Extraction, characterization and antioxidant properties of phenolic compounds in açaí juçara (Euterpe edulis Mart.) from Atlantic Forest

Silva, Letícia Dangui da; Sari, Rafael; Diedrich, Camila; Pereira, Celeide; Lima, Vanderlei Aparecido de; Oldoni, Tatiane Luiza Cadorin; Perin, Ellen Cristina; Carpes, Solange Teresinha

doi:10.1590/1981-6723.19320

Cited by 6 publications

(1 citation statement)

References 42 publications

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“…The peel presented better results than those found by Corrêa et al (2019) (1.07 mgmL -1 ), who worked with acidified peel extract. These variations in antioxidant activities may be related to experimental conditions such as type of solvent, pH, and temperature, as well as the extraction technique and the utilized part of the fruit (Silva et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

The potential antioxidant activity of incorporating bacaba (Oenocarpus bacaba Mart.) extract into a nanoemulsion system with baru oil

Prando,

Hoshino,

Raiser

et al. 2023

Braz. J. Biol.

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The bacaba (Oenocarpus bacaba Mart.) peel corresponds to 15% of the whole fruit and is rich in antioxidants with potential application in product development. In nanotechnology, emulsified formulations such as nanoemulsions stand out for providing modified release and improving the bioavailability of conveyed substances. The aim of this work was to develop nanoemulsified systems from baru oil containing hydroalcoholic extract from the bacaba peel, evaluate their stability and antioxidant potential. After the HLB (Hydrophilic-lipophilic balance) determination of the baru oil, thirty-two formulations were developed, varying the proportions of surfactants, aqueous phase, and baru oil. Of those 32, 16 formed emulsified systems, and the ones with a higher amount of oil (20%) were incorporated with the BPE. The systems were submitted to stability studies to verify their viability. After that, several tests were performed, such as rheological characteristics, hydrodynamic diameter of the droplets, polydispersion index, zeta potential, and antioxidant potential by DPPH and ABTS+ radical scavenging methods. After the studies, two samples remained stable and presented a non-Newtonian pseudoplastic profile with thixotropy, hydrodynamic diameter of less than 200 nm, monodispersity, and negative zeta potential. The BPE showed antioxidant potential, with superior activity when incorporated into the nanoemulsified system. A strong negative correlation was found between the two antioxidant methods, where both demonstrated the same profile of potential antioxidant activity for the extract and formulations. The studied formulation showed that the use of BPE is a viable alternative for the development of new products based on sustainable technologies.

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Section: Discussionmentioning

confidence: 99%