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Obtención y caracterización de colágeno del pez de agua dulce Prochilodus magdalenae: aplicación en películas biodegradables
Summary
Researchers extracted collagen from the skin, scales, fins, and heads of a South American freshwater fish and used it to make biodegradable films. The collagen-based films showed promising mechanical and barrier properties for food packaging applications. Using fish processing waste as a raw material for biodegradable packaging could help reduce reliance on conventional single-use plastics.
El objetivo de este trabajo es obtener y caracterizar colágeno de diferentes partes residuales del pez de agua dulce Prochilodus magdalenae (Pm) para explorar su aplicación en películas biodegradables. Se utiliza piel, escamas, aletas y cabezas de Pm para extraer colágeno y elaborar películas usando hidroxipropil metilcelulosa (HPMC). Los resultados muestran que la extracción de colágeno con mayor rendimiento se obtiene de la piel. Las mejores propiedades térmicas se observan en la piel y las escamas. Las películas biodegradables se hacen más fuertes, menos rígidas y deformables con la adición de colágeno. Además, se observan dos etapas de degradación térmica típicas del HPMC. Las micrografías revelan que las películas ganan suavidad superficial con la presencia del colágeno, aunque la barrera al vapor de agua se hace ligeramente menor. Se concluye que el uso de colágeno obtenido de residuos de Pm tiene aplicaciones prometedoras para el desarrollo de películas biodegradables.
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