Recovery of silver nanoparticles and management of food wastes: Obstacles and opportunities

Dhanker, Raunak; Rawat, Sapna; Chandna, Vanshika; Deepa,; Kumar, Ram; Das, Soniya; Sharma, Aastha; Kumar, Vineet

doi:10.1016/j.envadv.2022.100303

Cited by 19 publications

(7 citation statements)

References 128 publications

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“…Apart from the nanoparticle's various characteristics, antibacterial properties against Gram-negative bacteria such as E. coli and Grampositive bacteria such as S. aureus showed that potato peel extract-based nanomaterials can function as strong antimicrobial agents. Moreover, another investigation carried out by Wolny-Koładka et al (2022) highlighted the potato peel-and edible parsley stem extract-mediated synthesis of silver nanoparticles. By using a non-toxic base obtained from plant waste biomass, the research conducted in this study supports the idea that nano-silver with good physicochemical properties has potent antimicrobial properties against bacteria like E. coli and S. aureus isolated from surfaces of public utilities.…”

Section: Discussionmentioning

confidence: 99%

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Biosynthesis and characterization of silver nanoparticles generated from peels of Solanum tuberosum (potato) and their antibacterial and wastewater treatment potential

Deepa,

Dhanker,

Kumar

et al. 2023

Front. Nanotechnol.

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Global food production consumes a large fraction of energy budget, land area, and freshwater; however, a larger fraction of the produce is lost or unutilized, which has potential to produce useful products for human use. The biogenic synthesis of silver nanoparticles from such waste food appears to be a promising strategy. A conservative estimate of 70–140 thousand tons of potato peels is produced annually by food-chain companies globally; however, they are primarily utilized to produce substandard feed for livestock or manure. For the formation of highly profitable compounds, enhancement of value, and the process of extraction, such as nanocomposite, organic antioxidants, and organic meal inclusions, potato peels can be used as a cheap, productive, and readily available source of raw material. In the present research, silver nanoparticles (AgNPs) were extracted from the peels of potato (Solanum tuberosum). The fabrication of potato peel-derived AgNPs was established using UV-visible spectroscopy analysis. Approaches like X-ray diffraction (XRD), attenuated total reflection-infrared (ATR-IR) spectroscopy analysis, and field emission scanning electron microscopy (FESEM) were used to determine the characteristics of the AgNPs. Additionally, strains of Gram-positive bacteria such as Staphylococcus aureus (S. aureus) (ATCC 25923) and Gram-negative bacteria such as Escherichia coli (E. coli) (ATCC 25922) were used to determine the antibacterial activity of AgNPs via the disc diffusion technique. The antibacterial properties of AgNPs could help protect food from microbial contamination. Furthermore, AgNPs were tested for their potential application in purification of industrial wastewater. The results revealed that AgNPs derived from the potato peels could be used in industrial and biomedical applications and possess excellent antibacterial activity. Our research suggests that AgNPs can be extracted from a safe and ecofriendly fabrication technique from largely unused potato peels that have a great potential for inhibiting the bacterial growth and for the in situ purification of wastewater in the upcoming years. Therefore, besides value addition to the farm produce, such recycling of potato peels is likely to reduce the burden of the solid waste volumes in agro-centers, kitchen wastes, and food industries across the globe.

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Section: Discussionmentioning

confidence: 99%

“…The best antibacterial properties were shown by nanoparticles synthesized from potato extract. Wolny-Koładka et al (2022) reported the generation of AgNPs and AuNPs based on potato peel and inedible parsley stem extract. Gold and silver nanoparticles are synthesized by reducing and capping potato peels.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis and characterization of silver nanoparticles generated from peels of Solanum tuberosum (potato) and their antibacterial and wastewater treatment potential

Deepa,

Dhanker,

Kumar

et al. 2023

Front. Nanotechnol.

