Effect of Time and Temperature on Nisin Encapsulated in 50/50 Nylon/Cotton Blend Fabric
Technical Report,01 Jan 2014,31 Dec 2015
ARMY NATICK SOLDIER RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA NATICK United States
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Antimicrobial textiles are becoming of increasing interest, particularly to the military, to prevent bacteria from colonizing and degrading the fabric, as well as providing protection to Soldiers from potential pathogens. Due to increasing antimicrobial resistance, alternatives to broad spectrum agents are needed. This paper discusses a novel approach of imparting antimicrobial functionality to a textile using nisin, a bacteriocin used in the food preservation industry, through encapsulation within a titania matrix. A month long storage study at conditions of 4 degrees C, 25 C, and 37 degrees C was conducted to assess the stability of the nisin on the textile over time at different temperatures. Activity of the nisin was measured weekly using a modified version of the AATCC100 method. Results showed that nisin is not active at temperatures above 4 degrees C after 2 weeks and that additional or alternative encapsulation would be necessary to enhance stability of the bacteriocin.
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