Biosynthesis and characterization of silver nanoparticles using ginger spent and their antibacterial activity

Ginger spent is the byproduct of spice industries that remove essential oils ginger (Zingiber officinale) for food industry and medicinal purposes. a well known used often seasoning in Indian cuisine. The de-oiled has no specific use mostly goes to waste. Hence, we utilized this industrial waste product efficient synthesis silver nanoparticles with aid UV irradiation from solution 1mM nitrate extract ratio 9:1. Immediate colour change pale yellow dark brown was noted indicating rapid nanoparticles. These were centrifuged, dried characterized. Vis Spectroscopy, XRD analysis, Zeta potential SEM analysis carried out. It commendable size fell within upper limit 100nm. Agar diffusion method screen antimicrobial activity characterized They tested against seven pathogenic strains three gram negative bacteria (Escherichia coli, Klebsiella pneumonia Pseudomonas aeruginosa) positive bacteria(Bacillus subtilis, Staphylococcus aureus Streptococcus faecalis) fungus (Candida albicans). seen zone inhibition(ZOI) plate increased on increasing concentration Further studies could lead application these medicine.