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“…Salak (Indonesian) or snake fruit is one of the local food commodities with quite a large production. Data from the Central Statistics Agency (BPS) showed the amount of snake fruit production in Indonesian reached 1,147,473 tons in 2022 [1]. Apart from being consumed directly, snake fruit can also be processed into various interesting food products such as candied snake fruit, snake fruit dodol, snake fruit chips, snake fruit pudding, and snake fruit brownies.…”

Section: Introductionmentioning

confidence: 99%

Performance of the silica adsorbent from snake fruit peel for removing heavy metals of Ag, Cu, Mn, and Cr in SCW

Salamah,

Satar

2024

IJAAS

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Silver crafts wastewater (SCW) typically contains environmentally harmful heavy metals, including Ag, Cu, Mn, and Cr, necessitating treatment before disposal. This study explores a promising solution using silica (SiO2) adsorbents derived from snake fruit peel through acidic activation with HCl concentrations of 2, 4, and 6 M. Qualitative analysis of the adsorbent involved Fourier-transform infrared spectrometer (FTIR) and x-ray fluorescence (XRF) techniques. XRF analysis revealed major compositions of Si (26%) and Cl (71.46%), with minor elements such as Ca (0.91%), P (0.42%), K (0.37%), Fe (0.12%), and others. FTIR analysis indicated the presence of siloxane (Si-O-Si) and silanol (Si-OH) on the adsorbent. The SiO2 adsorbent demonstrated effectiveness in removing heavy metals (Ag, Cu, Mn, and Cr) from SCW, achieving removal percentages of approximately 16.96%, 24.38%, 19.34%, and 9.82%, respectively. This research contributes to the development of an environmentally friendly approach for SCW treatment using silica adsorbents derived from agricultural waste.

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“…However, the quest to maximize food production has significantly increased the generation of food waste (FW) [4]. Current estimates suggest that approximately 1.3 billion tonnes of FW are generated worldwide per year, a figure projected to double to 2.6 billion tonnes by 2025 [5], with households responsible for 42% of this waste, while industries that manufacture food and provide food services contribute 39% and 14%, respectively [6]. A large volume of FWs that are not utilized (i.e., for animal feed) are mostly thrown into municipal landfills where they generate greenhouse gas (GHG) and methane that may result in severe environmental impact [7].…”

Section: Introductionmentioning

confidence: 99%

Valorisation of pomegranate processing waste for the synthesis of ZnO nanoparticles: antioxidant and antimicrobial properties against food pathogens

Leta,

Adeyemi,

Fawole

2023

Mater. Res. Express

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The sustainable management of food waste is a pressing concern, with fruit waste valorisation emerging as a viable strategy to address this challenge. This study investigated the potential of pomegranate peel waste (PPW) and pomegranate seed waste (PSW) as mediating agents for the biosynthesis of zinc oxide (ZnO) nanoparticles (NPs); ZnO-PPW and ZnO-PSW, respectively, for potential utilization as additives in various polymer matrices for food packaging materials. The resulting physicochemical characteristics were ascertained using Ultraviolet visible spectroscopy (UV–vis), x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), x-ray diffraction (XRD), Scanning electron microscope (SEM) and Energy Dispersive x-Ray Analysis (EDX). The obtained indexed diffractogram from the XRD analysis for both ZnO-PPW and ZnO-PSW confirmed the wurtzite crystalline structure of ZnO NPs. The observed morphology from the TEM and SEM analysis showed a similar spherical shaped structure, with agglomerations. However, ZnO-PSW, had a smaller size (58 nm) in comparison to ZnO-PPW (59 nm). Total phenolic content (TPC) for ZnO-PPW and ZnO-PSW ranged from 16.87–54.4 μg GAE/g DM, respectively. Also, the estimated minimum inhibitory concentration at 50% (IC50) for both DPPH and ABTS are 2.97 and 2.57 mg ml−1 for ZnO-PPW; and 3.43 and 3.33 mg ml−1 for ZnO-PSW, respectively. Moreover, due to its smaller size, ZnO-PSW demonstrated superior antimicrobial activity against five foodborne microorganisms. These findings suggest that pomegranate waste derived ZnO NPs could be beneficial for developing active food packaging materials.

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Recovery of silver nanoparticles and management of food wastes: Obstacles and opportunities

Cited by 19 publications

References 128 publications

Biosynthesis and characterization of silver nanoparticles generated from peels of Solanum tuberosum (potato) and their antibacterial and wastewater treatment potential

Biosynthesis and characterization of silver nanoparticles generated from peels of Solanum tuberosum (potato) and their antibacterial and wastewater treatment potential

Performance of the silica adsorbent from snake fruit peel for removing heavy metals of Ag, Cu, Mn, and Cr in SCW

Valorisation of pomegranate processing waste for the synthesis of ZnO nanoparticles: antioxidant and antimicrobial properties against food pathogens

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