G. Alonso

Publications141
h-index38
Citations3,458
Highly Influential Citations122
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Identification of the flavonoid fraction in saffron spice by LC/DAD/MS/MS: Comparative study of samples from different geographical origins
Abstract The flavonoid fraction in saffron spice has been analysed, for the first time, by LC-DAD-MS/MS ESI and five kaempferol derivatives have been found. Compounds such as… Expand
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Crocetin esters, picrocrocin and its related compounds present in Crocus sativus stigmas and Gardenia jasminoides fruits. Tentative identification of seven new compounds by LC-ESI-MS.
Crocetin esters present in saffron (Crocus sativus L.) stigmas and in Gardenia jasminoides Ellis fruit are the compounds responsible for their color. Of the fifteen crocetin esters identified in this… Expand
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COMPOSITION OF CROCINS AND PICROCROCIN FROM SPANISH SAFFRON (CROCUS SATIVUS L.)
A method for simultaneous identification and quantification of crocins and picrocrocin by HPLC-DAD in aqueous extracts of saffron spice was used. The coefficients of variation obtained were lower… Expand
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Characterization of grape seed oil from different grape varieties (Vitis vinifera)
In this work, oil obtained from seeds of different red grape varieties, grown in the Autonomous Regions of Castilla-La Mancha and Murcia (Spain), was characterized by determining physicochemical and… Expand
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Influence of prefermentative maceration temperature on the colour and the phenolic and volatile composition of rosé wines
Prefermentative maceration for 8 h at 5, 10 and 15 °C was used to make rose wines, and changes in their colour (colour intensity (CI), tone and CIELAB parameters), phenolic compounds (classic indices… Expand
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Antitumor Effects of Saffron-Derived Carotenoids in Prostate Cancer Cell Models
Crocus sativus L. extracts (saffron) are rich in carotenoids. Preclinical studies have shown that dietary intake of carotenoids has antitumor effects suggesting their potential preventive and/or… Expand
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Stir bar sorptive extraction applied to volatile constituents evolution during Vitis vinifera ripening.
The stir bar sorptive extraction (SBSE) technique is used to determine volatile constituents in Monastrell grapes. The method proposed involves a maceration step lasting 2 h and a sorption time of 6… Expand
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Stir bar sorptive extraction for the determination of volatile compounds in oak-aged wines.
Stir bar sorptive extraction (SBSE) followed by a thermal desorption-gas chromatography-mass spectrometry analysis has been optimized for the determination of 13 of the most important oak volatiles… Expand
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Comparison of stir bar sorptive extraction and solid-phase microextraction to determine halophenols and haloanisoles by gas chromatography-ion trap tandem mass spectrometry.
Solid-phase microextraction by immersion (IS-SPME) and headspace mode (HS-SPME), together with stir bar sorptive extraction (SBSE), have been assayed in combination with gas chromatography-ion trap… Expand
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Influence of different drying and aging conditions on saffron constituents.
A dehydration postharvesting treatment is necessary to convert Crocus sativus L. stigmas into saffron spice. Three different dehydration treatments were evaluated: dehydration at room temperature;… Expand
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