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Formación pedagógica del profesor universitario: programas de acción del ICE de la UPC
(2001-05)
Article.
Accés obert
Article.
Accés obert
En este artículo se describe el concepto de programa de acción como un complemento a
los talleres para la formación pedagógica del profesor universitario. Se trata de que los
profesores introduzcan cambios en su propia ...
Use of water-based carbonyl-functional polymers on a cross-linker-free highperformance leather finish
(2011-02)
Article.
Accés obert
Article.
Accés obert
The present paper aims to study a new high-performance coating formulation while avoiding the use of cross-linkers.
By using acrylic polymers with carbonyl functional groups, the negative environmental effects of the ...
Comparación de cuatro sistemas de precurtición wet-white
(2006-04)
Article.
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Article.
Accés obert
La curtición al cromo es un proceso con un fuerte impacto ambiental, por una parte debido a que contamina de forma importante las aguas residuales y por otra a la dificultad de eliminar los residuos sólidos que contienen ...
Screening of antioxidant activity of Gentian Lutea root and its application in Oil-in-Water Emulsions
(2014)
Article.
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Article.
Accés obert
Gentiana Lutea root (G. Lutea) is a medicinal herb, traditionally used as a bitter tonic in gastrointestinal ailments for improving the digestive system. The active principles of G. Lutea were found to be secoiridoid bitter ...
Isocyanate toughened pCBT: reactive blending and tensile properties
(2013-02-01)
Article.
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Article.
Accés obert
Cyclic butylene terephthalate oligomers (CBT) were reacted in a ring-opening polymerization with three types of
isocyanates: a bifunctional aromatic type, a bifunctional aliphatic type and a polymeric aromatic isocyanate. ...
Avocado seeds: extraction optimization and possible use as antioxidant in food
(2014-06)
Article.
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Article.
Accés obert
Consumption of avocado (Persea americana Mill) has increased worldwide in recent years. Part of this food (skin and seed) is lost during processing. However, a high proportion of bioactive substances, such as polyphenols, ...
Determination of fungicides in residual tanning floats using solid phase micro extraction
(2013-02-04)
Article.
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Article.
Accés obert
Solid-phase microextraction (SPME) was optimized for extraction of the leather preservative agents 2-(thiocyanomethylthio)-benzothiazole (TCMTB), 4-chloro-3-methylphenol (PCMC), 2-phenylphenol (OPP), 2-Octyl-3(2H)-isothiazolone ...
Antioxidant Properties of Artemisia annua Extracts in Model Food Emulsions
(2014-03-28)
Article.
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Article.
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Artemisia annua is currently the only commercial source of the sesquiterpene lactone artemisinin. Although artemisinin is a major bioactive component present in
this Chinese herb, leaf flavonoids have shown a variety of ...
Characterization of phytochemicals in petals of different colours from viola × wittrockiana gams and their correlation with antioxidant activity
(2014-08-15)
Article.
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Article.
Accés obert
A study to establish relationship between the petal colour, extraction solvent, phenolic, flavonoid, anthocyanin content and antioxidant activity in three varieties of Viola × wittrockiana (yellow, red and violet) is ...
Modelling extraction of white tea polyphenols: the influence of temperature and ethanol concentration
(2014)
Article.
Accés obert
Article.
Accés obert
The optimization of the extraction of natural antioxidants from white tea has fostered intensive research. This study has investigated the effects of ethanol-water mixtures, temperature and time on the extraction of ...