Optimization of low thermal treatments to increase hydrophilic phenols in the Alperujo liquid fraction
Hydrophilic phenols are the main bioactive compounds in alperujo. Among them, 3,4-Dihydroxyphenylglycol (DHPG), Hydroxytyrosol (HT) and Tyrosol (Ty), are the most relevant and deeply studied. These compounds exhibit high antioxidant capacity and a wide range of health benefits as well as technologic...
| Main Authors: | , , , |
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| Format: | Artículo |
| Language: | Inglés |
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Instituto de la Grasa, CSIC
2025
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| Online Access: | http://hdl.handle.net/20.500.12123/23208 https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1968 https://doi.org/10.3989/gya.0227221 |
| _version_ | 1855487086195376128 |
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| author | Rodriguez, Manuel Cornejo, Vanina Rodríguez Gutiérrez, Guillermo Monetta, Pablo Miguel |
| author_browse | Cornejo, Vanina Monetta, Pablo Miguel Rodriguez, Manuel Rodríguez Gutiérrez, Guillermo |
| author_facet | Rodriguez, Manuel Cornejo, Vanina Rodríguez Gutiérrez, Guillermo Monetta, Pablo Miguel |
| author_sort | Rodriguez, Manuel |
| collection | INTA Digital |
| description | Hydrophilic phenols are the main bioactive compounds in alperujo. Among them, 3,4-Dihydroxyphenylglycol (DHPG), Hydroxytyrosol (HT) and Tyrosol (Ty), are the most relevant and deeply studied. These compounds exhibit high antioxidant capacity and a wide range of health benefits as well as technologically promising properties. Given that, their recovery represents an attractive opportunity to valorize this by-product. In this work low thermal treatments were applied to alperujo in order to obtain phenol-enriched liquid fractions. Optimization assays combining different levels of temperature (30 to 90 ºC), time (60 to 180 min) and water content (70 to 90%), followed by response surface methodologies were performed. The results indicated that by applying optimal conditions, is possible to obtain theoretical yields of Total phenols, DHPG, HT and Ty of 2.4, 957.8, 3.4 and 6.4 times greater, respectively, than raw dry alperujo. Interestingly, all the evaluated conditions can be reproduced with low investment in a standard olive oil industry. |
| format | Artículo |
| id | INTA23208 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Instituto de la Grasa, CSIC |
| publisherStr | Instituto de la Grasa, CSIC |
| record_format | dspace |
| spelling | INTA232082025-07-29T14:29:31Z Optimization of low thermal treatments to increase hydrophilic phenols in the Alperujo liquid fraction Rodriguez, Manuel Cornejo, Vanina Rodríguez Gutiérrez, Guillermo Monetta, Pablo Miguel Olea europaea Phenolic Compounds By-products Heat Treatment Bioactive Compounds Compuestos Fenólicos Subproductos Tratamiento Térmico Compuestos Bioactivos Olivo Alperujo Hydroxytyrosol Hydrophilic phenols are the main bioactive compounds in alperujo. Among them, 3,4-Dihydroxyphenylglycol (DHPG), Hydroxytyrosol (HT) and Tyrosol (Ty), are the most relevant and deeply studied. These compounds exhibit high antioxidant capacity and a wide range of health benefits as well as technologically promising properties. Given that, their recovery represents an attractive opportunity to valorize this by-product. In this work low thermal treatments were applied to alperujo in order to obtain phenol-enriched liquid fractions. Optimization assays combining different levels of temperature (30 to 90 ºC), time (60 to 180 min) and water content (70 to 90%), followed by response surface methodologies were performed. The results indicated that by applying optimal conditions, is possible to obtain theoretical yields of Total phenols, DHPG, HT and Ty of 2.4, 957.8, 3.4 and 6.4 times greater, respectively, than raw dry alperujo. Interestingly, all the evaluated conditions can be reproduced with low investment in a standard olive oil industry. Los fenoles hidrofílicos representan los principales compuestos bioactivos del alperujo. Los más relevantes son 3,4-Dihidroxife-nilglicol (DHFG), Hidroxitirosol (HT) y Tirosol (Ti). Estos compuestos presentan alta capacidad antioxidante, beneficios para la salud e importantes propiedades tecnológicas, por ello su recuperación representa una alternativa para la valorización de este subproducto. En este trabajo, se aplicaron al alperujo tratamientos térmicos para obtener fracciones líquidas enriquecidas con compuestos fenólicos. Se realizaron ensayos combinando niveles de temperatura (30 ºC a 90 ºC), tiempo (60 min a 180 min) y humedad del alperujo (70 % a 90 %), seguidos de metodologías de superficie de respuesta. Los resultados indicaron que, mediante la aplicación de las condiciones óptimas, es posible obtener rendimientos teóricos de fenoles totales, DHFG, HT y Ti, 2.4, 957.8, 3.4 y 6.4 veces superiores a los obtenidos a partir del alperujo inicial. Es destacable que las condiciones establecidas, se pueden reproducir con bajo costo en una industria olivícola estándar. EEA San Juan Fil: Rodriguez, Manuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Juan; Argentina Fil: Cornejo, Vanina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Juan; Argentina Fil: Rodríguez Gutiérrez, Guillermo. CSIC. Instituto de la Grasa. Departamento de Fitoquímicos; España Fil: Monetta, Pablo Miguel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Juan; Argentina 2025-07-29T14:26:21Z 2025-07-29T14:26:21Z 2023-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/23208 https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1968 0017-3495 1988-4214 https://doi.org/10.3989/gya.0227221 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Instituto de la Grasa, CSIC Grasas y aceites 74 (1) : e491. (January-March 2023) |
| spellingShingle | Olea europaea Phenolic Compounds By-products Heat Treatment Bioactive Compounds Compuestos Fenólicos Subproductos Tratamiento Térmico Compuestos Bioactivos Olivo Alperujo Hydroxytyrosol Rodriguez, Manuel Cornejo, Vanina Rodríguez Gutiérrez, Guillermo Monetta, Pablo Miguel Optimization of low thermal treatments to increase hydrophilic phenols in the Alperujo liquid fraction |
| title | Optimization of low thermal treatments to increase hydrophilic phenols in the Alperujo liquid fraction |
| title_full | Optimization of low thermal treatments to increase hydrophilic phenols in the Alperujo liquid fraction |
| title_fullStr | Optimization of low thermal treatments to increase hydrophilic phenols in the Alperujo liquid fraction |
| title_full_unstemmed | Optimization of low thermal treatments to increase hydrophilic phenols in the Alperujo liquid fraction |
| title_short | Optimization of low thermal treatments to increase hydrophilic phenols in the Alperujo liquid fraction |
| title_sort | optimization of low thermal treatments to increase hydrophilic phenols in the alperujo liquid fraction |
| topic | Olea europaea Phenolic Compounds By-products Heat Treatment Bioactive Compounds Compuestos Fenólicos Subproductos Tratamiento Térmico Compuestos Bioactivos Olivo Alperujo Hydroxytyrosol |
| url | http://hdl.handle.net/20.500.12123/23208 https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1968 https://doi.org/10.3989/gya.0227221 |
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