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Effect of pre-treatment conditions on black tilapia fish scales for gelatin extraction

Sockalingama, K. and Idris, Maizlinda Izwana and Abdullah, Hasan Zuhudi (2015) Effect of pre-treatment conditions on black tilapia fish scales for gelatin extraction. In: 2nd International Materials, Industrial & Manufacturing Engineering Conference (MIMEC 2015), 4-6 February 2015, Bali Nusa Dua Convention Center, Bali, Indonesia.

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Abstract

Black tilapia (Oreochromis mossambicus) fish scales are good sources of gelatin. Fish scales needs to undergo adequate demineralization (pre-treatment) process in order to be a suitable medium for gelatin extraction. The effect of hydrochloric acid (HCl) concentrations (1-5 %) and pre-treatment time (4-20 h) on the raw tilapia scales have been determined. Scanning Electron Microscopy (SEM) analysis was done on the raw scales before and after pre-treatment process. SEM images reveal the pattern of ridges on the scales that fades away at different treatment conditions. Energy Dispersive X-ray Spectroscopy (EDX) results indicate that 3% of HCl with 12 h of treatment time is adequate for demineralization of the fish scales. These were further proved by Fourier Transform Infrared Spectroscopy (FTIR) analysis, where no any inorganic components been detected in the pre-treated scales in comparison to raw scales

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: fish gelatin; scales; pre-treatment; black tilapia
Subjects: T Technology > TP Chemical technology > TP950-994 Miscellaneous organic chemical industries
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Mrs. Nurhayati Ali
Date Deposited: 11 Jun 2015 04:05
Last Modified: 11 Jun 2015 04:05
URI: http://eprints.uthm.edu.my/id/eprint/6825
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