Green bleaching additive based on thermostable laccase enzymes for textile applications
An eco-friendly enzyme-based bleaching additive derived from a native Mexican fungal strain (Pycnoporus sanguineus CS43) that produces high redox potential laccases with exceptional thermal and pH stability. This sustainable alternative to conventional chemical oxidation methods supports cleaner textile processing while reducing environmental impact.
Overview
This solution offers a green bleaching additive formulated with thermostable laccase enzymes produced from the autochthonous fungal strain Pycnoporus sanguineus CS43, isolated from northeastern Mexico. Laccases are oxidative enzymes that can replace conventional non-biological bleaching methods, aligning with the textile industry's growing demand for efficient and environmentally friendly oxidation technologies. The strain produces laccases with one of the highest enzymatic activities reported in the literature, making them particularly well-suited for industrial textile applications where performance and sustainability must be balanced.
Technical specifications
Key features:
- Laccase enzymes produced from native Pycnoporus sanguineus CS43 strain with high redox potential
- Exceptional thermal stability with optimal activity between 40 and 70 °C
- Broad pH tolerance with optimal activity in the pH 2 to 6 range
- Resistance to common enzyme inhibitors found in industrial processes
- High enzymatic activity reaching up to 143,000 IU L⁻¹ using an economical culture medium
- Standardized overproduction methodology enabling scalable manufacturing
Applications:
- Textile industry bleaching processes as a replacement for conventional chemical oxidants
- Removal of oxidizable stains in industrial and commercial formulations
- Potential for immobilized enzyme formulations to enhance stability and concentration for commercial use
Technology readiness level
The laccase production methodology has been standardized and validated at laboratory scale, with demonstrated enzymatic activity levels among the highest reported globally. Future validation efforts will focus on two stages: first, testing enzyme formulations against oxidizable stains and developing immobilized laccase variants for improved stability and concentration capacity; second, evaluating shelf life and effectiveness of the selected formulation under room temperature storage conditions alongside quality control parameter assessment. The technology is positioned for transition from laboratory validation to formulation development and eventual commercial deployment in textile bleaching applications.
About Tecnológico de Monterrey
Tecnológico de Monterrey is a leading private, multi-campus research university in Mexico, recognized for entrepreneurship and industry collaboration. Its Monterrey headquarters anchors an urban innovation district with open lab space, prototyping, and shared testing facilities that welcome corporate collaborators. An integrated health system supports clinical research and translation, while structured internships and challenge-driven partnerships connect companies with faculty and student talent year-round. Research is supported by competitive federal funding through Mexico’s national science and technology council, along with industry contracts and international sponsors. A dedicated technology transfer office manages IP, licensing, and startup formation.
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