2024-03-28T22:49:23Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1182652016-11-11T11:59:12Zcom_10261_68com_10261_2col_10261_321
Carotenoid profiling of Hordeum chilense grains: The parental proof for the origin of the high carotenoid content and esterification pattern of tritordeum
Mellado-Ortega, Elena
Hornero-Méndez, Dámaso
Ministerio de Ciencia e Innovación (España)
Junta de Andalucía
Hordeum chilense
Tritordeum
Carotenoids
Lutein esters
28 páginas; 2 tablas; 5 figuras
The outstanding high carotenoid content of the tritordeum (×Tritordeum Ascherson et Graebner) grains, a promising novel cereal derived from the crossing of durum wheat and the wild barley Hordeum chilense, has previously been assigned as a character derived from the genetic background of its wild parent. The carotenoid profile of H. chilense, especially the lutein esters presented in this study, provide biochemical evidences to confirm this affirmation, being the first time that the individual carotenoid profile of this cereal has been characterized. The total carotenoid content (6.14 ± 0.12 μg/g) and the individual carotenoid composition were very similar to the tritordeum grains, with lutein being the major carotenoid (88%; 5.38 ± 0.11 μg/g) and very low levels of β-carotene. In contrast to tritordeum, H. chilense presented a considerable amount of zeaxanthin (12%; 0.74 ± 0.01 μg/g). Up to 55% of lutein was esterified with palmitic (C16:0) and linoleic (C18:2) acids, presenting a characteristic acylation pattern, in agreement with the tritordeum one, and composed by four monoesters (lutein 3′-O-linoleate, lutein 3-O-linoleate, lutein 3′-O-palmitate and lutein 3-O-palmitate) and four diesters (lutein dilinoleate, lutein 3′-O-linoleate-3-O-palmitate, lutein 3′-O-palmitate-3-O-linoleate, lutein dipalmitate). These data may be useful in the field of carotenoid biofortification of cereals.
2015-07-27T11:25:40Z
2015-07-27T11:25:40Z
2015-03
artículo
Journal of Cereal Science 62: 15-21 (2015)
0733-5210
http://hdl.handle.net/10261/118265
10.1016/j.jcs.2014.12.005
http://dx.doi.org/10.13039/501100004837
http://dx.doi.org/10.13039/501100011011
eng
Postprint
http://dx.doi.org/10.1016/j.jcs.2014.12.005
Sí
http://creativecommons.org/licenses/by-nc-nd/4.0/
openAccess
Elsevier