Výsledky vyhledávání - "Josep M. Guadayol"

Determination of dimethyl selenide and dimethyl sulphide compounds causing off-flavours in bottled mineral waters

Autor: Josep Caixach, M. Cortina, Marta Guadayol, Josep M. Guadayol

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
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Sales of bottled drinking water have shown a large growth during the last two decades due to the general belief that this kind of water is healthier, its flavour is better and its consumption risk is lower than that of tap water. Due to the previous

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0398ac5cf2394bee4780645e12a5c67
https://hdl.handle.net/2117/101379

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Characterisation of volatile composition of white salsify (Tragopogon porrifolius L.) by headspace solid-phase microextraction (HS-SPME) and simultaneous distillation–extraction (SDE) coupled to GC–MS

Autor: Montserrat Riu-Aumatell, Susana Buxaderas, Josep M. Guadayol, Liliana Vargas, Stefania Vichi, Elvira López-Tamames

Publikováno v: Food Chemistry. 129:557-564

Two analytical procedures were applied, HS-SPME and SDE, coupled to GC–MS to analyse the volatile composition of white salsify. More than 80 of volatile compounds which belonged to distinct chemical families were analysed. SDE led to the identifica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::193b937b0b78ae1ad84eba0587ad4059
https://doi.org/10.1016/j.foodchem.2011.04.061

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Comparative study of different extraction techniques for the analysis of virgin olive oil aroma

Autor: Josep Caixach, Elvira López-Tamames, Josep M. Guadayol, Susana Buxaderas, Stefania Vichi

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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8 pages, 3 figures.
Headspace solid-phase microextraction (HS-SPME), simultaneous distillation/extraction (SDE) and closed-loop stripping analysis (CLSA) coupled to gas chromatography/mass spectrometry (GC/MS) were used to study virgin olive oil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ec02880ba15a600b9187359d643b94d
https://doi.org/10.1016/j.foodchem.2007.02.018

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HS-SPME coupled to GC/MS for quality control of Juniperus communis L. berries used for gin aromatization

Autor: Montserrat Riu-Aumatell, Mercé Mora-Pons, Elvira López-Tamames, Josep M. Guadayol, Stefania Vichi, Susana Buxaderas

Publikováno v: Food Chemistry. 105:1748-1754

HS-SPME coupled to GC/MS was applied to the analysis of the volatile fraction of Juniperus communis L. berries, which are the principal ingredient used for gin aromatization. Seventy seven compounds were identified by comparison with reference compou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::20dbefda13312401b6dbdbaa87eff6f3
https://doi.org/10.1016/j.foodchem.2007.03.026

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Monoterpene and sesquiterpene hydrocarbons of virgin olive oil by headspace solid-phase microextraction coupled to gas chromatography/mass spectrometry

Autor: Josep Caixach, Stefania Vichi, Elvira López-Tamames, Josep M. Guadayol, Susana Buxaderas

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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7 pages, 3 figures.-- PMID: 16756984 [PubMed].-- Printed version published Aug 25, 2006.-- Presented at the 11th Meeting on Instrumental Analysis (Barcelona, Nov 15–17, 2005). In the present article, a headspace solid-phase microextraction method c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21cdf9392f0e2b40b660db44d3be4d29
https://doi.org/10.1016/j.chroma.2006.05.029

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Volatile profiles of sparkling wines obtained by three extraction methods and gas chromatography–mass spectrometry (GC–MS) analysis

Autor: Montserrat Riu-Aumatell, Josep M. Guadayol, Elvira López-Tamames, J. Bosch-Fusté, Susana Buxaderas, Josep Caixach

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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8 pages, 1 figure.
Simultaneous distillation extraction (SDE) and closed-loop stripping analysis (CLSA) show great capacity for organic compound extraction. Here we used these techniques to obtain and characterize a wide range of volatile compou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2a2b13dbe57a27618428be213308860
http://hdl.handle.net/10261/10036

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Estimating DOC regime in a wastewater treatment plant by UV deconvolution

Autor: A. Escalas, M. Droguet, Josep M. Guadayol, Josep Caixach

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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9 pages, 7 figures, 4 tables.-- PMID: 12753840 [PubMed].-- Printed version published Jun 2003.
A UV-deconvolution method was modified, and applied to estimation of dissolved organic carbon (DOC) along a municipal wastewater treatment plant (WWTP

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df2787fbfbccea63e7686d855e5d6acf
http://hdl.handle.net/10261/21682

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Time and space patterns of volatile organic compounds in a sewage treatment plant

Autor: A. Escalas, Josep Caixach, Josep M. Guadayol, M. Cortina, Josep Rivera

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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8 pages, 1 figure, 5 tables.-- PMID: 12909110 [PubMed].-- Printed version published Sep 2003.
47 regulated and non-regulated volatile organic compounds (VOCs) were characterised by closed-loop stripping analysis (CLSA) and high resolution gas ch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31132e6b4aba9ecf6a89955f6399abbd
http://hdl.handle.net/10261/21655

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Degradation of polyethoxylated nonylphenols in a sewage treatment plant. Quantitative analysis by isotopic dilution-HRGC/MS

Autor: M. Droguet, Josep Rivera, Carles Planas, Josep Caixach, Josep M. Guadayol, A. Escalas

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname

Polyethoxylated alkylphenols (APnEO, where n is the number of ethylene oxide molecules), are non-ionic surfactants widely used for domestic and industrial purposes.Most of APnEO are polyethoxylated nonylphenols (NPnEO). NPnEO are widespread environme

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Aplicación de las técnicas de espacio de cabeza a la extracción de los compuestos orgánicos volátiles de la oleorresina de pimentón

Autor: Josep M. Guadayol, T. Baquero, Josep Caixach

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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Grasas y Aceites, Vol 48, Iss 1, Pp 1-5 (1997)

5 páginas, 3 figuras, 1 tabla.-- Investigación.
[ES] Se han aplicado las técnicas de espacio de cabeza estático y dinámico para la extracción y concentración de los compuestos orgánicos volátiles de la oleorresina de pimentón. En espac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da9b1656dd6bbb42b8abfe48ec0ba584
http://hdl.handle.net/10261/21853

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