Exotic leather from broiler chicken leg skin: Processing and characterization
DOI:
https://doi.org/10.3329/bjsir.v60i4.83796Keywords:
poultry, by-product, tanning, leather, physical propertiesAbstract
Broiler chicken leg skin (Cobb-500) is investigated in this study as an unconventional raw material for exotic leather production in Bangladesh. The raw skin contains 65.5% moisture, 28.4% protein, 6.2% fat, and 9.9% ash. Three tanning systems—chrome, semi-chrome, and vegetable—were applied to produce finished leathers, and their physicochemical and structural properties were evaluated. Thermogravimetric analysis revealed that chrome-tanned leather exhibited the highest thermal stability, with collagen degradation onset at ~350°C and ~20% residual chromium oxides, while vegetable-tanned samples degraded earlier with <5% residue. Mechanical testing showed chrome tanning achieved superior performance, with tensile strength (105 kg/cm²), tear strength (19.9 kg/cm²), elongation (19.3%), and shrinkage temperature (101°C). SEM micrographs confirmed compact, well-organized fiber bundles in chrome-tanned leather, contrasting with denser, less flexible structures in vegetable-tanned samples. Chicken leg skin shows strong potential as a renewable, durable leather source, promoting waste utilization and sustainable materials.
Bangladesh J. Sci. Ind. Res. 60(4), 287-296, 2025
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