Piper nigrum Leaf and Stem Assisted Green Synthesis of Silver Nanoparticles and Evaluation of Its Antibacterial Activity Against Agricultural Plant Pathogens

Table 2

Evaluation of antibacterial activity of silver nanoparticles synthesized by using leaf and stem extract of Piper nigrum.

S. no.	Name of the bacterial  strain	Piper nigrum leaf (zone of inhibition in mm)			Piper nigrum stem (zone of inhibition in mm)
		Ab	Ag (50 µL)	Ag + Ab (50 µL)	Ag (50 µL)	Ag + Ab (50 µL)
1	Citrobacter freundii	8.023±0.176	8.962±0.203	15.853±0.153	8.894±0.120	12.833±0.441
2	Erwinia cacticida	8.643±0.195	9.052±0.153	16.295±0.203	9.012±0.245	14.533±0.291

Ab: antibiotic; Ag: silver; Ag + Ab: silver nanoparticles combined antibiotic solution.