International Journal For Multidisciplinary Research

E-ISSN: 2582-2160   •   Impact Factor: 9.24

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Volume 7 Issue 6
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GELATIN EXTRACTION AND CHARACTERIZATION FROM FISH SCALE WASTES

Author(s) Mr. K. Sathish Kumar, Dr. H. Ann suji suji, Ms. S.Sanathani Sathish kumar
Country India
Abstract Waste materials are a major environmental concern in fisheries and aquaculture industries worldwide. This research investigated the use of bacteria to aid in extracting gelatin from fish scales, with a focus on maximising yield and analysing the physicochemical properties of the produced gelatin. Five bacterial strains capable of breaking down gelatin were isolated from the scales of many fish species, including the species Aneurinibacillus aneurinilyticus and Enterobacter cloacae. Gelatin yields were found to vary between 9.72% and 13.2%, accompanied by protein contents ranging from 7% to 12.06%, confirming the effective enzymatic degradation of collagen by these bacteria. The extracted gelatin exhibited slightly acidic pH values and retained its structural characteristics, as confirmed by FTIR spectroscopy, which identified key amide functional groups. This microbially driven extraction approach minimises the use of harsh chemicals, offering a more sustainable method to convert fish scale waste into valuable gelatin. The findings support the potential development of eco-friendly gelatin production methods with applications across industrial sectors. Future studies should aim to improve bacterial strain performance and scale-up processes for commercial feasibility.
Keywords Fish scale, gelatin, Aneurinibacillus aneurinilyticus, Enterobacter cloacae, PCR amplification, FTIR analysis
Field Biology
Published In Volume 7, Issue 6, November-December 2025
Published On 2025-11-22
DOI https://doi.org/10.36948/ijfmr.2025.v07i06.61302
Short DOI https://doi.org/hbb77p
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