It was evaluated the chemical profile, antioxidant and anti-inflammatory activity, in an unprecedented way, of silver nanoparticles (AgNPs) synthesized from the essential oil nanoemulsion (NEO) of Piper nigrum. For essential oil extraction (EO), the hydrodistillation technique was used and the chemical constituents were identified by Gas Chromatography Coupled to Mass Spectrometry (GC-MS). The nanoemulsions were prepared using the phase inversion method and the synthesis of the AgNPs were performed by the Agno3 Ag reduction method using NEO. Antioxidant activity was evaluated using the abts...

Auf beispiellose Weise wurden das chemische Profil sowie die antioxidative und entzündungshemmende Aktivität von Silbernanopartikeln (AgNPs) untersucht, die aus der ätherischen Öl-Nanoemulsion (NEO) von Piper nigrum synthetisiert wurden. Die Nanoemulsionen wurden mit der Phaseninversionsmethode hergestellt und die Synthese von AgNPs wurde mit der Agno3 Ag-Reduktionsmethode unter Verwendung von NEO durchgeführt. Die antioxidative Aktivität wurde durch die Abts-Radikalverfärbungsmethode und die entzündungshemmende Aktivität durch Proteindenaturierung bewertet. Der Hauptbestandteil des...

Une revue de la littérature sur l'activité antioxydante des huiles essentielles révèle leur potentiel significatif dans la protection contre le stress oxydatif. Plusieurs études démontrent que les composés bioactifs présents dans ces huiles, tels que les flavonoïdes et les terpènes, ont des propriétés antioxydantes qui neutralisent les radicaux libres. En outre, l'efficacité antioxydante varie en fonction de l'origine et de la composition chimique des huiles essentielles. Les applications comprennent non seulement la conservation des aliments, mais aussi des avantages dans des...

A review of the literature on the antioxidant activity of essential oils reveals their significant potential in protecting against oxidative stress. Several studies demonstrate that bioactive compounds present in these oils, such as flavonoids and terpenes, have antioxidant properties that neutralize free radicals. Furthermore, antioxidant efficacy varies according to the origin and chemical composition of the essential oils. Applications include not only food preservation, but also benefits in pharmacological and therapeutic contexts. Thus, research on essential oils shows promise,...

The encapsulation of bioactive compounds in nanoemulsions is an innovative technique that aims to improve the solubility, stability and bioavailability of substances with functional properties, such as antioxidants, antimicrobials and anti-inflammatories. Nanoemulsions, formed by droplets with sizes smaller than 200 nm , are capable of increasing the absorption of bioactive compounds by the organism and protecting these compounds from degradation during storage and processing. This article reviews the methods of preparing nanoemulsions, such as high-pressure homogenization and ultrasound, and...

An innovative tool called PASS Online was developed to predict the biological activity spectra of organic compounds based on their structural formulas, covering more than 4,000 types of biological activity with an average accuracy greater than 95%. Thus, the objective was to evaluate the antioxidant potential of organic molecules from the synergistic hydroalcoholic extract of Aloe vera and Syzygium aromaticum, by in silico study, seeking to establish a relationship with experimental studies for teaching Organic Functions based on this interaction.