Management of waste sheep wool as valuable organic substrate in European Union countries

Sheep wool is keratin-rich by-product of sheep breeding and textile industry. Due to complex structure of keratin, this wastes are quite resistant to degradation and represent a serious environmental problem. Waste wool is often converted to different hydrolysates, which are mainly prepared by envir...

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Published in:Journal of material cycles and waste management 2021, Vol.23 (1), p.44-54
Main Authors: Petek, Blaž, Marinšek Logar, Romana
Format: Article
Language:English
Subjects:
Amino acids
Animal husbandry
Biodegradation
Biogas
Biotechnology
Chemical treatment
Civil Engineering
Composting
Energy dissipation
Energy loss
Engineering
Environmental impact
Environmental Management
Fertilizers
Hydrolysates
Keratin
Keratinocytes
Microorganisms
Peptides
Pretreatment
Review
Sheep
Substrates
Textile industry
Waste management
Waste Management/Waste Technology
Wool
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cited_by cdi_FETCH-LOGICAL-c358t-52c5784a80328abfd39298b35e940f8f6b39ea170c8c4fae86dc1f51760b81cb3
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creator Petek, Blaž
Marinšek Logar, Romana
description Sheep wool is keratin-rich by-product of sheep breeding and textile industry. Due to complex structure of keratin, this wastes are quite resistant to degradation and represent a serious environmental problem. Waste wool is often converted to different hydrolysates, which are mainly prepared by environmental unfriendly physico-chemical treatments, resulting in destruction of some amino acids and energy loss. Use of biotechnological approaches, such as microbial or enzymatic pretreatment, and composting, can significantly reduce the environmental impact, and produce useful products, such as fertilizers or substrates for biogas production, and high-added value products (peptides, amino acids and keratinolytic enzymes). In this review we compare different ways of waste wool processing, focused on biotechnological applications.
doi_str_mv 10.1007/s10163-020-01121-3
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subjects Amino acids
Animal husbandry
Biodegradation
Biogas
Biotechnology
Chemical treatment
Civil Engineering
Composting
Energy dissipation
Energy loss
Engineering
Environmental impact
Environmental Management
Fertilizers
Hydrolysates
Keratin
Keratinocytes
Microorganisms
Peptides
Pretreatment
Review
Sheep
Substrates
Textile industry
Waste management
Waste Management/Waste Technology
Wool
title Management of waste sheep wool as valuable organic substrate in European Union countries
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