Differential Scanning Calorimetry as tool in observing thermal and storage stability of recombinant Bromelain

It is important to know the thermal and storage behavior of produced protein for the purpose of storage, transport and shelve life during industrial application. Differential Scanning Calorimetry (DSC) is used to measure the thermal and storage stability of recombinant bromelain produced i...

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Main Authors: Ismail, Nurul Azira, Amid, Azura
Format: Proceeding Paper
Language:English
Published: 2011
Subjects:
Online Access:http://irep.iium.edu.my/7470/1/10.BPE1_pg414-460_7470.pdf
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author Ismail, Nurul Azira
Amid, Azura
author_facet Ismail, Nurul Azira
Amid, Azura
author_sort Ismail, Nurul Azira
collection IIUM
description It is important to know the thermal and storage behavior of produced protein for the purpose of storage, transport and shelve life during industrial application. Differential Scanning Calorimetry (DSC) is used to measure the thermal and storage stability of recombinant bromelain produced in our laboratory. Recombinant bromelain thermal and storage stability were measured and compared to the commercial bromelain. The purified recombinant bromelain was powderized using freeze drying method and its transition midpoint, crystalline and enthalpy were recorded. Recombinant bromelain is more stable than commercial bromelain at higher temperature but the stability reduced after 7 days of storage at 4oC. Moreover, its activity is lower than commercial at day 1 and 7. Higher energy is needed to break the bond between amino acid chains in recombinant bromelain showing by the enthalpy recorded suggesting that recombinant bromelain has good protein structure and conformation compared to commercial.
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spelling oai:generic.eprints.org:74702012-01-19T03:40:53Z http://irep.iium.edu.my/7470/ Differential Scanning Calorimetry as tool in observing thermal and storage stability of recombinant Bromelain Ismail, Nurul Azira Amid, Azura Q Science (General) It is important to know the thermal and storage behavior of produced protein for the purpose of storage, transport and shelve life during industrial application. Differential Scanning Calorimetry (DSC) is used to measure the thermal and storage stability of recombinant bromelain produced in our laboratory. Recombinant bromelain thermal and storage stability were measured and compared to the commercial bromelain. The purified recombinant bromelain was powderized using freeze drying method and its transition midpoint, crystalline and enthalpy were recorded. Recombinant bromelain is more stable than commercial bromelain at higher temperature but the stability reduced after 7 days of storage at 4oC. Moreover, its activity is lower than commercial at day 1 and 7. Higher energy is needed to break the bond between amino acid chains in recombinant bromelain showing by the enthalpy recorded suggesting that recombinant bromelain has good protein structure and conformation compared to commercial. 2011-05-17 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/7470/1/10.BPE1_pg414-460_7470.pdf Ismail, Nurul Azira and Amid, Azura (2011) Differential Scanning Calorimetry as tool in observing thermal and storage stability of recombinant Bromelain. In: 2nd International Conference on Biotechnology Engineering (ICBioE 2011), 17-19 May 2011, The Legend Hotel, Kuala Lumpur. http://www.iium.edu.my/icbioe/2011/
spellingShingle Q Science (General)
Ismail, Nurul Azira
Amid, Azura
Differential Scanning Calorimetry as tool in observing thermal and storage stability of recombinant Bromelain
title Differential Scanning Calorimetry as tool in observing thermal and storage stability of recombinant Bromelain
title_full Differential Scanning Calorimetry as tool in observing thermal and storage stability of recombinant Bromelain
title_fullStr Differential Scanning Calorimetry as tool in observing thermal and storage stability of recombinant Bromelain
title_full_unstemmed Differential Scanning Calorimetry as tool in observing thermal and storage stability of recombinant Bromelain
title_short Differential Scanning Calorimetry as tool in observing thermal and storage stability of recombinant Bromelain
title_sort differential scanning calorimetry as tool in observing thermal and storage stability of recombinant bromelain
topic Q Science (General)
url http://irep.iium.edu.my/7470/1/10.BPE1_pg414-460_7470.pdf
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