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Role of elicitation on the health-promoting properties of kidney bean sprouts

AutorLimón, Rocío ; Peñas, Elena ; Martínez Villaluenga, Cristina ; Frías, Juana
Palabras claveSoluble phenolic compounds
aminobutiric acid
Antioxidant capacity
Kidney beans
Germination
ACE inhibition
Fecha de publicaciónmay-2014
EditorElsevier
CitaciónFood Science and Technology 56(2): 328-334 (2014)
ResumenThe influence of germination of kidney beans for 4, 6 and 8 days in different elicitors (ascorbic acid, folic acid, glutamic acid, glutamic acid/chitosan and lactic acid/chitosan) on the production of health-promoting ingredients was studied. Sprouts were characterized according to their protein profile, soluble phenolic compounds (SPC) and γ-aminobutyric acid (GABA) content. Additionally, the antioxidant and angiotensin-converting enzyme (ACE) inhibition activities of aqueous extracts from kidney bean elicited sprouts were determined. Elicitation by glutamic acid for 8 days led to the highest SPC and GABA accumulation in kidney bean sprouts and their extracts were selected based on their highest phytochemical content. These extracts also showed remarkable antioxidant and ACE-inhibitory activities. The IC50 for ACE inhibition of glutamic acid-extracts increases 89-fold after the in-vitro gastrointestinal digestion. These results will contribute not only to improving the health-promoting potential of kidney bean sprouts but also to obtaining ingredients which might reduce oxidative stress and hypertension. © 2014 Elsevier Ltd.
Versión del editorhttp://dx.doi.org/10.1016/j.lwt.2013.12.014
URIhttp://hdl.handle.net/10261/92943
DOI10.1016/j.lwt.2013.12.014
Identificadoresissn: 0023-6438
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