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Effects of pretreatment on properties of gelatin from perch (Lates Niloticus) skin

Hammed, Ademola Monsur and Jaswir, Irwandi and Mohd. Salleh, Hamzah and Alkahtani, Hassan (2014) Effects of pretreatment on properties of gelatin from perch (Lates Niloticus) skin. International Journal of Food Properties, 17 (6). pp. 1224-1236. ISSN 1094-2912

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Abstract

Fish gelatins obtained from perch fish skin pretreated with various solutions containing acetic acid, sodium hydroxide (NaOH) and sodium chloride (NaCl) were successfully characterized for their nanostructure pattern using field emission scanning electron microscopy. Each pretreatment transformed collagen to gelatin with fibril, zigzag cracks, straight rods, and cross-linked rods nanostructure patterns. Pretreatment solutions also affect the gel yield, gel strength, amino acid profile, and functional groups in perch gelatin as analyzed by Fourier transform infrared spectroscopy. Samples pretreated with NaCl, NaOH, and acetic acid solution showed the highest gel yield (22.84%) and gel strength (179.84 g). Fourier transform infrared spectra for perch gelatins also revealed weak C–N amide II and III bond stretches as well as weak C=O bond stretch.

Item Type: Article (Journal)
Additional Information: 7662/51772
Uncontrolled Keywords: FESEM, Gelatin, Nanostructure, Extraction, Gel strength
Subjects: T Technology > TP Chemical technology > TP368 Food processing and manufacture
Kulliyyahs/Centres/Divisions/Institutes: International Institute for Halal Research and Training (INHART)
Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Dr. Ademola Monsur Hammed
Date Deposited: 24 Aug 2016 09:16
Last Modified: 19 Sep 2017 10:14
URI: http://irep.iium.edu.my/id/eprint/51772

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