Comparative analysis of biological potential of acerola by-product extracts obtained by hydrothermal and gas-expanded liquid extraction

The acerola non-pomace, a by-product from the juice clarification step and rich in phenolic compounds and ascorbic acid, was investigated for its biological potential through in vitro tests. Extracts were obtained using hydrothermal extraction (HT) at 121°C as well as CO2-expanded ethanol (GXL) at 40°C. The GXL extract contained 159 mg/g of ascorbic acid, while the HT extract showed 70 mg/g. Catechin was found only in the HT extract, and quercetin only in the GXL extract. Both extracts exhibited similar antiglycemic potential, but the GXL extract showed twice the neuroprotective potential against acetylcholinesterase (AChE, IC50=302 μg/mL) and lipoxygenase (LOX, IC50=227 μg/mL) activities. In human breast cancer cells (MDA-MB-231), the GXL extract demonstrated better antitumor potential with an IC50 of 100 μg/mL compared to 250 μg/mL for the HT extract.

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Bibliographic Details
Main Authors: Alves Borges, Otília Mônica, Cesca, Karina, Benvenutti, Laís, Oliveira de Sousa, Matheus Henrique, Fernandes de Moura, Neusa, Sánchez-Martínez, J. David, Cifuentes, Alejandro, Zielinski, Acácio A.F., Poletto, Patrícia
Other Authors: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil)
Format: artículo biblioteca
Language:English
Published: Elsevier 2024
Online Access:http://hdl.handle.net/10261/372741
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