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...

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Main Authors:	Ismail, Normah, Shukor, Najihah, Samicho, Zainal
Format:	Article
Language:	English
Published:	Research Management Institute (RMI) 2013
Subjects:	Foam Extraction (Chemistry) Catfishes. By order-Siluriformes Catfishes. By family-Simenchelyidae Gelatin Emulsions
Online Access:	http://ir.uitm.edu.my/id/eprint/13043/ http://ir.uitm.edu.my/id/eprint/13043/1/AJ_NORMAH%20ISMAIL%20SRJ%2013%201.pdf

id	uitm-13043
recordtype	eprints
spelling	uitm-130432016-05-30T04:09:56Z http://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 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 http://ir.uitm.edu.my/id/eprint/13043/1/AJ_NORMAH%20ISMAIL%20SRJ%2013%201.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. Scientific Research Journal, 10 (1). pp. 65-81. ISSN 1675-7009
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Foam Extraction (Chemistry) Catfishes. By order-Siluriformes Catfishes. By family-Simenchelyidae Gelatin Emulsions
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
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.
format	Article
author	Ismail, Normah Shukor, Najihah Samicho, Zainal
author_facet	Ismail, Normah Shukor, Najihah Samicho, Zainal
author_sort	Ismail, Normah
title	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_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_sort	effects of extraction time on the functional properties of silver catfish (pangasius sutchi) skin gelatin / normah ismail, najihah shukor and zainal samicho
publisher	Research Management Institute (RMI)
publishDate	2013
url	http://ir.uitm.edu.my/id/eprint/13043/ http://ir.uitm.edu.my/id/eprint/13043/1/AJ_NORMAH%20ISMAIL%20SRJ%2013%201.pdf
first_indexed	2023-09-18T22:49:44Z
last_indexed	2023-09-18T22:49:44Z
_version_	1777417463570366464

Effects of extraction time on the functional properties of silver catfish (Pangasius sutchi) skin gelatin / Normah Ismail, Najihah Shukor and Zainal Samicho

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