Analysis of Polyphenolic Compounds in Extracts from Leaves of Some Malus domestica Cultivars: Antiradical and Antimicrobial Analysis of These Extracts

Table 3

Antimicrobial activity of extracts from leaves of different varieties of apple demonstrated as a diameter of inhibition zone of bacterial or fungal growth [mm]. Antimicrobial activity was observed against three out of 9 strains tested: two gram positive bacterial (Staphylococcus aureus, Enterococcus faecalis) and fungal (Candida glabrata) strains. Statistical uncertainty was equal to ±0.33 ().

Cultivar	Extract	Staphylococcus aureus ATCC 25923	Enterococcus faecalis ATCC 29212	Candida glabrata ATCC 90030
Ligol		13	12	0
		10	0	0
		19	11	15
		0	10	0
Golden delicious		10	11	0
		8	0	0
		15	15	10
		0	12	0
Elstar		11	10	0
		8	0	0
		16	13	12
		0	17	0
Jonagold		10	10	0
		8	0	0
		15	11	15
		0	12	0
Mutsu		11	11	0
		10	0	0
		17	13	10
		0	12	0
Ampicillin (10 µg/disc)		32	22	—
Amphotericin B (10 µg/disc)		—	—	15

0: no inhibition observed.
—: activity not investigated.