Title
Effect of germination and elicitation on phenolic composition and bioactivity of kidney beans
Date Issued
01 April 2015
Access level
open access
Resource Type
journal article
Author(s)
Dueñas M.
Limón R.
Peñas E.
Frias J.
Universidad de Salamanca
Publisher(s)
Elsevier Ltd
Abstract
Ready-to-eat sprouts are becoming popular healthy fresh foods. Germination and elicitation may be used to improve phytochemical and functional quality of sprouts. The aim of this study was to unveil the efficacy of germination and the use of elicitors (500. μM ascorbic, 50. μM folic and 5. mM glutamic acid) to enhance the phenolic composition and antioxidant and angiotensin I converting enzyme (ACE) inhibitory activities of 8. day-old Phaseolus vulgaris L. var. Pinto sprouts. Sprouting produced a general decrease in flavan-3-ols and anthocyanins of sprouts that was compensated with a higher content of flavanones and flavonols. Although elicitor treatments reduced total phenolic content of sprouts, they promoted the synthesis of specific flavanones and flavonol O-glycosides, effect that was dependent on the type of elicitor. Antioxidant activity was not affected by ascorbic and folic acid treatments whereas it was slightly reduced in glutamic acid-treated sprouts. Folic acid was the only treatment that caused an outstanding increase in the ACE inhibitory activity of sprouts. In conclusion, elicitation may produce positive changes in the phenolic profile and improve health-promoting potential of sprouts, although selection of elicitor is crucial to deliver marketplace ready to eat sprouts enriched in specific bioactive phytochemicals.
Start page
55
End page
63
Volume
70
Language
English
OCDE Knowledge area
Bioquímica, Biología molecular Ciencias médicas, Ciencias de la salud
Scopus EID
2-s2.0-84922971982
Source
Food Research International
ISSN of the container
09639969
Sponsor(s)
This work was cofunded by the Spanish Ministerio de Economia y Competitividad through the project number AGL2010-16310 and the European Union through FEDER programme. R.I.L. thanks CSIC and European Societal Funds for providing a PhD fellowship. M.D. and E.P. thanks the Spanish “Ramón y Cajal” Program for financial support.
Sources of information: Directorio de Producción Científica Scopus