Muestra métricas de impacto externas asociadas a la publicación. Para mayor detalle:
| Indexado |
|
||||
| DOI | 10.3390/ANTIOX13070845 | ||||
| Año | 2024 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
This study focused on the oil extraction from freeze-dried maqui (Aristotelia chilensis) by supercritical fluid extraction with carbon dioxide (SFE-CO2). The basic objective was to optimize the oil yield and the tocopherol concentration. A Box/Behnken experimental design was developed with three processing variables: supercritical pressure (74, 187, and 300 bar), temperature (35, 48, and 60 degrees C), and extracting time (30, 135, and 240 min). Multiple optimizations, based on the combination of factor levels at 274 bar, 240 min, and 60 degrees C, led to the highest oil yield and tocopherol values. The validation of the optimized conditions of maqui oil extraction led to an oil yield of 8% and values of 735, 53, and 97 (mg<middle dot>kg(-1) oil) for alpha-tocopherol, alpha-tocotrienol, and gamma-tocopherol, respectively. A higher concentration of tocopherol compounds was observed when compared to the employment of the conventional extracting method. The optimized SFE-CO2 method led to an oil extract exhibiting higher Hydrophilic-Oxygen Radical Absorbance Capacity (H-ORAC) assay and total phenol content (22 mu mol Trolox equivalents<middle dot>g(-1) oil and 28 mg gallic acid equivalents<middle dot>g(-1) oil) than the oil obtained by the conventional procedure. A practical and accurate oil extraction is proposed for obtaining tocopherol-enriched oil including high concentrations of valuable lipophilic antioxidants.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Sanchez, Camila | - |
Universidad de Chile - Chile
|
| 2 | RODRIGUEZ-MELIS, ALICIA VERONICA | Mujer |
Universidad de Chile - Chile
|
| 3 | Reinoso, Francisca | - |
Universidad de Chile - Chile
|
| 4 | Dovale-Rosabal, Gretel | Mujer |
Universidad de Chile - Chile
|
| 5 | ROMERO-PALACIOS, NALDA MARCELA | Mujer |
Universidad de Chile - Chile
|
| 6 | Espinosa, Alejandra | - |
Universidad de Chile - Chile
|
| 7 | PANDO-SAN MARTIN, MARIA ELISA | Mujer |
Universidad de Chile - Chile
|
| 8 | Claria, Benjamin | - |
Universidad de Chile - Chile
|
| 9 | VALENZUELA-DIAZ, RODRIGO HERNAN | Hombre |
Universidad de Chile - Chile
|
| 10 | CHAR-AUBRY, CIELO DOLORES | - |
Universidad de Chile - Chile
|
| 11 | Aubourg, Santiago P. | Hombre |
Marine Res Inst CSIC - España
CSIC - Instituto de Investigaciones Marinas (IIM) - España |
| Fuente |
|---|
| FONDECYT |
| Universidad de Chile |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| CONCURSO VICERRECTORIA DE INVESTIGACION Y DESARROLLO (VID; University of Chile) |
| Agradecimiento |
|---|
| This research was funded by FONDECYT: Regular No 1221633 and Concurso Vicerrectoria de Investigacion y Desarrollo (VID; University of Chile), grant AYV10/01-22. |
| This research was funded by FONDECYT: Regular N\u00B01221633 and Concurso Vicerrector\u00EDa de Investigaci\u00F3n y Desarrollo (VID; University of Chile), grant AYV10/01-22. |