Abstract
The ability to orally administer silver nanoparticles (AgNPs) in enteric capsules implies a direct interaction with the colon microbiota. The in vitro effect provides a portrayal of the functional properties under in vivo conditions. The purpose of this study was to describe a green AgNP synthesis process, using aqueous extract from Lactarius piperatus mushroom, and to characterize the nanomaterial. We determined its antimicrobial and antioxidant effects in vitro in the microbiota of healthy individuals via the GIS1 system-a colon transit simulator. Per the quantitative polymerase chain reaction (qPCR) results, the antimicrobial properties of the AgNPs affected the initial share of different enteric species by decreasing the Bacteroides, Enterobacteriaceae, and Lactobacillus populations and favoring the Bifidobacterium group. The association between AgNPs and wild mushroom L. piperatus extract had a synergistic antibacterial activity against various pathogenic microorganisms while the mushroom extract reduced biofilm formation. Administration of AgNP maintained its constant antioxidant status, and it was correlated with a reduction in ammonium compounds. The physicochemical characterization of these NPs complemented their bioch...Continue Reading
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