Combining Ultrafiltration and Nanofiltration to Obtain a Concentrated Extract of Purified Polyphenols from Wet Olive Pomace
Despite the environmental concerns raised every year by the generation of high volumes of wet olive pomace, it contains valuable phenolic compounds that are essential for the valorization of this by-product. In this work, an integrated process to recover phenolic compounds from wet olive pomace is p...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/13/2/119 |
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| author | Carmen M. Sánchez-Arévalo Ane Pérez García-Serrano María Cinta Vincent-Vela Silvia Álvarez-Blanco |
| author_facet | Carmen M. Sánchez-Arévalo Ane Pérez García-Serrano María Cinta Vincent-Vela Silvia Álvarez-Blanco |
| author_sort | Carmen M. Sánchez-Arévalo |
| collection | DOAJ |
| description | Despite the environmental concerns raised every year by the generation of high volumes of wet olive pomace, it contains valuable phenolic compounds that are essential for the valorization of this by-product. In this work, an integrated process to recover phenolic compounds from wet olive pomace is proposed. It consists of ultrasound-assisted solid-liquid extraction, followed by ultrafiltration and nanofiltration. Several commercial membranes were studied at different operational conditions. The ultrafiltration stage allowed the purification of biophenols, which were obtained in the permeate stream. Regarding organic matter, satisfactory rejection values were obtained with both commercial UH030 and UP005 membranes (Microdyn Nadir), but the latter provided more efficient purification and higher values of permeate flux, above 18 L·h<sup>−1</sup>·m<sup>−2</sup> at 2.5 bar and 1.5 m·s<sup>−1</sup>. Later, this permeate stream was concentrated by means of a nanofiltration process, obtaining polyphenol rejection values that surpassed 85% with the commercial NF270 membrane (DuPont), then achieving the concentration of the previously purified polyphenols. |
| first_indexed | 2024-03-11T08:27:43Z |
| format | Article |
| id | doaj.art-b77042cb0bcc4ec1afc16bc299cca785 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-11T08:27:43Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-b77042cb0bcc4ec1afc16bc299cca7852023-11-16T22:01:37ZengMDPI AGMembranes2077-03752023-01-0113211910.3390/membranes13020119Combining Ultrafiltration and Nanofiltration to Obtain a Concentrated Extract of Purified Polyphenols from Wet Olive PomaceCarmen M. Sánchez-Arévalo0Ane Pérez García-Serrano1María Cinta Vincent-Vela2Silvia Álvarez-Blanco3Research Institute for Industrial, Radiophysical and Environmental Safety (ISIRYM), Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, SpainResearch Institute for Industrial, Radiophysical and Environmental Safety (ISIRYM), Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, SpainResearch Institute for Industrial, Radiophysical and Environmental Safety (ISIRYM), Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, SpainResearch Institute for Industrial, Radiophysical and Environmental Safety (ISIRYM), Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, SpainDespite the environmental concerns raised every year by the generation of high volumes of wet olive pomace, it contains valuable phenolic compounds that are essential for the valorization of this by-product. In this work, an integrated process to recover phenolic compounds from wet olive pomace is proposed. It consists of ultrasound-assisted solid-liquid extraction, followed by ultrafiltration and nanofiltration. Several commercial membranes were studied at different operational conditions. The ultrafiltration stage allowed the purification of biophenols, which were obtained in the permeate stream. Regarding organic matter, satisfactory rejection values were obtained with both commercial UH030 and UP005 membranes (Microdyn Nadir), but the latter provided more efficient purification and higher values of permeate flux, above 18 L·h<sup>−1</sup>·m<sup>−2</sup> at 2.5 bar and 1.5 m·s<sup>−1</sup>. Later, this permeate stream was concentrated by means of a nanofiltration process, obtaining polyphenol rejection values that surpassed 85% with the commercial NF270 membrane (DuPont), then achieving the concentration of the previously purified polyphenols.https://www.mdpi.com/2077-0375/13/2/119ultrafiltrationnanofiltrationphenolic compoundswet olive pomaceintegrated processrejection |
| spellingShingle | Carmen M. Sánchez-Arévalo Ane Pérez García-Serrano María Cinta Vincent-Vela Silvia Álvarez-Blanco Combining Ultrafiltration and Nanofiltration to Obtain a Concentrated Extract of Purified Polyphenols from Wet Olive Pomace Membranes ultrafiltration nanofiltration phenolic compounds wet olive pomace integrated process rejection |
| title | Combining Ultrafiltration and Nanofiltration to Obtain a Concentrated Extract of Purified Polyphenols from Wet Olive Pomace |
| title_full | Combining Ultrafiltration and Nanofiltration to Obtain a Concentrated Extract of Purified Polyphenols from Wet Olive Pomace |
| title_fullStr | Combining Ultrafiltration and Nanofiltration to Obtain a Concentrated Extract of Purified Polyphenols from Wet Olive Pomace |
| title_full_unstemmed | Combining Ultrafiltration and Nanofiltration to Obtain a Concentrated Extract of Purified Polyphenols from Wet Olive Pomace |
| title_short | Combining Ultrafiltration and Nanofiltration to Obtain a Concentrated Extract of Purified Polyphenols from Wet Olive Pomace |
| title_sort | combining ultrafiltration and nanofiltration to obtain a concentrated extract of purified polyphenols from wet olive pomace |
| topic | ultrafiltration nanofiltration phenolic compounds wet olive pomace integrated process rejection |
| url | https://www.mdpi.com/2077-0375/13/2/119 |
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