Physicochemical And Rheological Properties Of Fish Gelatin Modified By Tannic Acid
Fish gelatin was gaining attention as an alternative gelatin because mammalian gelatin faced social cultural issue and also health concern. However, fish gelatin has poor physicochemical and rheological properties. Therefore, the purpose of this study was to investigate the physicochemical and rheol...
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| Format: | Monograph |
| Language: | English |
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Universiti Sains Malaysia
2021
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| Online Access: | http://eprints.usm.my/52140/ http://eprints.usm.my/52140/1/SAZEREEN%20BT%20AMIReprints.pdf |
| _version_ | 1848882175909298176 |
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| author | Amir, Sazereen |
| author_facet | Amir, Sazereen |
| author_sort | Amir, Sazereen |
| building | USM Institutional Repository |
| collection | Online Access |
| description | Fish gelatin was gaining attention as an alternative gelatin because mammalian gelatin faced social cultural issue and also health concern. However, fish gelatin has poor physicochemical and rheological properties. Therefore, the purpose of this study was to investigate the physicochemical and rheological properties of fish gelatin treated with tannic acid at different concentration which is 0%, 2%, 4% and 6%. The physicochemical and rheological properties such as colour, viscosity, gel strength, flow and viscoelastic properties of gelatin was observed. Colour measurement shows that there was decrease in lightness and increase in redness and yellowness of fish gelatin as the concentration of tannic acid increase that was treated with tannic acid because fish gelatin turned from pale yellow to dark brown due to tannic acid oxidation. FTIR analysis revealed increment in amide band region in treated fish gelatin indicating that oxidized tannic acid interacts with gelatin by covalent bonding with the amino group in gelatin. |
| first_indexed | 2025-11-15T18:30:45Z |
| format | Monograph |
| id | usm-52140 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:30:45Z |
| publishDate | 2021 |
| publisher | Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-521402022-03-31T15:28:58Z http://eprints.usm.my/52140/ Physicochemical And Rheological Properties Of Fish Gelatin Modified By Tannic Acid Amir, Sazereen T1-995 Technology(General) Fish gelatin was gaining attention as an alternative gelatin because mammalian gelatin faced social cultural issue and also health concern. However, fish gelatin has poor physicochemical and rheological properties. Therefore, the purpose of this study was to investigate the physicochemical and rheological properties of fish gelatin treated with tannic acid at different concentration which is 0%, 2%, 4% and 6%. The physicochemical and rheological properties such as colour, viscosity, gel strength, flow and viscoelastic properties of gelatin was observed. Colour measurement shows that there was decrease in lightness and increase in redness and yellowness of fish gelatin as the concentration of tannic acid increase that was treated with tannic acid because fish gelatin turned from pale yellow to dark brown due to tannic acid oxidation. FTIR analysis revealed increment in amide band region in treated fish gelatin indicating that oxidized tannic acid interacts with gelatin by covalent bonding with the amino group in gelatin. Universiti Sains Malaysia 2021-06 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/52140/1/SAZEREEN%20BT%20AMIReprints.pdf Amir, Sazereen (2021) Physicochemical And Rheological Properties Of Fish Gelatin Modified By Tannic Acid. Other. Universiti Sains Malaysia. (Submitted) |
| spellingShingle | T1-995 Technology(General) Amir, Sazereen Physicochemical And Rheological Properties Of Fish Gelatin Modified By Tannic Acid |
| title | Physicochemical And Rheological Properties Of Fish Gelatin Modified By Tannic Acid |
| title_full | Physicochemical And Rheological Properties Of Fish Gelatin Modified By Tannic Acid |
| title_fullStr | Physicochemical And Rheological Properties Of Fish Gelatin Modified By Tannic Acid |
| title_full_unstemmed | Physicochemical And Rheological Properties Of Fish Gelatin Modified By Tannic Acid |
| title_short | Physicochemical And Rheological Properties Of Fish Gelatin Modified By Tannic Acid |
| title_sort | physicochemical and rheological properties of fish gelatin modified by tannic acid |
| topic | T1-995 Technology(General) |
| url | http://eprints.usm.my/52140/ http://eprints.usm.my/52140/1/SAZEREEN%20BT%20AMIReprints.pdf |