Antimicrobial effects of silver nanoparticles possibly used in food packaging
Künye
Ercan G., Parviz G., Rayaman E., Çam M.E. Antimicrobial effects of silver nanoparticles possibly used in food packaging. III. International Mineral Water Congress, 2025, 34-35.Özet
Microbial contamination in food industry is a major issue resulting in wast ed products and poses a threat to public health through foodborne illnesses.
Silver nanoparticles (AgNPs) have strong antimicrobial properties against
various microorganisms such as bacteria, yeast, and mold. It was also used
for disinfection of potable water leveraging their antimicrobial effect as early
as 1000 B.C (1)..AgNPs destructively interact with microorganisms and exhib it effective antimicrobial activity compared to other silver salts due to their
extensive surface area derived from the spherical shape. Therefore, utilizing
this antimicrobial material in the food industry can be beneficial for pro longing the shelf life of food products by inhibiting the growth of spoilage
and pathogenic microorganisms.
In this research, AgNPs were produced using the chemical reduction meth od at room temperature and aimed to observe the most effective shaped and
sized AgNP sample among the AgNP samples. Eight different samples were
obtained by adding H2
O2
. AgNPs with different sizes and shapes were analyzed
for their antimicrobial activity against Pseudomonas aeruginosa (ATCC 27853),
Staphylococcus aureus (ATCC 43300), Klebsiella pneumoniae (ATCC 4352), Entero coccus faecalis (ATCC 29212), Streptococcus pyogenes (ATCC 19615), Escherichia coli
(ATCC 25922), Candida albicans (ATCC 90028) and Aspergillus brasilinesis (ATCC
16404). The cyto-safety of administration was assured in vitro on human epi dermal keratinocyte (HaCaT) cells via 3-(4, 5-dimethylthiazolyl-2)-2, 5-diphen yltetrazolium bromide (MTT) assay. UV-Visible spectroscopy (UV-VIS), fouri er-transform infrared spectroscopy (FT-IR), X-Ray Diffractometer (XRD), and
zeta potential results showed that adding H2
O2 changed the color, shape, and
particle size, hence the antimicrobial effect of the AgNPs. According to all re sults, AgNPs were seen to have promising potential for food (mineral water)
packaging due to their high antimicrobial activity.