Immobilization Of β-Galactosidase Onto Activated Chitosan Support By Using Covalent Binding Method
The performance of immobilized β-galactosidase (β-Gal) onto chitosan support was studied in a batch process. The chitosan support was activated by using chemical agent which was glutaraldehyde solution. The main objective of this research was to investigate the suitable conditions in preparation o...
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| Format: | Monograph |
| Language: | English |
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Universiti Sains Malaysia
2018
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| Online Access: | http://eprints.usm.my/53696/ http://eprints.usm.my/53696/1/Immobilization%20Of%20%20%CE%B2-Galactosidase%20Onto%20Activated%20Chitosan%20Support%20By%20Using%20Covalent%20Binding%20Method_Nur%20Syahirah%20Sezale_K4_2018.pdf |
| _version_ | 1848882600843673600 |
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| author | Sezale, Nur Syahirah |
| author_facet | Sezale, Nur Syahirah |
| author_sort | Sezale, Nur Syahirah |
| building | USM Institutional Repository |
| collection | Online Access |
| description | The performance of immobilized β-galactosidase (β-Gal) onto chitosan support was studied in a batch process. The chitosan support was activated by using chemical agent which was glutaraldehyde solution. The main objective of this research
was to investigate the suitable conditions in preparation of β-Gal immobilization process that will produce greater β-Gal activity. During the preparation of immobilized β-Gal, the optimum conditions were obtained from Response Surface Methodology (RSM). The optimum conditions were found to be 2% and 10 mg/ml for glutaraldehyde and β-Gal concentrations, respectively, which has resulted in 65.52% for activity yield
meanwhile for immobilization yield, is 94.57%. The experimental results for investigation of effect of temperature on β-Gal activity, found that the optimum temperature at ℃ was obtained after β-Gal immobilization. However, it is so interesting that the immobilized β-Gal showed much better operational stability
referring to a broader thermal range as compared to free β-Gal. The activity of immobilized β-Gal increased at about more than 17% of its initial activity, meanwhile the activity of free β-Gal reduced at less than 15%. Higher stability of β-Gal will lead to a better reusability. The immobilized β-Gal can be reused for six cycles and retained approximately 50% of its initial activity. |
| first_indexed | 2025-11-15T18:37:30Z |
| format | Monograph |
| id | usm-53696 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:37:30Z |
| publishDate | 2018 |
| publisher | Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-536962022-07-28T09:26:30Z http://eprints.usm.my/53696/ Immobilization Of β-Galactosidase Onto Activated Chitosan Support By Using Covalent Binding Method Sezale, Nur Syahirah T Technology TP Chemical Technology The performance of immobilized β-galactosidase (β-Gal) onto chitosan support was studied in a batch process. The chitosan support was activated by using chemical agent which was glutaraldehyde solution. The main objective of this research was to investigate the suitable conditions in preparation of β-Gal immobilization process that will produce greater β-Gal activity. During the preparation of immobilized β-Gal, the optimum conditions were obtained from Response Surface Methodology (RSM). The optimum conditions were found to be 2% and 10 mg/ml for glutaraldehyde and β-Gal concentrations, respectively, which has resulted in 65.52% for activity yield meanwhile for immobilization yield, is 94.57%. The experimental results for investigation of effect of temperature on β-Gal activity, found that the optimum temperature at ℃ was obtained after β-Gal immobilization. However, it is so interesting that the immobilized β-Gal showed much better operational stability referring to a broader thermal range as compared to free β-Gal. The activity of immobilized β-Gal increased at about more than 17% of its initial activity, meanwhile the activity of free β-Gal reduced at less than 15%. Higher stability of β-Gal will lead to a better reusability. The immobilized β-Gal can be reused for six cycles and retained approximately 50% of its initial activity. Universiti Sains Malaysia 2018-06-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/53696/1/Immobilization%20Of%20%20%CE%B2-Galactosidase%20Onto%20Activated%20Chitosan%20Support%20By%20Using%20Covalent%20Binding%20Method_Nur%20Syahirah%20Sezale_K4_2018.pdf Sezale, Nur Syahirah (2018) Immobilization Of β-Galactosidase Onto Activated Chitosan Support By Using Covalent Binding Method. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Kimia. (Submitted) |
| spellingShingle | T Technology TP Chemical Technology Sezale, Nur Syahirah Immobilization Of β-Galactosidase Onto Activated Chitosan Support By Using Covalent Binding Method |
| title | Immobilization Of β-Galactosidase Onto Activated Chitosan Support By Using Covalent Binding Method |
| title_full | Immobilization Of β-Galactosidase Onto Activated Chitosan Support By Using Covalent Binding Method |
| title_fullStr | Immobilization Of β-Galactosidase Onto Activated Chitosan Support By Using Covalent Binding Method |
| title_full_unstemmed | Immobilization Of β-Galactosidase Onto Activated Chitosan Support By Using Covalent Binding Method |
| title_short | Immobilization Of β-Galactosidase Onto Activated Chitosan Support By Using Covalent Binding Method |
| title_sort | immobilization of β-galactosidase onto activated chitosan support by using covalent binding method |
| topic | T Technology TP Chemical Technology |
| url | http://eprints.usm.my/53696/ http://eprints.usm.my/53696/1/Immobilization%20Of%20%20%CE%B2-Galactosidase%20Onto%20Activated%20Chitosan%20Support%20By%20Using%20Covalent%20Binding%20Method_Nur%20Syahirah%20Sezale_K4_2018.pdf |