| http://www.w3.org/ns/prov#value | - Liquid compositions of the invention will generally comprise at least 0.005 ??mol/ml of antimicrobial activity enhancing agents, i.e., ??-amino acids such as glycine and alanine, and more preferably from 0.05 ??mol/ml to 50 ??mol/ml of such antimicrobial activity enhancing agent.
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