohd Fuzi/, Siti Fatimah Zaharah Che Man, Rohaida Ismail, Ahmad Fauzi Ghazali, Nazlee Faisal Md Illias, Rosli |
| author_sort | Mohd Fuzi/, Siti Fatimah Zaharah |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | The targeting of recombinant proteins for excretion into culture medium presents significant advan-tages over cytoplasmic expression. However, during the excretion of recombinant protein, caution must be taken in order to avoid cell lysis due to pressure build-up through overproduction of the expressed recombinant protein in the periplasmic space. In the present study, recombinant Escherichia coli express-ing cyclodextrin glucanotransferase (CGTase) was immobilized by adsorption and entrapment in a porous hollow fiber membrane. The effects of culture conditions (post induction time, agitation rate and pH) on CGTase excretion, cell lysis and plasmid stability of immobilized cells were studied. The optimum post induction time, agitation rate and pH were found to be 24 h, 200 rpm and pH 9, respectively. The immo-bilized cells exhibited a 2.8–4.6-fold increase in CGTase excretion, a 16–95% reduction of cell lysis and a 323–464% increase in plasmid stability compared with free cells. Hence, immobilizing E. coli using a porous hollow fiber membrane proved to be valuable for the excretion of a recombinant protein and increased cell viability. |
| first_indexed | 2025-11-15T20:06:49Z |
| format | Article |
| id | uthm-4189 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:06:49Z |
| publishDate | 2016 |
| publisher | Elsevier Ltd. |
| recordtype | eprints |
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| spelling | uthm-41892021-11-28T06:53:04Z http://eprints.uthm.edu.my/4189/ Effects of culture conditions of immobilized recombinant Escherichia coli on cyclodextrin glucanotransferase (CGTase) excretion and cell stability Mohd Fuzi/, Siti Fatimah Zaharah Che Man, Rohaida Ismail, Ahmad Fauzi Ghazali, Nazlee Faisal Md Illias, Rosli QD Chemistry The targeting of recombinant proteins for excretion into culture medium presents significant advan-tages over cytoplasmic expression. However, during the excretion of recombinant protein, caution must be taken in order to avoid cell lysis due to pressure build-up through overproduction of the expressed recombinant protein in the periplasmic space. In the present study, recombinant Escherichia coli express-ing cyclodextrin glucanotransferase (CGTase) was immobilized by adsorption and entrapment in a porous hollow fiber membrane. The effects of culture conditions (post induction time, agitation rate and pH) on CGTase excretion, cell lysis and plasmid stability of immobilized cells were studied. The optimum post induction time, agitation rate and pH were found to be 24 h, 200 rpm and pH 9, respectively. The immo-bilized cells exhibited a 2.8–4.6-fold increase in CGTase excretion, a 16–95% reduction of cell lysis and a 323–464% increase in plasmid stability compared with free cells. Hence, immobilizing E. coli using a porous hollow fiber membrane proved to be valuable for the excretion of a recombinant protein and increased cell viability. Elsevier Ltd. 2016 Article PeerReviewed text en http://eprints.uthm.edu.my/4189/1/AJ%202016%20%2823%29.pdf Mohd Fuzi/, Siti Fatimah Zaharah and Che Man, Rohaida and Ismail, Ahmad Fauzi and Ghazali, Nazlee Faisal and Md Illias, Rosli (2016) Effects of culture conditions of immobilized recombinant Escherichia coli on cyclodextrin glucanotransferase (CGTase) excretion and cell stability. Process Biochemistry, 51. pp. 474-483. ISSN 1359-5113 http://dx.doi.org/10.1016/j.procbio.2016.01.002 |
| spellingShingle | QD Chemistry Mohd Fuzi/, Siti Fatimah Zaharah Che Man, Rohaida Ismail, Ahmad Fauzi Ghazali, Nazlee Faisal Md Illias, Rosli Effects of culture conditions of immobilized recombinant Escherichia coli on cyclodextrin glucanotransferase (CGTase) excretion and cell stability |
| title | Effects of culture conditions of immobilized recombinant Escherichia coli on cyclodextrin glucanotransferase (CGTase) excretion and cell stability |
| title_full | Effects of culture conditions of immobilized recombinant Escherichia coli on cyclodextrin glucanotransferase (CGTase) excretion and cell stability |
| title_fullStr | Effects of culture conditions of immobilized recombinant Escherichia coli on cyclodextrin glucanotransferase (CGTase) excretion and cell stability |
| title_full_unstemmed | Effects of culture conditions of immobilized recombinant Escherichia coli on cyclodextrin glucanotransferase (CGTase) excretion and cell stability |
| title_short | Effects of culture conditions of immobilized recombinant Escherichia coli on cyclodextrin glucanotransferase (CGTase) excretion and cell stability |
| title_sort | effects of culture conditions of immobilized recombinant escherichia coli on cyclodextrin glucanotransferase (cgtase) excretion and cell stability |
| topic | QD Chemistry |
| url | http://eprints.uthm.edu.my/4189/ http://eprints.uthm.edu.my/4189/ http://eprints.uthm.edu.my/4189/1/AJ%202016%20%2823%29.pdf |