Increasing catechin and procyanindin accumulation in high-CO 2-treated Fragaria vesca strawberries
This paper deals with the impact of low temperature and high CO 2 levels on flavonols, proanthocyanidins, and anthocyanins, synthesized via branched pathways from common precursors, in strawberries (Fragaria vesca L.). Flavonoids were identified with Q-TOF equipment and quantified by HPLC-quadrupole...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión enviada para evaluación y publicación |
| Fecha de publicación: | 2012 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/62951 |
| Acceso en línea: | http://hdl.handle.net/10261/62951 |
| Access Level: | acceso abierto |
| Palabra clave: | Flavonoids Proanthocyanidins Strawberries High CO2 Ascorbic acid Mass spectroscopy Antioxidant activity |
| Sumario: | This paper deals with the impact of low temperature and high CO 2 levels on flavonols, proanthocyanidins, and anthocyanins, synthesized via branched pathways from common precursors, in strawberries (Fragaria vesca L.). Flavonoids were identified with Q-TOF equipment and quantified by HPLC-quadrupole. Proanthocyanins B1 and B3 accumulated in CO 2-treated strawberries, whereas in untreated (air) fruit, flavonoid production was redirected toward anthocyanin accumulation with a sharp decrease in catechin and procyanidin B3 levels. Moreover, in CO 2-treated fruit, mainly in those with 20% CO 2, anthocyanin accumulation did not decline. Due to its antifungal activity, catechin induction in CO 2-treated strawberries could explain the capacity of high CO 2 treatments to reduce fungal decay. Ascorbic acid content increased in 40% CO 2-treated fruits, whereas in those treated with 20% CO 2 an increase in flavonol content was observed. Despite these differences, similar antioxidant capacities were found in untreated and CO 2-treated Mara de Bois strawberries. |
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