Effects of extraction time on the functional properties of silver catfish (Pangasius sutchi) skin gelatin / Normah Ismail, Najihah Shukor and Zainal Samicho
Silver catfish (Pangasius sutchi) skin gelatin was extracted to determine the effects of extraction time on the functional properties of the gelatin in terms of solubility, protein solubility as a function of pH and sodium chloride concentration, emulsifying capacity and stability, water holding ca...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Research Management Institute (RMI)
2013
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| Online Access: | https://ir.uitm.edu.my/id/eprint/13043/ |
| _version_ | 1848803224405934080 |
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| author | Ismail, Normah Shukor, Najihah Samicho, Zainal |
| author_facet | Ismail, Normah Shukor, Najihah Samicho, Zainal |
| author_sort | Ismail, Normah |
| building | UiTM Institutional Repository |
| collection | Online Access |
| description | Silver catfish (Pangasius sutchi) skin gelatin was extracted to determine the effects of extraction time on the functional properties of the gelatin in terms of
solubility, protein solubility as a function of pH and sodium chloride concentration, emulsifying capacity and stability, water holding capacity, fat binding capacities
and foaming properties. Silver catfish skins were washed in sodium chloride (NaCl) solution prior to pre-treatment in sodium hydroxide (NaOH) and acetic acid solution. Gelatin was extracted at 50ºC for 6, 8, 10 and 12 hours extraction time followed by freeze drying. The extraction of silver catfish skin gelatin at 50 ºC for 12 hours was more effective than extraction at 6, 8 and 10 hours where the gelatin was characterized by higher emulsifying capacity (52.63%), emulsifying stability (47.83%), water holding capacity (31.78 mL/g), fat binding capacities (54.76%),
foaming capacity (41.47 mL) and foaming stability (56.42%) than gelatins extracted at other extraction time. The longer the extraction time, the better the functional
properties of the gelatin. Based on its good functional properties, silver catfish skin gelatin may be useful in various food applications such as soups, sauces and gravies. |
| first_indexed | 2025-11-14T21:35:51Z |
| format | Article |
| id | uitm-13043 |
| institution | Universiti Teknologi MARA |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T21:35:51Z |
| publishDate | 2013 |
| publisher | Research Management Institute (RMI) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uitm-130432023-04-27T07:43:51Z https://ir.uitm.edu.my/id/eprint/13043/ Effects of extraction time on the functional properties of silver catfish (Pangasius sutchi) skin gelatin / Normah Ismail, Najihah Shukor and Zainal Samicho srj Ismail, Normah Shukor, Najihah Samicho, Zainal Foam Extraction (Chemistry) Catfishes. By order-Siluriformes Catfishes. By family-Simenchelyidae Gelatin Emulsions Silver catfish (Pangasius sutchi) skin gelatin was extracted to determine the effects of extraction time on the functional properties of the gelatin in terms of solubility, protein solubility as a function of pH and sodium chloride concentration, emulsifying capacity and stability, water holding capacity, fat binding capacities and foaming properties. Silver catfish skins were washed in sodium chloride (NaCl) solution prior to pre-treatment in sodium hydroxide (NaOH) and acetic acid solution. Gelatin was extracted at 50ºC for 6, 8, 10 and 12 hours extraction time followed by freeze drying. The extraction of silver catfish skin gelatin at 50 ºC for 12 hours was more effective than extraction at 6, 8 and 10 hours where the gelatin was characterized by higher emulsifying capacity (52.63%), emulsifying stability (47.83%), water holding capacity (31.78 mL/g), fat binding capacities (54.76%), foaming capacity (41.47 mL) and foaming stability (56.42%) than gelatins extracted at other extraction time. The longer the extraction time, the better the functional properties of the gelatin. Based on its good functional properties, silver catfish skin gelatin may be useful in various food applications such as soups, sauces and gravies. Research Management Institute (RMI) 2013 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/13043/2/13043.pdf Ismail, Normah and Shukor, Najihah and Samicho, Zainal (2013) Effects of extraction time on the functional properties of silver catfish (Pangasius sutchi) skin gelatin / Normah Ismail, Najihah Shukor and Zainal Samicho. (2013) Scientific Research Journal <https://ir.uitm.edu.my/view/publication/Scientific_Research_Journal.html>, 10 (1). pp. 65-81. ISSN 1675-7009 https://srj.uitm.edu.my/ |
| spellingShingle | Foam Extraction (Chemistry) Catfishes. By order-Siluriformes Catfishes. By family-Simenchelyidae Gelatin Emulsions Ismail, Normah Shukor, Najihah Samicho, Zainal Effects of extraction time on the functional properties of silver catfish (Pangasius sutchi) skin gelatin / Normah Ismail, Najihah Shukor and Zainal Samicho |
| title | Effects of extraction time on the functional properties of silver catfish (Pangasius sutchi) skin gelatin / Normah Ismail, Najihah Shukor and Zainal Samicho |
| title_full | Effects of extraction time on the functional properties of silver catfish (Pangasius sutchi) skin gelatin / Normah Ismail, Najihah Shukor and Zainal Samicho |
| title_fullStr | Effects of extraction time on the functional properties of silver catfish (Pangasius sutchi) skin gelatin / Normah Ismail, Najihah Shukor and Zainal Samicho |
| title_full_unstemmed | Effects of extraction time on the functional properties of silver catfish (Pangasius sutchi) skin gelatin / Normah Ismail, Najihah Shukor and Zainal Samicho |
| title_short | Effects of extraction time on the functional properties of silver catfish (Pangasius sutchi) skin gelatin / Normah Ismail, Najihah Shukor and Zainal Samicho |
| title_sort | effects of extraction time on the functional properties of silver catfish (pangasius sutchi) skin gelatin / normah ismail, najihah shukor and zainal samicho |
| topic | Foam Extraction (Chemistry) Catfishes. By order-Siluriformes Catfishes. By family-Simenchelyidae Gelatin Emulsions |
| url | https://ir.uitm.edu.my/id/eprint/13043/ https://ir.uitm.edu.my/id/eprint/13043/ |