Table 2.

Peak wavelength and absorbance of silver nanoparticles using aqueous and organic extracts of the dried rhizome of Z. zerumbet.

Concentration (mM)	pH	Organic Extract (ZZEE-AgNPs) Wavelength (nm)	Organic Extract (ZZEE-AgNPs) Absorbance	Aqueous Extract (ZZAE-Ag-NPs) Wavelength (nm)	Aqueous Extract (ZZAE-AgNPs) Absorbance
1	12	402.0, 413.0, and 420	2.443, 2.443, and 2.443	410.0	0.953
10		419.0	2.699	407.5	2.721

ZZEE-AgNPs = AgNPs synthesized using organic extract of Z. zerumbet; ZZAE-AgNPs = AgNPs synthesized using aqueous extract of Z. zerumbet.