Institution
University of Madeira
Education•Funchal, Portugal•
About: University of Madeira is a education organization based out in Funchal, Portugal. It is known for research contribution in the topics: Population & Dendrimer. The organization has 1014 authors who have published 2759 publications receiving 59457 citations.
Papers published on a yearly basis
Papers
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TL;DR: In this article, the effect of storage temperature, storage time and glucose content on furanic derivatives (FDs) formation in fortified Madeira wines using headspace solid phase microextraction (HS-SPME) combined with gas chromatography-quadrupole mass spectrometry (GC-qMS), and micro extraction by packed sorbent (MEPS) tandem with ultrahigh pressure liquid chromatography coupled to photodiode array detection (UPLC-PDA).
Abstract: This paper reports the effect of storage temperature, storage time and glucose content on furanic derivatives (FDs) formation in fortified Madeira wines using headspace solid phase microextraction (HS–SPME) combined with gas chromatography-quadrupole mass spectrometry (GC–qMS), and microextraction by packed sorbent (MEPS) tandem with ultrahigh pressure liquid chromatography coupled to photodiode array detection (UPLC–PDA). Based on the results obtained, MEPS/UPLC–PDA showed better FDs extraction compared to HS–SPME/GC–qMS, in terms of analysis reduction, sensitivity, reproducibility and allow detect all target furanic derivatives considered in this study. 5-Hydroxymethyl-2-furfural, one of the most abundant FDs in wines, is not detected by HS–SPME/GC–qMS, which suggest that this methodology is not the most suitable to achieve the purpose of this study. Regarding the impact of storage time and temperature on FDs formation using MEPS/UPLC–PDA, it was verified an increase on FDs concentration during storage time independently of storage temperature as well as glucose content, and this increase is also favored by temperature increases, being more significant at 55 °C. The results obtained in this study could be used as a useful tool in winemaking field in order to introduce changes in fermentation as well as baking (estufagem) process, and/or predict the effects of storage time by application of high temperatures.
18 citations
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TL;DR: In this paper, the interaction of a dark soliton governed by the nonlinear Schrodinger equation with a localized impurity is studied by means of a modified adiabatic approximation and direct numerical simulations.
17 citations
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TL;DR: In this paper, a fast and reliable methodology using a digitally controlled microextraction by packed sorbent (MEPS), followed by ultrahigh pressure liquid chromatography (UHPLC) separation combined with a photodiode array (PDA) detection, has been developed and validated for the simultaneous determination of clozapine and risperidone, and their active metabolites, in urine samples.
17 citations
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TL;DR: The proposed methodology revealed a promising approach to evaluate the nutritional quality of this kind of products, and μ-SPEed sample treatment in combination with UHPLC-PDA has demonstrated to be more sensitive, selective and efficient than MEPS.
17 citations
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TL;DR: The sensorial properties of Madeira wines produced byMalvasia Cândida and Malvasia Roxa could be improved by hydrolysis procedure, since their hydrolyzed fraction is mainly characterized by terpenoids which are responsible for floral notes.
17 citations
Authors
Showing all 1027 results
Name | H-index | Papers | Citations |
---|---|---|---|
Dirk Helbing | 101 | 642 | 56810 |
Xiangyang Shi | 79 | 470 | 22028 |
Jodi Forlizzi | 67 | 237 | 17292 |
Armando J. D. Silvestre | 64 | 381 | 14739 |
John W. Clark | 60 | 707 | 13999 |
José Luís da Silva | 59 | 235 | 11972 |
Carmen S. R. Freire | 58 | 239 | 10307 |
Jose Luis Santos | 54 | 402 | 9004 |
Vladimir V. Konotop | 53 | 426 | 11073 |
A. R. Bishop | 51 | 551 | 11946 |
Manfred Kaufmann | 46 | 266 | 20172 |
José D. Santos | 45 | 220 | 5875 |
Vassilis Kostakos | 45 | 270 | 7015 |
Pedro L. Granja | 44 | 132 | 5969 |
Stéphane Cordier | 43 | 371 | 6802 |