Green synthesis of ZnO nanoparticle using Prunus dulcis (Almond Gum) for antimicrobial and supercapacitor applications

Anand, G. Theophil; Renuka, D.; Ramesh, R.; Anandaraj, L.; Sundaram, S. John; Ramalingam, G.; Magdalane, C. Maria; Bashir, A.K.H.; Mâaza, M.; Kaviyarasu, K.

doi:10.1016/j.surfin.2019.100376

Cited by 105 publications

(24 citation statements)

References 42 publications

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“…The intensity of the absorption peak of the samples usually decreased with the increase in amount of fruit extract in the reaction mixture. The sample with 10 mL of fruit extract showed sharp peak that corroborates to monodispersed ZnO NPs in the colloid [28]. The TEM images show that most of the nanoparticles are polyhedral in shape (Figure 2A,B).…”

Section: Characterization Of Zno Nanoparticlesmentioning

confidence: 67%

Biodegradable Hybrid Nanocomposite of Chitosan/Gelatin and Green Synthesized Zinc Oxide Nanoparticles for Food Packaging

Kumar

Mudai

Roy

et al. 2020

Foods

119

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In the context of emerging global concerns with synthetic plastic packaging, alternative natural biodegradable packaging materials are gaining increasing attention for food packaging applications. In this study, chitosan and gelatin nanocomposite hybrid films containing green synthesized zinc oxide (ZnO) nanoparticles (NPs) were developed and microstructural properties were studied. Antimicrobial activity of the developed films was evaluated using both Gram negative (Escherichia coli) and Gram positive bacteria (Staphylococcus aureus). Green synthesis protocol was used for the precipitation of ZnO NPs using fruit extract of Cassia fistula. The as-synthesized polyhedral ZnO NPs were in the range of 20–40 nm (average size ≈29 nm). Reinforcement with ZnO NPs in the hybrid films lead to improved thermal stability, elongation-at-break (EAB), and compactness properties. The developed films with 2% and 4% ZnO NPs showed a smooth, compact, and heterogeneous surface morphology compared to the control (chitosan-gelatin hybrid) films. Disc diffusion assays showed that the nanocomposite film had significant antimicrobial activity against E. coli. The developed hybrid nanocomposite films have potential to be developed as biodegradable alternative for postharvest packaging of fresh fruits and vegetables.

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Section: Characterization Of Zno Nanoparticlesmentioning

confidence: 67%

Biodegradable Hybrid Nanocomposite of Chitosan/Gelatin and Green Synthesized Zinc Oxide Nanoparticles for Food Packaging

Kumar

Mudai

Roy

et al. 2020

Foods

119

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“…Theophil Anand et al 47 studied the antibacterial properties of ZnO NPs synthesized from Prunus dulcis extract using a disk diffusion method. It was found that the synthesized ZnO NPs inhibited the growth of S. aureus, E. coli, and S. paratyphi.…”

Section: Antibacterial Properties Of Synthesized Zno Nps From Plant Extractsmentioning

confidence: 99%

A review of the green synthesis of ZnO nanoparticles using plant extracts and their prospects for application in antibacterial textiles

Huang

Zhu

et al. 2021

Journal of Engineered Fibers and Fabrics

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In an era of environmentally friendly development, methods of the green synthesis of zinc oxide nanoparticles (ZnO NPs) from plant extracts have become a focus of research attention because of the benefits of environmental sustainability, simplicity, and low price. The present review introduces a green mechanism for the synthesis of ZnO NPs using the extracts of plants, exploring factors that influence the morphology of ZnO NPs and their antibacterial properties, and the mechanisms of antibacterial action. The results indicate that the factors that influence morphology include the intrinsic crystallographic morphological properties and conditions of the preparation of ZnO NPs. In terms of preparation conditions, the influence of plant extract concentration, precursor concentration, reaction time, and calcination temperature on NP morphology is related to the species of plants used, with precursor concentration the most significant factor affecting the morphology of ZnO NPs. A pH of 12 appears be the most appropriate alkalinity for the synthesis of ZnO NPs from plant extracts. In addition, the synthesized ZnO NPs display excellent antibacterial properties, the mechanism of which involves photocatalysis, reactive oxygen species, and interactions between ZnO NPs and bacterial surfaces. Factors influencing the antibacterial properties are the type of bacteria and the concentration and morphology of ZnO NPs. Finally, the methods of preparation of antibacterial textiles using synthetic ZnO NPs are discussed in relation to the preparation of antibacterial fibers, fabric, and composite textiles. Here, the future trend of such antibacterial textiles is considered, providing the direction for further research of antibacterial textiles.

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“…Moreover, the same extracts have been seen to exert a potent inhibition in the proliferation of Helicobacter pylori from different clinical isolates, referring to protocatechuic acid as the major responsible for this effect [53]. Due to the wide evidence regarding the antibacterial properties of almond by-products, recent reports have proposed the application of almond gum for the design of antimicrobial zinc oxide nanoparticles with a potent antimicrobial activity against S. aureus, Escherichia coli, and Salmonella paratyphi, as well as antifungal activity against Candida albicans [70].…”

Section: Antimicrobial Activitymentioning

confidence: 99%

Almond By-Products: Valorization for Sustainability and Competitiveness of the Industry

Barral-Martinez

Fraga-Corral

García-Pérez

et al. 2021

Foods

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The search for waste minimization and the valorization of by-products are key practices for good management and improved sustainability in the food industry. The production of almonds generates a large amount of waste, most of which is not used. Until now, almonds have been used for their high nutritional value as food, especially almond meat. The other remaining parts (skin, shell, hulls, etc.) are still little explored, even though they have been used as fuel by burning or as livestock feed. However, interest in these by-products has been increasing as they possess beneficial properties (caused mainly by polyphenols and unsaturated fatty acids) and can be used as new ingredients for the food, cosmetic, and pharmaceutical industries. Therefore, it is important to explore almond’s valorization of by-products for the development of new added-value products that would contribute to the reduction of environmental impact and an improvement in the sustainability and competitiveness of the almond industry.

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Green synthesis of ZnO nanoparticle using Prunus dulcis (Almond Gum) for antimicrobial and supercapacitor applications

Cited by 105 publications

References 42 publications

Biodegradable Hybrid Nanocomposite of Chitosan/Gelatin and Green Synthesized Zinc Oxide Nanoparticles for Food Packaging

Biodegradable Hybrid Nanocomposite of Chitosan/Gelatin and Green Synthesized Zinc Oxide Nanoparticles for Food Packaging

A review of the green synthesis of ZnO nanoparticles using plant extracts and their prospects for application in antibacterial textiles

Almond By-Products: Valorization for Sustainability and Competitiveness of the Industry

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