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Ruta Quimioenzimática para el Teñido Covalente de Fibras de Celulosa
Awilda Maccow1, Etienne Severac1, Sandrine Morel1
1Toulouse Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France.
Chemistry (Weinheim an der Bergstrasse, Germany)
|January 27, 2026
Resumen
Este estudio presenta un método quimioenzimático de dos pasos para la unión covalente de tintes aminados al algodón, ofreciendo una alternativa más ecológica a los procesos convencionales de teñido textil.
Área de la Ciencia:
- Química Textil
- Biocatálisis
- Materiales Sostenibles
Sus antecedentes:
- El teñido reactivo convencional utiliza productos químicos peligrosos, lo que causa problemas ambientales y de salud.
- Existe la necesidad de métodos de teñido sostenibles con fijación covalente del tinte.
Objetivo del estudio:
- Demostrar un proceso quimioenzimático para el injerto de tintes aminados en superficies de algodón.
- Evaluar la viabilidad de la unión covalente de tintes utilizando enzimas y aminación reductiva.
- Identificar criterios para el diseño de tintes adecuados para este novedoso método.
Principales métodos:
- Las fibras de algodón se oxidaron utilizando lacasa/TEMPO para introducir grupos carbonilo.
- Se injertaron tintes aminados (rodamina 123, rojo ácido 33) mediante aminación reductiva.
- La unión covalente se confirmó mediante análisis LC-MS después del tratamiento con celulasa.
Principales resultados:
- Se logró la unión covalente exitosa de tintes a fibras y tejidos de algodón.
- El colorante rojo ácido 33 demostró una excelente uniformidad de color y solidez en el tejido de algodón.
- Se identificaron criterios para el diseño de tintes mediante la prueba de varios tintes.
Conclusiones:
- El enfoque quimioenzimático ofrece un método viable para el teñido covalente de algodón.
- Este proceso presenta un paso hacia una coloración textil más sostenible.
- La investigación adicional puede optimizar el diseño de tintes y las condiciones del proceso para una aplicación más amplia.
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