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A Physicochemical Study of the Antioxidant Activity of Corn Silk Extracts

Corn silk (CS) extracts are reported to contain flavonoids (appx. 59.65 mg quercetin/g), polysaccharides (appx. 58.75 w.%), steroids (appx. 38.3 × 10(−3) to 368.9 × 10(−3) mg/mL), polyphenols (appx. 77.89 mg/GAE/g) and other functional biological substances. This study investigated the antioxidant a...

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Autores principales: Lapčík, Lubomír, Řepka, David, Lapčíková, Barbora, Sumczynski, Daniela, Gautam, Shweta, Li, Peng, Valenta, Tomáš
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10252499/
https://www.ncbi.nlm.nih.gov/pubmed/37297404
http://dx.doi.org/10.3390/foods12112159
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author Lapčík, Lubomír
Řepka, David
Lapčíková, Barbora
Sumczynski, Daniela
Gautam, Shweta
Li, Peng
Valenta, Tomáš
author_facet Lapčík, Lubomír
Řepka, David
Lapčíková, Barbora
Sumczynski, Daniela
Gautam, Shweta
Li, Peng
Valenta, Tomáš
author_sort Lapčík, Lubomír
collection PubMed
description Corn silk (CS) extracts are reported to contain flavonoids (appx. 59.65 mg quercetin/g), polysaccharides (appx. 58.75 w.%), steroids (appx. 38.3 × 10(−3) to 368.9 × 10(−3) mg/mL), polyphenols (appx. 77.89 mg/GAE/g) and other functional biological substances. This study investigated the antioxidant activity of corn silk extracts related to their functional compounds. The radical scavenging effect of corn silk extracts was evaluated by the spin-trapping electron paramagnetic resonance (EPR) technique, 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2′-azino-bis(3-ethylbenzo-thiazoline-6-sulfonate) (ABTS(•+)) free radical measurement, ferric ion-reducing antioxidant power, and copper ion reductive capacity. It was found that the maturity stage of CS plant materials and the applied extraction procedure of their bioactive compounds have a profound effect on the radical scavenging capacity. Differences in the antioxidant activity of the studied corn silk samples based on their maturity were also confirmed. The strongest DPPH radical scavenging effect was observed for the corn silk mature stage (CS-M)stage (CS-MS) (65.20 ± 0.90)%, followed by the silky stage (CS-S) (59.33 ± 0.61)% and the milky stage (CS-M) (59.20 ± 0.92)%, respectively. In general, the final maturity stage (CS-MS) provided the most potent antioxidant effect, followed by the earliest maturity stage (CS-S) and the second maturity stage (CS-M).
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spelling pubmed-102524992023-06-10 A Physicochemical Study of the Antioxidant Activity of Corn Silk Extracts Lapčík, Lubomír Řepka, David Lapčíková, Barbora Sumczynski, Daniela Gautam, Shweta Li, Peng Valenta, Tomáš Foods Article Corn silk (CS) extracts are reported to contain flavonoids (appx. 59.65 mg quercetin/g), polysaccharides (appx. 58.75 w.%), steroids (appx. 38.3 × 10(−3) to 368.9 × 10(−3) mg/mL), polyphenols (appx. 77.89 mg/GAE/g) and other functional biological substances. This study investigated the antioxidant activity of corn silk extracts related to their functional compounds. The radical scavenging effect of corn silk extracts was evaluated by the spin-trapping electron paramagnetic resonance (EPR) technique, 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2′-azino-bis(3-ethylbenzo-thiazoline-6-sulfonate) (ABTS(•+)) free radical measurement, ferric ion-reducing antioxidant power, and copper ion reductive capacity. It was found that the maturity stage of CS plant materials and the applied extraction procedure of their bioactive compounds have a profound effect on the radical scavenging capacity. Differences in the antioxidant activity of the studied corn silk samples based on their maturity were also confirmed. The strongest DPPH radical scavenging effect was observed for the corn silk mature stage (CS-M)stage (CS-MS) (65.20 ± 0.90)%, followed by the silky stage (CS-S) (59.33 ± 0.61)% and the milky stage (CS-M) (59.20 ± 0.92)%, respectively. In general, the final maturity stage (CS-MS) provided the most potent antioxidant effect, followed by the earliest maturity stage (CS-S) and the second maturity stage (CS-M). MDPI 2023-05-26 /pmc/articles/PMC10252499/ /pubmed/37297404 http://dx.doi.org/10.3390/foods12112159 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lapčík, Lubomír
Řepka, David
Lapčíková, Barbora
Sumczynski, Daniela
Gautam, Shweta
Li, Peng
Valenta, Tomáš
A Physicochemical Study of the Antioxidant Activity of Corn Silk Extracts
title A Physicochemical Study of the Antioxidant Activity of Corn Silk Extracts
title_full A Physicochemical Study of the Antioxidant Activity of Corn Silk Extracts
title_fullStr A Physicochemical Study of the Antioxidant Activity of Corn Silk Extracts
title_full_unstemmed A Physicochemical Study of the Antioxidant Activity of Corn Silk Extracts
title_short A Physicochemical Study of the Antioxidant Activity of Corn Silk Extracts
title_sort physicochemical study of the antioxidant activity of corn silk extracts
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10252499/
https://www.ncbi.nlm.nih.gov/pubmed/37297404
http://dx.doi.org/10.3390/foods12112159
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