Quinones as Strecker degradation reagents in wine oxidation processes
Copyright © 2017 Elsevier Ltd. All rights reserved..
The Strecker aldehydes formed during the reaction between α-amino acids (phenylalanine or methionine) and either gallic acid, caffeic acid or (+)-catechin ortho-quinones were evaluated in wine-model systems. It was demonstrated that phenylacetaldehyde was formed by quinone intermediates at wine pH. The highest amounts of phenylacetaldehyde during the 10days of experiment (69±5µg/L/day; 7x>Control) were obtained from (+) catechin, followed by gallic acid (61±4µg/L/day; 6x>Control) and caffeic acid (41±4µg/L/day; 4x>Control). The intermediate structures delivered from the reaction of ortho-quinones with α-amino acids were demonstrated by MSn.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2017 |
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| Erschienen: |
2017 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:228 |
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| Enthalten in: |
Food chemistry - 228(2017) vom: 01. Aug., Seite 618-624 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Oliveira, Carla Maria [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 01.05.2017 Date Revised 02.12.2018 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.foodchem.2017.02.034 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM270074783 |
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| 500 | |a Date Revised 02.12.2018 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2017 Elsevier Ltd. All rights reserved. | ||
| 520 | |a The Strecker aldehydes formed during the reaction between α-amino acids (phenylalanine or methionine) and either gallic acid, caffeic acid or (+)-catechin ortho-quinones were evaluated in wine-model systems. It was demonstrated that phenylacetaldehyde was formed by quinone intermediates at wine pH. The highest amounts of phenylacetaldehyde during the 10days of experiment (69±5µg/L/day; 7x>Control) were obtained from (+) catechin, followed by gallic acid (61±4µg/L/day; 6x>Control) and caffeic acid (41±4µg/L/day; 4x>Control). The intermediate structures delivered from the reaction of ortho-quinones with α-amino acids were demonstrated by MSn | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a (+)-Catechin (PubChem CID: 9064) | |
| 650 | 4 | |a Amino acids | |
| 650 | 4 | |a Caffeic acid (PubChem CID: 689043) | |
| 650 | 4 | |a Gallic acid (PubChem CID: 370) | |
| 650 | 4 | |a Oxidation | |
| 650 | 4 | |a Oxygen | |
| 650 | 4 | |a Phenolics | |
| 650 | 4 | |a Quinones | |
| 650 | 4 | |a Strecker aldehydes | |
| 650 | 4 | |a Wine | |
| 650 | 7 | |a Amino Acids |2 NLM | |
| 650 | 7 | |a Indicators and Reagents |2 NLM | |
| 650 | 7 | |a Quinones |2 NLM | |
| 700 | 1 | |a Santos, Sónia A O |e verfasserin |4 aut | |
| 700 | 1 | |a Silvestre, Armando J D |e verfasserin |4 aut | |
| 700 | 1 | |a Barros, António S |e verfasserin |4 aut | |
| 700 | 1 | |a Ferreira, António César Silva |e verfasserin |4 aut | |
| 700 | 1 | |a Silva, Artur M S |e verfasserin |4 aut | |
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