Recombinant Mink Hair Keratin Production for Sustainable Fur Textiles
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Solution Overview
Problem
Current artificial furs are environmentally unsustainable and lack the physical and textural properties of natural furs, while natural furs are limited in supply and raise ethical concerns, necessitating a sustainable and ethically sound alternative.
Innovation Solution
Recombinantly produce mink fur keratin proteins in microbial hosts like Escherichia coli and Komagataella phaffii by identifying and modifying key keratin genes for expression and purification, using heterologous promoters and secretion signals to achieve industrial-scale production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If natural furs are used, then physical and textural properties are excellent, but supply is limited and ethical concerns arise
Solution Approach 1:
The patent creates a copy of natural mink fur keratin proteins through recombinant DNA technology. The keratin genes are isolated from mink, cloned into microbial hosts (E. coli and Komagataella phaffii), and expressed to produce identical keratin proteins that replicate the physical and textural properties of natural fur while being produced in unlimited quantities through microbial fermentation
2Productivity
If artificial synthetic furs are used, then mass production is achieved, but environmental sustainability is poor and physical properties are inferior
Solution Approach 1:
The patent changes the fundamental parameter of material composition from petrochemical synthetics to biologically-derived recombinant keratin proteins. By producing mink fur keratin through microbial fermentation using renewable resources and sustainable cultivation practices, the material achieves both mass production capability and environmental sustainability, eliminating the harmful factors associated with petroleum-based synthetic furs
Solution Approach 2:
The patent creates a composite material system where recombinant mink keratin proteins are produced in microbial hosts and then processed into fiber structures that mimic natural fur. This composite approach combines the advantages of microbial production (scalability, sustainability) with the superior physical properties of natural keratin, resulting in a material that outperforms both natural and synthetic alternatives
3Productivity
If keratin genes are expressed in microbial hosts, then unlimited production is achieved, but keratins are not endogenous in microbial phyla
Solution Approach 1:
The patent uses microbial hosts (E. coli and Komagataella phaffii) as intermediary systems to produce mink keratin proteins. The keratin genes are cloned into these microbial hosts along with appropriate promoters and regulatory elements, enabling the microbes to function as factories that produce the mammalian keratin proteins. This intermediary approach allows unlimited production through microbial fermentation while overcoming the fact that keratins are not endogenous to microbial phyla
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Provides a sustainable and ethically friendly alternative to natural and artificial furs with properties similar to natural furs, overcoming supply limitations and environmental impacts.
Implementation Method 1
an isolated recombinant nucleic acid molecule comprising at least one nucleic acid sequence encoding at least one mink hair keratin protein and further comprising a heterologous promoter controlling the expression of said at least one nucleic acid sequence
Data Source
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AI summary
The present invention concerns an isolated recombinant nucleic acid molecule comprising at least one nucleic acid sequence encoding at least one mink hair keratin protein and further comprising a heterologous promoter controlling the expression of said at least one nucleic acid sequence, as well as an expression vector comprising said nucleic acid molecule, a host cell comprising said nucleic acid molecule or said expression vector and a method of production of mink hair keratin protein using said nucleic acid molecule.