PERSONAL DE APOYO
DI PAOLA NARANJO Romina Daniela
artículos
Título:
Hydrophilic antioxidant from Andean tomato landraces assessed by their bioactivities in vitro and in vivo
Autor/es:
DI PAOLA NARANJO R.D.; OTAIZA S.N.; SARAGUSTI A.; BARONI M. V.; CARRANZA A.; PERALTA, I.; VALLE, E.M.; CARRARI F.; ASIS RAMÓN
Revista:
FOOD CHEMISTRY
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2016 vol. 206 p. 146 - 155
ISSN:
0308-8146
Resumen:
Potential nutraceutical properties of hydrophilic antioxidants in fruits of tomato landraces collected in Andean valleys were characterised. Antioxidant metabolites were measured by HPLC?DAD?MS/MS in mature fruits and their biological activities were assessed by in vitro and in vivo methods. In vitro antioxidant capacities were established by TEAC and FRAP methods. For in vivo biological activities we used a procedure based on Caenorhabditis elegans subjected to thermal stress. In addition, Saccharomyces cerevisiae was also used as a rapid screening system to evaluate tomato antioxidant capacity. All tomatoaccessions displayed significant differences regarding metabolic composition, biological activity and antioxidant capacity. Metabolite composition was associated with geographical origin and fruit size. Antioxidant activities showed significant association with phenolic compounds, such as caffeoylquinicacids, ferulic acid-O-hexosides and rutin. Combination of in vitro and in vivo methods applied here allowed evaluation of the variability in nutraceutical properties of tomato landraces, which could be applied to other fruits or food products.