Eco-friendly production of aunps and their impact on the oil oxidative stability

dc.creatorMichels, Flavio Santana
dc.creatorGoncalves, Pablo José
dc.creatorNascimento, Valter Aragão do
dc.creatorOliveira, Samuel Leite de
dc.creatorSantos, Heberton Wender Luiz dos
dc.creatorCaires, Anderson Rodrigues Lima
dc.date.accessioned2023-05-10T13:39:25Z
dc.date.available2023-05-10T13:39:25Z
dc.date.issued2021
dc.description.abstractVegetable oils have been used for different applications and, more recently, as an active host medium to obtain nanoparticles for employment in bionanotechnological applications. Nevertheless, oils are very susceptible to oxidation during production, storage, and transportation because of their chemical composition. Consequently, any modification in their production must be accompanied by an analysis of the oxidative stability. In this study, naked and biocompatible gold nanoparticles (AuNPs) were grown on sunflower oil during sputtering deposition using different deposition times. Size and morphology were determined by transmission electron microscopy (TEM) and their concentrations were found by inductively coupled plasma-optical emission spectroscopy (ICP-OES). Rancimat® method was employed to evaluate the AuNPs influence on the oxidative stability of the vegetable oil. Well-dispersed quasi-spherical NPs were produced with a mean diameter in the 2.9–3.7 nm range and they were concentration-dependent on the deposition time. A concentration of about 11 mg/L, 38 mg/L, and 225 mg/L of AuNPs was obtained for a deposition time of 5 min, 15 min, and 30 min, respectively. The results also revealed that AuNPs negatively affected the oxidative stability of the sunflower oil and exponentially reduced the induction period (IP) with the increase in AuNPs content. IP reductions of 63%, 77%, and 81% were determined for the AuNPs containing samples at 11 mg/L, 38 mg/L, and 225 mg/L. For the first time, it is reported that naked AuNPs promote the rapid degradation of vegetable oil and this points out the need for attention relative to the quality of vegetable oils used to host metal nanoparticles.pt_BR
dc.identifier.citationMICHELS,Flávio S.; GONÇALVES, , Pablo J.; NASCIMENTO, Valter A.; OLIVEIRA, Samuel L.; WENDER, Heberton; CAIRES, Anderson R. L. Eco-friendly production of aunps and their impact on the oil oxidative stability. Nanomaterials, Basel, v. 11, n. 7, e1668, 2021. DOI: 10.3390/nano11071668. Disponível em: https://pubmed.ncbi.nlm.nih.gov/34201924/. Acesso em: 4 maio 2023.pt_BR
dc.identifier.doi10.3390/nano11071668
dc.identifier.issn2079-4991
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/22492
dc.language.isoengpt_BR
dc.publisher.countrySuicapt_BR
dc.publisher.departmentInstituto de Física - IF (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectGold nanoparticlept_BR
dc.subjectRancimatpt_BR
dc.subjectVegetable oilpt_BR
dc.subjectSunflowerpt_BR
dc.subjectOxidative stabilitypt_BR
dc.titleEco-friendly production of aunps and their impact on the oil oxidative stabilitypt_BR
dc.typeArtigopt_BR

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