Table 3.

The bactericidal activity of the investigated lactones against Escherichia coli ATCC 8739 and Staphylococcus aureus ATCC 65389.

Compound	E. coli ATCC 8739	S. aureus ATCC 65389
	Number of CFU/mL (× ${10}^7$)
5a	6.41	2.74
5b	4.06	7.63
5c	9.46	14.83
6a	7.58	5.20
6b	6.32	3.58
6c	2.06	7.39
7a	5.21	4.63
7b	8.63	10.96
7c	6.52	6.42
8a	7.14	9.29
8b	5.83	9.04
8c	8.87	3.60
9b	9.02	21.25
9c	2.43	9.76
10b	7.65	5.92
10c	2.87	6.30
12a	9.43	21.15
13a	6.02	9.12
Control	9.47	21.36
Control with DMSO	9.30	20.85