Obtainment of Flavonoid-Enriched Fractions from Maqui (<i>Aristotelia chilensis</i>) and Murta (<i>Ugni molinae</i>) Extracts via Preparative HPLC and Evaluation of Their Anti-Inflammatory Effects in Cell-Based Assays
Polyphenols exert anti-inflammatory and antioxidant effects by modulating cell signalling pathways and transcription factors involved in inflammatory bowel disease (IBD). However, their stability during digestion can be compromised. Polymer coatings like chitosan (-C) help preserve their stability....
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MDPI AG
2025-05-01
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| Series: | Antioxidants |
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| Online Access: | https://www.mdpi.com/2076-3921/14/5/600 |
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| author | Amador Alburquenque Carolina Busch Gabriela Gómez-Lillo Alexander Gamboa Camilo Perez Nelson Caro Fuentes Martin Gotteland Lilian Abugoch Cristian Tapia |
| author_facet | Amador Alburquenque Carolina Busch Gabriela Gómez-Lillo Alexander Gamboa Camilo Perez Nelson Caro Fuentes Martin Gotteland Lilian Abugoch Cristian Tapia |
| author_sort | Amador Alburquenque |
| collection | DOAJ |
| description | Polyphenols exert anti-inflammatory and antioxidant effects by modulating cell signalling pathways and transcription factors involved in inflammatory bowel disease (IBD). However, their stability during digestion can be compromised. Polymer coatings like chitosan (-C) help preserve their stability. Maqui (<i>Aristotelia chilensis</i>) and murta (<i>Ugni molinae</i>) are rich in antioxidant and anti-inflammatory compounds. This work aims to obtain extracts (E) and blends (B) enriched in delphinidin and quercetin glucosides from maqui (Ma) and murta (Mu) crude extracts using preparative chromatography methodology (Prep-HPLC) and to evaluate their effectiveness through in vitro and cellular assays. HPLC-DAD analysis revealed a marked increase in phenolic compound concentration in the BEMaMu and BCMaMu extract blends. Total quercetin glycosides (TQG) increased by 11-fold, and total anthocyanins increased by approximately 8-fold compared to the fruit blend (BMaMu). BCMaMu exhibited a significantly higher ORAC value compared to the estimated additive mixture, suggesting a synergistic effect. No cytotoxicity was observed for BEMaMu, BCMaMu, and their chitosan-coated versions (BEMaMu-C and BCMaMu-C) in Caco-2 and HT29-MTX-E12 cells at concentrations of 0.1–50 mg/mL. Notably, only chitosan-coated BCMaMu inhibited NF-κB expression and activated Nrf2 in TNF-α-challenged Caco-2 cells at 0.1 and 0.5 mg/mL. |
| format | Article |
| id | doaj-art-b45ad70a8d744d08a1700c5e3e9635a0 |
| institution | DOAJ |
| issn | 2076-3921 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Antioxidants |
| spelling | doaj-art-b45ad70a8d744d08a1700c5e3e9635a02025-08-20T03:14:39ZengMDPI AGAntioxidants2076-39212025-05-0114560010.3390/antiox14050600Obtainment of Flavonoid-Enriched Fractions from Maqui (<i>Aristotelia chilensis</i>) and Murta (<i>Ugni molinae</i>) Extracts via Preparative HPLC and Evaluation of Their Anti-Inflammatory Effects in Cell-Based AssaysAmador Alburquenque0Carolina Busch1Gabriela Gómez-Lillo2Alexander Gamboa3Camilo Perez4Nelson Caro Fuentes5Martin Gotteland6Lilian Abugoch7Cristian Tapia8Department of Food Science and Chemical Technology, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Dr. Carlos Lorca Tobar 964, Independencia, Santiago 8380494, ChileDepartment of Food Science and Chemical Technology, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Dr. Carlos Lorca Tobar 964, Independencia, Santiago 8380494, ChileDepartment of Nutrition, Faculty of Medicine, University of Chile, Av. Independencia 1027, Independencia, Santiago 8380453, ChileDepartment of Environmental Sciences, Faculty of Chemistry and Biology, University of Santiago de Chile, Avenida Libertador Bernardo O’Higgins nº 3363, Estación Central, Santiago 9170022, ChileDepartment of Food Science and Chemical Technology, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Dr. Carlos Lorca Tobar 