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The synthetic ePTFE biomaterial contains two antimicrobial preservative agents, silver carbonate and chlorhexidine diacetate to combat that biofilm formation and protect against prominent bacteria like:
"The antimicrobial efficacy as well as the content of preservative agents of six commercially available grapefruit seed extracts were examined.
Much processed food contains colourings, additives and various preservative agents, none of which can be considered healthy.