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Estudio de las variables implicadas en la extracción de alquilfenoles en algas mediante agua sobrecalentada (PHWE)

Estudo das variables implicadas na extracción de alquilfenoles en algas mediante auga sobrequentada (PHWE)
Authors: Ferreiro, Borja;

Estudio de las variables implicadas en la extracción de alquilfenoles en algas mediante agua sobrecalentada (PHWE)

Abstract

[Resumen] El objetivo del presente trabajo es el estudio de la extracción de algunos de los alquilfenoles más comercializados (4-octilfenol, 4-terc-octilfenol y nonilfenol) y bisfenol A mediante agua a presión sobrecalentada (PHWE) en algas marinas comestibles comerciales y su posterior análisis mediante cromatografía de líquidos de alta resolución acoplado a espectrometría de masas (HPLC-MS/MS). Se ha utilizado un diseño de experiencias Plackett-Burman para averiguar las variables que afectan de forma más significativa a la extracción. Se estudiaran como posibles variables la temperatura, presión, tiempo y ciclos de extracción, ratio dispersante(C18)-muestra, concentración de modificador (MeOH) y tiempo de purga. La importancia de cada variable se verá representada mediante cartas Pareto de primer orden. Según los resultados obtenidos, excepto la presión, todas las demás variables han resultado significativas.

[Resumo] O obxetivo do presente traballo é a estudo da extracción dalguns dos alquilfenois mais comercializados (4-octilfenol, 4-terc-octilfenol e nonilfenol) e bisfenol A mediante auga a presión sobrequentada (PHWE) en algas mariñas comestibles comerciales e o seu posterior análise das mediante unha cromatografía de líquidos de alta resolución acoplada a espectroscopía de masas (HPLC-MS/MS). Utilizouse un deseño de experiencias Plackett-Burman para averiguar as variables que afectan de forma máis significativa á extracción. Estudiaranse como posibles variables a temperatura, presión, tempo e ciclos de extracción, ratio dispersante(C18)-mostra, concentración de modificador (MeOH) e tempo de purga. A importancia de cada variable verase representada mediante cartas Pareto de primer orde.. Según os resultados obtidos, excepto a presion, todalas demais variables resultaron significativas.

[Abstract] The aim of this study is to analyze the extraction of some of the most commercialized alkyphenolic compounds (4-octylphenol, 4-terc-octylphenol and nonylphenol) and bisphenol A by pressurized hot water extraction (PHWE) on commercial edible seaweed and the analysis was performed using a high performance liquid chromatography (HPLC) coupled to mass spectrometry. A Placket-Burman experimental design was used to find the significant variables involved in the extraction. The potentially significant variables are temperature, pressure, time, extraction time and cycles, dispersant(C18)-sample ratio, modifier concentration (MeOH) and purge time. The importance of each variable will studied by first order Pareto charts. The results show that, except pressure, every variable is significative.

Traballo fin de grao (UDC.CIE). Química. Curso 2014/2015

Country
Spain
Related Organizations
Keywords

Fenoles, Algas, Extracción (Química)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green