Lipase Polypeptides for Harsh Cleaning Environments
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Solution Overview
Problem
Current cleaning and fabric care compositions often interfere with the effectiveness of lipases, making it difficult for them to efficiently remove lipid stains due to harsh environmental conditions.
Innovation Solution
Development of isolated polypeptides with lipase activity that have high sequence identity to specific mature polypeptides or their variants, which can be used in cleaning compositions to enhance their performance in harsh conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lipases are used in cleaning compositions, then lipid stain removal function is provided, but the harsh composition environment interferes with lipase effectiveness
Solution Approach 1:
The patent applies parameter changes by modifying the amino acid sequence of lipase through specific substitutions (e.g., substituting hydrophobic residues with hydrophilic ones, or vice versa) to alter the enzyme's properties. This enables the lipase to maintain effectiveness in harsh cleaning composition environments while retaining its lipid stain removal function.
2Productivity
If lipase sequence is highly optimized for performance, then wash performance improves, but the complexity of identifying effective variants increases
Solution Approach 1:
The patent applies local quality by focusing mutations on specific regions of the lipase molecule rather than the entire sequence. By identifying and modifying only the critical amino acid positions that affect performance in harsh environments, the approach achieves improved wash performance while reducing the complexity of variant identification and screening.
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
The polypeptides demonstrate improved wash performance by effectively removing lipid stains, even in challenging composition environments, thereby addressing the limitations of existing lipases in cleaning applications.
Implementation Method 1
Lipases have been employed in compositions for the removal of lipid stains by hydrolyzing triglycerides to generate fatty acids
Implementation Method 2
Lipases are important biocatalysts which have shown to be useful for various applications
Data Source
AI summary
Isolated polypeptides with lipase activity; polynucleotides encoding the polypeptides; nucleic acid constructs, vectors, and host cells comprising the polynucleotides; and methods of using the polypeptides for cleaning are disclosed.