Articles de revista
Enviaments recents
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Determination of hexavalent chromium in leather by ion-exchange chromatography
(2014-09-01)
Article
Accés restringit per política de l'editorialThe determination of traces of hexavalent chromium in leather and in leather consumer goods is carried out by ion-exchange chromatography. Samples are extracted at pH7.5-8 with a phosphate buffer, according to the method ... -
Modelling extraction of white tea polyphenols: the influence of temperature and ethanol concentration
(2014)
Article
Accés obertThe 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 ... -
Isocyanate toughening of pCBT/organoclay nanocomposites with exfoliated structure and enhanced mechanical properties
(2014-12-01)
Article
Accés restringit per política de l'editorialCyclic butylene terephthalate (CBT (R)) is an interesting matrix material for the preparation of nanocomposites due to its very low, water-like melt viscosity which favours clay exfoliation. Nevertheless, polymerized CBT ... -
Use of lyophilised and powdered Gentiana lutea root in fresh beef patties stored under different atmospheres
(2014-08-19)
Article
Accés restringit per política de l'editorialGentiana lutea root is a medicinal herb that contains many active compounds which contribute to physiological effects, and it has recently attracted much attention as a natural source of antioxidants. The aim of this ... -
Characterization of phytochemicals in petals of different colours from viola × wittrockiana gams and their correlation with antioxidant activity
(2014-08-15)
Article
Accés obertA 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 ... -
Avocado seeds: extraction optimization and possible use as antioxidant in food
(2014-06)
Article
Accés obertConsumption 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, ... -
Extraction of antioxidants from borage (Borago officinalis L.) leaves—Optimization by response surface method and application in oil-in-water emulsions
(2014-05)
Article
Accés obertBorage (Borago officinalis L.) is a typical Spanish plant. During processing, 60% are leaves. The aim of this work is to model and optimize the extraction of polyphenol from borage leaves using the response surface method ... -
A dehydration process for ovine hide to obtain a new collagenous material
(2014-04-09)
Article
Accés restringit per política de l'editorialThe aim of the present work is to develop a dehydration process for ovine hide to obtain a new collagenous material for use in the leather industry. What is obtained through this new process is a dry and very porous ... -
Radical Scavenging of White Tea and Its Flavonoid Constituents by 2 Electron Paramagnetic Resonance (EPR) Spectroscopy
(2014-06)
Article
Accés restringit per política de l'editorialWhite tea (WT) presents high levels of catechins, which are known to reduce oxidative stress. WT is the least processed tea, unfermented and prepared only from very young tea leaves. The subject of this paper is the use ... -
Screening of antioxidant activity of Gentian Lutea root and its application in Oil-in-Water Emulsions
(2014)
Article
Accés obertGentiana 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 ... -
New challenges in chrome-free leathers: development of wet-bright process
(2014-04-01)
Article
Accés restringit per política de l'editorialThe aim of the present work was to develop a new tanning process (wet-bright) that produces perfectly white leather meeting all of the requirements for many kinds of articles, such as automotive, garment and shoe upper. ... -
Sheets of branched poly(lactic acid) obtained by one-step reactive extrusion-calendering process: physical aging and fracture behavior
(2014-06-01)
Article
Accés restringit per política de l'editorialThe architectural modifications of a linear poly(D,L-Lactide) acid (PD,L-LA) commercial grade were induced by a one-step reactive extrusion-calendering process using a styrene-glycidyl acrylate copolymer as reactive agent. ...