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Progress and recent trends in biotechnological methods for leather processing.

Palanisamy Thanikaivelan1, Jonnalagadda R Rao, Balachandran U Nair

  • 1Centre for Leather Apparels and Accessories Development, Central Leather Research Institute, Adyar, Chennai 600 020, India.

Trends in Biotechnology
|March 25, 2004
PubMed
Summary

Enzyme-based bioprocesses offer a sustainable solution for leather processing, significantly reducing pollution from pre-tanning and tanning. This approach minimizes hazardous waste and toxic gases like hydrogen sulfide.

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Area of Science:

  • Biotechnology
  • Environmental Science
  • Materials Science

Background:

  • Leather processing generates substantial pollution (80-90%) from pre-tanning and tanning stages.
  • Key pollutants include noxious gases (e.g., hydrogen sulfide) and solid wastes (lime, chrome sludge).
  • Global environmental regulations are driving the need for cleaner industrial practices.

Purpose of the Study:

  • To review emerging novel biotechnological methods in leather processing.
  • To highlight advancements in enzyme-based applications for reduced environmental impact.
  • To discuss the development of bioprocesses for de-hairing and fiber-opening.

Main Methods:

  • Exploration of enzyme-based products in various leather-making areas.
  • Focus on enzymatic de-hairing to replace sodium sulfide.

Related Experiment Videos

  • Development of bioprocess-based methodologies for de-hairing and fiber-opening.

    • Main Results:

    • Enzymes are increasingly important, particularly in de-hairing, offering an alternative to sodium sulfide.
    • Biotechnological methods show promise in reducing toxic waste generation.
    • A novel bioprocess for de-hairing and fiber-opening has been developed.

    Conclusions:

    • Enzyme-based bioprocesses represent a significant advancement in sustainable leather manufacturing.
    • These methods effectively reduce toxic waste and hazardous gas emissions.
    • Biotechnology offers a viable pathway to meet stringent environmental regulations in the leather industry.