Optimization of gelatin extraction from unicorn leatherjacket (Aleuterus monoceros) skin waste: response surface approach
Optimization of gelatin extraction from unicorn leatherjacket (Aleuterus monoceros) skin waste: response surface approach
Date
2013
Authors
Mandakini Devi, H.
Sathish Kumar, K.
Kamei, G.
Jetender Kumar, J.
Mithilesh Kumar
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Physical properties of gelatin extracted from
Unicorn leatherjacket (Aluterus monoceros) skin, which is
generated as a waste from fish processing industries, were
optimised using Response Surface Methodology (RSM). A
Box-Behnken design was used to study the combined effects
of three independent variables, namely phosphoric acid
(H3PO4) concentration (0.15–0.25 M), extraction temperature
(40–50 °C) and extraction time (4–12 h) on different responses
like yield, gel strength and melting point of gelatin. The
optimum conditions derived by RSM for the yield (10.58%)
were 0.2 M H3PO4 for 9.01 h of extraction time and hot water
extraction of 45.83 °C. The maximum achieved gel strength
and melting point was 138.54 g and 22.61 °C respectively.
Extraction time was found to be most influencing variable and
had a positive coefficient on yield and negative coefficient on
gel strength and melting point. The results indicated that
Unicorn leatherjacket skins can be a source of gelatin having
mild gel strength and melting point.
Description
Keywords
Unicorn leatherjacket, Skin waste, Gelatin, Gel strength, Melting point, Response surface methodology
Citation
J. Food Sci. Technol. 52(2) : 976-983