the antimicrobial action of 11 compounds involving guaiacyl- and syringyl-like structures ( low-molecular-weight part of lignin ) , gallic acid and its derivatives , cinnamic acid and its derivatives , veratric acid , anisic acid and crotonic acid ( a total of 25 compounds ) against bacteria , yeast-like organisms and protozoa was examined .
C0004611
bacteria
C0029235
organisms