964, Independencia, Santiago 8380494, ChileCentro de Investigación Austral Biotech, Facultad de Ciencias, Universidad Santo Tomás, Avenida Ejército 146, Santiago 8370003, ChileDepartment of Nutrition, Faculty of Medicine, University of Chile, Av. Independencia 1027, Independencia, Santiago 8380453, ChileDepartment of Food Science and Chemical Technology, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Dr. Carlos Lorca Tobar 964, Independencia, Santiago 8380494, ChileDepartment of Food Science and Chemical Technology, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Dr. Carlos Lorca Tobar 964, Independencia, Santiago 8380494, ChilePolyphenols exert anti-inflammatory and antioxidant effects by modulating cell signalling pathways and transcription factors involved in inflammatory bowel disease (IBD). However, their stability during digestion can be compromised. Polymer coatings like chitosan (-C) help preserve their stability. Maqui (<i>Aristotelia chilensis</i>) and murta (<i>Ugni molinae</i>) are rich in antioxidant and anti-inflammatory compounds. This work aims to obtain extracts (E) and blends (B) enriched in delphinidin and quercetin glucosides from maqui (Ma) and murta (Mu) crude extracts using preparative chromatography methodology (Prep-HPLC) and to evaluate their effectiveness through in vitro and cellular assays. HPLC-DAD analysis revealed a marked increase in phenolic compound concentration in the BEMaMu and BCMaMu extract blends. Total quercetin glycosides (TQG) increased by 11-fold, and total anthocyanins increased by approximately 8-fold compared to the fruit blend (BMaMu). BCMaMu exhibited a significantly higher ORAC value compared to the estimated additive mixture, suggesting a synergistic effect. No cytotoxicity was observed for BEMaMu, BCMaMu, and their chitosan-coated versions (BEMaMu-C and BCMaMu-C) in Caco-2 and HT29-MTX-E12 cells at concentrations of 0.1–50 mg/mL. Notably, only chitosan-coated BCMaMu inhibited NF-κB expression and activated Nrf2 in TNF-α-challenged Caco-2 cells at 0.1 and 0.5 mg/mL.https://www.mdpi.com/2076-3921/14/5/600polyphenolsmaquimurtachitosanpre-HPLCORAC |
| spellingShingle | Amador Alburquenque Carolina Busch Gabriela Gómez-Lillo Alexander Gamboa Camilo Perez Nelson Caro Fuentes Martin Gotteland Lilian Abugoch Cristian Tapia Obtainment of Flavonoid-Enriched Fractions from Maqui (<i>Aristotelia chilensis</i>) and Murta (<i>Ugni molinae</i>) Extracts via Preparative HPLC and Evaluation of Their Anti-Inflammatory Effects in Cell-Based Assays Antioxidants polyphenols maqui murta chitosan pre-HPLC ORAC |
| title | Obtainment of Flavonoid-Enriched Fractions from Maqui (<i>Aristotelia chilensis</i>) and Murta (<i>Ugni molinae</i>) Extracts via Preparative HPLC and Evaluation of Their Anti-Inflammatory Effects in Cell-Based Assays |
| title_full | Obtainment of Flavonoid-Enriched Fractions from Maqui (<i>Aristotelia chilensis</i>) and Murta (<i>Ugni molinae</i>) Extracts via Preparative HPLC and Evaluation of Their Anti-Inflammatory Effects in Cell-Based Assays |
| title_fullStr | Obtainment of Flavonoid-Enriched Fractions from Maqui (<i>Aristotelia chilensis</i>) and Murta (<i>Ugni molinae</i>) Extracts via Preparative HPLC and Evaluation of Their Anti-Inflammatory Effects in Cell-Based Assays |
| title_full_unstemmed | Obtainment of Flavonoid-Enriched Fractions from Maqui (<i>Aristotelia chilensis</i>) and Murta (<i>Ugni molinae</i>) Extracts via Preparative HPLC and Evaluation of Their Anti-Inflammatory Effects in Cell-Based Assays |
| title_short | Obtainment of Flavonoid-Enriched Fractions from Maqui (<i>Aristotelia chilensis</i>) and Murta (<i>Ugni molinae</i>) Extracts via Preparative HPLC and Evaluation of Their Anti-Inflammatory Effects in Cell-Based Assays |
| title_sort | obtainment of flavonoid enriched fractions from maqui i aristotelia chilensis i and murta i ugni molinae i extracts via preparative hplc and evaluation of their anti inflammatory effects in cell based assays |
| topic | polyphenols maqui murta chitosan pre-HPLC ORAC |
| url | https://www.mdpi.com/2076-3921/14/5/600 |
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