Antioxidant Power on Dermal Cells by Textiles Dyed with an Onion (<i>Allium cepa</i> L.) Skin Extract

In this study, the phenol loading and antioxidant activity of wool yarn prepared with the aqueous extract of onion (<i>Allium cepa</i> L.) skin was enhanced by implementing the dyeing process with the use of alum as a mordant. Spectrophotometric and chromatographic methods were applied f...

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Autores principales:	Claudia Volpi, Desirée Bartolini, Virginia Brighenti, Francesco Galli, Matteo Tiecco, Federica Pellati, Catia Clementi, Roccaldo Sardella
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	<i>Allium cepa</i> L. onion polyphenols biofunctional textiles mordant ROS Therapeutics. Pharmacology RM1-950
Acceso en línea:	https://doaj.org/article/2a2c5d3e082e41a8b85f57a2a50ac89e
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spelling	oai:doaj.org-article:2a2c5d3e082e41a8b85f57a2a50ac89e2021-11-25T16:25:26ZAntioxidant Power on Dermal Cells by Textiles Dyed with an Onion (<i>Allium cepa</i> L.) Skin Extract10.3390/antiox101116552076-3921https://doaj.org/article/2a2c5d3e082e41a8b85f57a2a50ac89e2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3921/10/11/1655https://doaj.org/toc/2076-3921In this study, the phenol loading and antioxidant activity of wool yarn prepared with the aqueous extract of onion (<i>Allium cepa</i> L.) skin was enhanced by implementing the dyeing process with the use of alum as a mordant. Spectrophotometric and chromatographic methods were applied for the characterization of polyphenolic substances loaded on the wool yarn. The antioxidant/anti-inflammatory properties were evaluated by determining the level of intra- and extra-cellular reactive oxygen species (ROS) production in keratinocytes and dermal fibroblasts pre-treated with lipopolysaccharide put in contact with artificial sweat. An elevated dye uptake on wool was observed for the pre-mordanted sample, as demonstrated by high absorbance values in the UV-Visible spectral range. Chromatographic results showed that protocatechuic acid and its glucoside were the main phenolic acid released in artificial sweat by the wool yarns, while quercetin-4′-glucoside and its aglycone quercetin were more retained. The extract released from the textile immersed in artificial sweat showed a significant reducing effect on the intra-and extracellular ROS levels in the two cell lines considered. Cytofluorimetric analyses demonstrated that the selected mordant was safe at the concentration used in the dyeing procedure. Therefore, alum pre-mordanted textiles dyed with onion-skin extracts may represent an interesting tool against skin diseases.Claudia VolpiDesirée BartoliniVirginia BrighentiFrancesco GalliMatteo TieccoFederica PellatiCatia ClementiRoccaldo SardellaMDPI AGarticle<i>Allium cepa</i> L.onionpolyphenolsbiofunctional textilesmordantROSTherapeutics. PharmacologyRM1-950ENAntioxidants, Vol 10, Iss 1655, p 1655 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	<i>Allium cepa</i> L. onion polyphenols biofunctional textiles mordant ROS Therapeutics. Pharmacology RM1-950
spellingShingle	<i>Allium cepa</i> L. onion polyphenols biofunctional textiles mordant ROS Therapeutics. Pharmacology RM1-950 Claudia Volpi Desirée Bartolini Virginia Brighenti Francesco Galli Matteo Tiecco Federica Pellati Catia Clementi Roccaldo Sardella Antioxidant Power on Dermal Cells by Textiles Dyed with an Onion (<i>Allium cepa</i> L.) Skin Extract
description	In this study, the phenol loading and antioxidant activity of wool yarn prepared with the aqueous extract of onion (<i>Allium cepa</i> L.) skin was enhanced by implementing the dyeing process with the use of alum as a mordant. Spectrophotometric and chromatographic methods were applied for the characterization of polyphenolic substances loaded on the wool yarn. The antioxidant/anti-inflammatory properties were evaluated by determining the level of intra- and extra-cellular reactive oxygen species (ROS) production in keratinocytes and dermal fibroblasts pre-treated with lipopolysaccharide put in contact with artificial sweat. An elevated dye uptake on wool was observed for the pre-mordanted sample, as demonstrated by high absorbance values in the UV-Visible spectral range. Chromatographic results showed that protocatechuic acid and its glucoside were the main phenolic acid released in artificial sweat by the wool yarns, while quercetin-4′-glucoside and its aglycone quercetin were more retained. The extract released from the textile immersed in artificial sweat showed a significant reducing effect on the intra-and extracellular ROS levels in the two cell lines considered. Cytofluorimetric analyses demonstrated that the selected mordant was safe at the concentration used in the dyeing procedure. Therefore, alum pre-mordanted textiles dyed with onion-skin extracts may represent an interesting tool against skin diseases.
format	article
author	Claudia Volpi Desirée Bartolini Virginia Brighenti Francesco Galli Matteo Tiecco Federica Pellati Catia Clementi Roccaldo Sardella
author_facet	Claudia Volpi Desirée Bartolini Virginia Brighenti Francesco Galli Matteo Tiecco Federica Pellati Catia Clementi Roccaldo Sardella
author_sort	Claudia Volpi
title	Antioxidant Power on Dermal Cells by Textiles Dyed with an Onion (<i>Allium cepa</i> L.) Skin Extract
title_short	Antioxidant Power on Dermal Cells by Textiles Dyed with an Onion (<i>Allium cepa</i> L.) Skin Extract
title_full	Antioxidant Power on Dermal Cells by Textiles Dyed with an Onion (<i>Allium cepa</i> L.) Skin Extract
title_fullStr	Antioxidant Power on Dermal Cells by Textiles Dyed with an Onion (<i>Allium cepa</i> L.) Skin Extract
title_full_unstemmed	Antioxidant Power on Dermal Cells by Textiles Dyed with an Onion (<i>Allium cepa</i> L.) Skin Extract
title_sort	antioxidant power on dermal cells by textiles dyed with an onion (<i>allium cepa</i> l.) skin extract
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/2a2c5d3e082e41a8b85f57a2a50ac89e
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Antioxidant Power on Dermal Cells by Textiles Dyed with an Onion (<i>Allium cepa</i> L.) Skin Extract

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