Bioprocess to valorise fleshing produced in the tanning industry

This study focuses on circular bioeconomy and how to reduce the management of solid by-products in tannery facilities. To achieve this, double enzymatic hydrolysis has been developed, which allows the integrated management of both limed and fresh fleshing that are classified as category 3 animal by-...

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Bibliographic Details
Published in:Environmental science and pollution research international 2024-03, Vol.31 (12), p.17718-17731
Main Authors: Pérez-Aguilar, Henoc, Lacruz-Asaro, Mayra Alejandra, Arán-Aís, Francisca
Format: Article
Language:English
Subjects:
Amino acids
Animals
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Byproducts
Circular economy
Collagen
Earth and Environmental Science
Ecotoxicology
Energy consumption
Environment
Environmental Chemistry
Environmental Health
Environmental science
Enzymes
Germination
Hydrolysis
Industrial Waste
Industry
Laboratory tests
Leather & leather products
Meat processing
Molecular weight
Proteins
Raw materials
Resource recovery
Sustainable Waste Management & Circular Economy
Tanning
Tanning industry
Waste Water Technology
Water Management
Water Pollution Control
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Summary:This study focuses on circular bioeconomy and how to reduce the management of solid by-products in tannery facilities. To achieve this, double enzymatic hydrolysis has been developed, which allows the integrated management of both limed and fresh fleshing that are classified as category 3 animal by-products (ABPs). Fleshing has an average content of 15% fat, 20% protein and 65% water. To process these components independently, the fat fraction is separated from the protein and liquid protein fractions. This bioprocess has been developed from fleshing, yielding up to 78% mass recovery as biostimulants that are suitable for formulation and use in the fertiliser market. The efficacy of the protein fraction as a biostimulant was validated through laboratory tests, specifically by cabbage germination, which exhibited a notable improvement by 25%.
ISSN:1614-7499
0944-1344
1614-7499
DOI:10.1007/s11356-023-28652-0