Jiménez Moreno, Nerea
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Jiménez Moreno
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Nerea
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InaMat2. Instituto de Investigación en Materiales Avanzados y Matemáticas
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Publication Open Access Phenolic composition of artichoke waste and its antioxidant capacity on differentiated Caco-2 cells(MDPI, 2019) Jiménez Moreno, Nerea; Cimminelli, María José; Volpe Sainz, Francesca; Ansó Blanco, Raúl; Esparza Catalán, Irene; Mármol, Inés; Rodríguez Yoldi, María Jesús; Ancín Azpilicueta, Carmen; Zientziak; Institute for Advanced Materials and Mathematics - INAMAT2; CienciasArtichoke waste represents a huge amount of discarded material. This study presents the by‐products (bracts, exterior leaves, and stalks) of the 'Blanca de Tudela' artichoke variety as a potential source of phenolic compounds with promising antioxidant properties. Artichoke residues were subjected to different extraction processes, and the antioxidant capacity and phenolic composition of the extracts were analyzed by spectrophotometric methods and high performance liquid chromatography (HPLC) analyses, respectively. The most abundant polyphenols in artichoke waste were chlorogenic acid, luteolin‐7‐O‐rutinoside, and luteolin‐7‐O‐glucoside. Minor quantities of cynarin, luteolin, apigenin‐7‐O‐glucoside, apigenin‐7‐O‐rutinoside, and naringenin‐7‐O-glucoside were also found. The antioxidant activity of the obtained extracts determined by ABTS [2, 2’‐azinobis (3‐ethylbenzothiazoline‐6‐sulphonic acid)], DPPH (2,2‐diphenyl‐1‐pycrilhydracyl), and FRAP (Ferric Ion Reducing Antioxidant Power) was highly correlated with the total concentration of phenolic compounds. Chlorogenic acid, luteolin‐7‐O‐glucoside, and luteolin‐7‐O‐rutinoside, the most abundant compounds in 60% methanol extracts, are the components most responsible for the antioxidant activity of the artichoke waste extracts. The extract with the best antioxidant capacity was selected to assay its antioxidant potential on a model intestinal barrier. This action of the hydroxycinnamic acids on intestinal cells (Caco-2) was confirmed. In summary, artichoke waste may be considered a very interesting ingredient for food functionalization and for therapeutic purposes.Publication Open Access Therapeutic applications of rose hips from different rosa species(MDPI, 2017) Mármol, Inés; Sánchez de Diego, Cristina; Jiménez Moreno, Nerea; Ancín Azpilicueta, Carmen; Rodríguez Yoldi, María Jesús; Química Aplicada; Kimika AplikatuaRosa species, rose hips, are widespread wild plants that have been traditionally used as medicinal compounds for the treatment of a wide variety of diseases. The therapeutic potential of these plants is based on its antioxidant effects caused by or associated with its phytochemical composition, which includes ascorbic acid, phenolic compounds and healthy fatty acids among others. Over the last few years, medicinal interest in rose hips has increased as a consequence of recent research that has studied its potential application as a treatment for several diseases including skin disorders, hepatotoxicity, renal disturbances, diarrhoea, inflammatory disorders, arthritis, diabetes, hyperlipidaemia, obesity and cancer. In this review, the role of different species of Rosa in the prevention of treatment of various disorders related to oxidative stress, is examined, focusing on new therapeutic approaches from a molecular point of view.