Impact of Silver Nanoparticles on the Nutritional Properties of

Overview

Journal PeerJ

Specialties Biology
Environmental Health
General Medicine

Date 2022 Oct 17

PMID 36248713

Authors

Sharolynne Xiao Tong Liang

Sinouvassane Djearamane

Anto Cordelia Tanislaus Antony Dhanapal

Ling Shing Wong

Affiliations

Soon will be listed here.

Abstract

Background: is farmed worldwide due to its nutrient-rich properties and provides multiple benefits to human health. However, the wide usage of silver nanoparticles (Ag NPs) causes pollution which may affect the nutritional quality of . Hence, this study aimed to investigate the interaction and accumulation of Ag NPs on , and determine the changes in biomass and nutritional value of due to the exposure to Ag NPs.

Methods: The interaction and accumulation of Ag NPs on were examined through Fourier transformed infrared (FTIR) spectroscopy and scanning electron microscope (SEM). The loss in biomass together with the macromolecules, pigments, and phenolic compounds of was investigated upon treating with various concentrations of Ag NPs (5, 10, 25, 50 and 100 µg/mL) for 24, 48, 72 and 96 h.

Results: The results showed that the treatment of with Ag NPs caused a dose and time-dependent reduction in biomass, macronutrients, pigments and phenolic compounds. The highest detrimental effects were found at 96 h with the reported values of 65.71 ± 2.79%, 67.21 ± 3.98%, 48.99 ± 4.39% and 59.62 ± 3.96% reduction in biomass, proteins, carbohydrates and lipids, respectively, along with 82.99 ± 7.81%, 67.55 ± 2.63%, 75.03 ± 1.55%, and 63.43 ± 2.89% loss in chlorophyll-, carotenoids, C-phycocyanin, and total phenolic compounds of for 100 µg/mL of Ag NPs. The EDX analysis confirmed the surface accumulation of Ag NPs on cells, while SEM images evidenced the surface alterations and damage of the treated cells. The functional groups such as hydroxyl, amine, methyl, amide I, amide II, carboxyl, carbonyl and phosphate groups from the cell wall of the were identified to be possibly involved in the interaction of Ag NPs with .

Conclusion: The study confirmed that the exposure of Ag NPs is detrimental to where the interaction and accumulation of Ag NPs on caused reduction in biomass, macromolecules, pigments, and total phenolic compounds.

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