TABLE II.

Antimicrobial Efficacy of Plant Secondary Metabolites Against Skin and Wound Pathogens^*

Treatment (100 mM)	S. aureus	C. acnes	MRSA	P. aeruginosa
PCA	I/CZ/8 mm	I/CZ/22 mm	I/CZ/9 mm	I/CZ/10 mm
Delphinidin	I/CZ/10 mm	I/NZ	I/CZ/7 mm	NI/NZ
Pelargonidin	I/CZ/3 mm	I/CZ/1 mm	I/CZ/4 mm	NI/NZ
Cyanidin Cl	I/CZ/1 mm	NI/NZ	I/CZ/3 mm	NI/NZ
28% C-3-G	I/NZ	I/CZ/23 mm	I/CZ/4 mm	I/CZ/2 mm
2,4,6-THBA	I/CZ/13 mm	NI/NZ	I/CZ/14 mm	I/CZ/3 mm
Vanillic acid	I/CZ/1 mm	NT	I/CZ/1 mm	I/NZ
Hippuric acid	NI/NZ	NT	I/CZ/1 mm	NI/NZ

^*PCA = protocatechuic acid, I = inhibition of growth under the sample, CZ = clear zone of inhibition surrounding the sample and zone width in millimeters, NZ = no zone of inhibition surrounding the sample, NI = no inhibition of growth under the sample, Cl = chloride, C-3-G = cyanidine-3-glucoside, 2,4,6-THBA = 2,4,6-trihydroxybenzoic acid, and NT = not tested.