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A Comprehensive Study on the Chemical Characterization and Neuroprotective Evaluation of Pracaxi Nuts Extracts Obtained by a Sustainable Approach

by Barrientos, Ruth , Ibáñez, Elena , Valdés, Alberto , Cifuentes, Alejandro , Mohammadnezhad, Pouya , Block, Jane

in Bioactive compounds / Biological activity / Biorefineries / biorefining / cakes / Carbon dioxide / Chemicals / Chromatography / Ecosystems / Efficiency / Enzymes / Ethanol / Fatty acids / green extraction / Health promotion / Instrument industry / Laboratories / lipidomics / Lipids / liquids / Neuroprotection / neuroprotective activity / neuroprotective effect / Nitrogen / Nuts / oils / Pentaclethra macroloba / pracaxi nuts / pressurized liquid extraction / Raw materials / Response surface methodology / Saponins / Solvents / Spermidine / spermidine phenolamides / supercritical fluid extraction / Supercritical fluids / Supercritical gas extraction / triterpenoid saponins / Variance analysis

2023

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A Comprehensive Study on the Chemical Characterization and Neuroprotective Evaluation of Pracaxi Nuts Extracts Obtained by a Sustainable Approach

by Barrientos, Ruth , Ibáñez, Elena , Valdés, Alberto , Cifuentes, Alejandro , Mohammadnezhad, Pouya , Block, Jane

2023

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A Comprehensive Study on the Chemical Characterization and Neuroprotective Evaluation of Pracaxi Nuts Extracts Obtained by a Sustainable Approach

by Barrientos, Ruth , Ibáñez, Elena , Valdés, Alberto , Cifuentes, Alejandro , Mohammadnezhad, Pouya , Block, Jane

2023

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Journal Article

A Comprehensive Study on the Chemical Characterization and Neuroprotective Evaluation of Pracaxi Nuts Extracts Obtained by a Sustainable Approach

Barrientos, Ruth,

Ibáñez, Elena,

Valdés, Alberto,

Cifuentes, Alejandro,

Mohammadnezhad, Pouya,

Block, Jane

2023

Overview

The Amazonian Pentaclethra macroloba (Willd.) Kuntze nuts contain a lipidic fraction with health-promoting effects, but little is known about the bioactivity of other constituents. In this study, the lipidic fraction obtained using supercritical fluid extraction (SFE) with CO2 was chemically characterized by using lipidomics techniques. The SFE-CO2 residue, named as pracaxi cake, was re-extracted by pressurized liquid extraction following a biorefinery approach. Using a response surface methodology and based on the extraction yield and different in vitro assays, two optimum conditions were obtained: 80% and 12.5% of ethanol at 180 °C. Under these conditions, extraction yield and different in vitro measurements related to neuroprotection were assessed. Chemical characterization of these extracts suggested the presence of triterpenoid saponins and spermidine phenolamides, which were not previously reported in pracaxi nuts. These results suggest that pracaxi oil extraction by-products are a valuable source of bioactive compounds with neuroprotective potential.

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Publisher

MDPI AG,MDPI

Subject

Bioactive compounds

/ Biological activity

/ cakes