Physicochemical characterization and antibacterial activities of silver nanoparticles prepared by amidated low-methoxyl pectin.

ABSTRACT: Pectin-based silver nanoparticles (AgNPs) have been used in the field of antibacterials for food due to their excellent antibacterial properties. Herein, in order to achieve higher antibacterial performance, AgNPs were synthesized using high-methoxyl pectin (HMP) and amidated low-methoxyl pectin (ALMP) as precursors. Initially, ALMP-1, -2, and -4 were obtained by pectin amidation with increasing concentrations of NH₄OH. Later, HMP and ALMPs were used to prepare AgNPs, and their physicochemical property and antibacterial activities were studied. Transmission electron microscopy (TEM) showed that the mean diameters of HMP-Ag and ALMP-4-Ag were 11.9 ± 3.8 and 13.0 ± 5.4 nm, respectively. EDS analysis revealed that ALMP-4-Ag combined with more Ag element than HMP-Ag. X-ray photoelec

SUBMITTER: Li PJ 

PROVIDER: S-EPMC11622035 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature