Antimicrobial and Antioxidant Activities of Plants from Northeast of Mexico

Table 2

Antimicrobial activity of extracts against bacterial strains and yeast isolates tested using on microdilution assay.

Plant	Part	S. a.	S. a.	E. f.	C. a.	C. a.	C. a.	C. g.	C. t.	C. k.	C. p.
		ATCC	Rsist.		498	53	501	84	166	168	96
Ceanothus coeruleus	L	—	1000	–—	62.5	250	125	31.25	250	62.5	62.5
	F	125	—	—	1000	1000	—	31.25	1000	1000	125
	R	—	1000	—	125	31.25	31.25	31.25	250	125	31.25
Chrysactinia mexicana	L	1000	—	—	—	—	—	31.25	—	—	–
	F	1000	—	—	—	—	—	31.25	1000	—	–
	R	1000	—	—	—	—	—	31.25	—	—	–
Colubrina greggii.	L	1000	—	250	250	125	250	31.25	500	125	62.5
	F	1000	—	250	250	125	250	31.25	500	125	125
	R	—	—	—	250	250	125	31.25	500	1000	500
Cordia boissieri	F	62.5	125	—	—	—	—	125	—	—	–
Cyperus alternifolius	L-S	125	—	1000	500	1000	500	31.25	1000	—	1000
	R	250	250	125	500	1000	500	31.25	500	500	1000
Schinus molle	L	125	250	1000	125	125	125	31.25	500	500	250
	F	62.5	125	1000	62.5	62.5	125	31.25	250	62.5	62.5
	B	125	125	125	250	500	250	62.5	125	1000	1000
Cephalotin		15.6	31.25	31.25
Fluconazole					4	4	4	8	0.5	31.25	1

MIC values in 𝜇g ml⁻¹; MIC > 1000 𝜇g ml⁻¹; L: leaves; F: flowers; B: bark; R: root; S: stem; S. a. Staphylococcus aureus; E. f. Enterococcus, faecalis; C. a. Candida albicans; C. g. Candida glabrata; C. t. Candida tropicalis; C. k. Candida krusei; C. p. Candida parapsilosis.