Table 8.

Antimicrobial activity of mangiferin analogues.

No.	R	Antimicrobial Activity (Inhibitory Growth Zones)
45N	H (Mangiferin)	B. pumilus (18 mm); B. cereus (15 mm); S. virchow (22 mm); P. aeruginosa (0 mm); A. flavus (0 mm; 12 mm *); T. aurantiacus (0 mm; 18 mm *)
6S		B. pumilus (16 mm); B. cereus (12 mm); S. virchow (19 mm); P. aeruginosa (0 mm; 10 mm *); A. flavus (0 mm; 11 mm *); T. aurantiacus (0 mm; 14 mm *)
7S		B. pumilus (15 mm); B. cereus (12 mm); S. virchow (20 mm); P. aeruginosa (0 mm; 8 mm *); A. flavus (0 mm; 11 mm *); T. aurantiacus (0 mm; 13 mm *)
8S		B. pumilus (17 mm); B. cereus (15 mm); S. virchow (20 mm); P. aeruginosa (0 mm; 10 mm *); A. flavus (0 mm; 14 mm *); T. aurantiacus (0 mm; 15 mm *)
9S		B. pumilus (18 mm); B. cereus (14 mm); S. virchow (20 mm); P. aeruginosa (0 mm; 9 mm *); A. flavus (0 mm; 11 mm *); T. aurantiacus (0 mm; 16 mm *)
10S		B. pumilus (17 mm); B. cereus (14 mm); S. virchow (19 mm); P. aeruginosa (0 mm; 9 mm *); A. flavus (0 mm; 12 mm *); T. aurantiacus (0 mm; 14 mm *)
11S		B. pumilus (18 mm); B. cereus (13 mm); S. virchow (18 mm); P. aeruginosa (0 mm; 10 mm *); A. flavus (0 mm; 11 mm *); T. aurantiacus (0 mm; 15 mm *)

The antimicrobial studies were determined using a disc diffusion method, where the inhibitory growth zones inhibition caused by the tested compounds in 15% concentration is expressed in millimeters (mm); * compounds at 15% concentration (with microbial activity) and at 30%.