<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sánchez del Pulgar, J</style></author><author><style face="normal" font="default" size="100%">Soukoulis, C</style></author><author><style face="normal" font="default" size="100%">Carrapiso, A I</style></author><author><style face="normal" font="default" size="100%">Cappellin, L</style></author><author><style face="normal" font="default" size="100%">Granitto, P</style></author><author><style face="normal" font="default" size="100%">Aprea, E</style></author><author><style face="normal" font="default" size="100%">Romano, A</style></author><author><style face="normal" font="default" size="100%">Gasperi, F</style></author><author><style face="normal" font="default" size="100%">Biasioli, F</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of the pig rearing system on the final volatile profile of Iberian dry-cured ham as detected by PTR-ToF-MS</style></title><secondary-title><style face="normal" font="default" size="100%">Meat Science</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">aldehydes</style></keyword><keyword><style  face="normal" font="default" size="100%">Aldehydes: analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Animal Feed</style></keyword><keyword><style  face="normal" font="default" size="100%">Animal Husbandry</style></keyword><keyword><style  face="normal" font="default" size="100%">Animal Husbandry: methods</style></keyword><keyword><style  face="normal" font="default" size="100%">Animals</style></keyword><keyword><style  face="normal" font="default" size="100%">diet</style></keyword><keyword><style  face="normal" font="default" size="100%">Dietary Fats</style></keyword><keyword><style  face="normal" font="default" size="100%">Dietary Fats: analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Dietary Fats: pharmacology</style></keyword><keyword><style  face="normal" font="default" size="100%">Dry cured ham</style></keyword><keyword><style  face="normal" font="default" size="100%">Ions</style></keyword><keyword><style  face="normal" font="default" size="100%">Ketones</style></keyword><keyword><style  face="normal" font="default" size="100%">Ketones: analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Mass spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">Mass Spectrometry: methods</style></keyword><keyword><style  face="normal" font="default" size="100%">meat</style></keyword><keyword><style  face="normal" font="default" size="100%">Meat: analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Nuts</style></keyword><keyword><style  face="normal" font="default" size="100%">Oleic Acid</style></keyword><keyword><style  face="normal" font="default" size="100%">Oleic Acid: pharmacology</style></keyword><keyword><style  face="normal" font="default" size="100%">Poaceae</style></keyword><keyword><style  face="normal" font="default" size="100%">Proton transfer reaction mass spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus</style></keyword><keyword><style  face="normal" font="default" size="100%">Rearing system</style></keyword><keyword><style  face="normal" font="default" size="100%">subcutaneous fat</style></keyword><keyword><style  face="normal" font="default" size="100%">Subcutaneous Fat: metabolism</style></keyword><keyword><style  face="normal" font="default" size="100%">Sulfur Compounds</style></keyword><keyword><style  face="normal" font="default" size="100%">Sulfur Compounds: analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Swine</style></keyword><keyword><style  face="normal" font="default" size="100%">Switchable reagent ions</style></keyword><keyword><style  face="normal" font="default" size="100%">Time of flight</style></keyword><keyword><style  face="normal" font="default" size="100%">Volatile Organic Compounds</style></keyword><keyword><style  face="normal" font="default" size="100%">Volatile Organic Compounds: analysis</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2013</style></year></dates><publisher><style face="normal" font="default" size="100%">Elsevier Ltd</style></publisher><volume><style face="normal" font="default" size="100%">93</style></volume><pages><style face="normal" font="default" size="100%">420-428</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The volatile compound proﬁle of dry-cured Iberian ham lean and subcutaneous fat from pigs fattened outdoors on acorn and pasture (Montanera) or on high-oleic concentrated feed (Campo) was investigated by proton transfer reaction time-of-ﬂight mass spectrometry. In addition to the usual proton transfer ionization the novel switchable reagent ions system was implemented which allows the use of different precursor ions (H3O+ , NO+ and O2 + ). The analysis of the lean and subcutaneous fat volatile compounds allowed a good sample discrimination according to the diet. Differences were evident for several classes of compounds: in particular, Montanera hams showed higher concentrations of aldehydes and ketones and lower concentrations of sulfur-containing compounds compared to Campo hams. The use of NO+ as precursor ion conﬁrmed the results obtained with H3O+ in terms of classiﬁcation capability and provides additional analytical insights.</style></abstract><accession-num><style face="normal" font="default" size="100%">23273445</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Avila, Anna</style></author><author><style face="normal" font="default" size="100%">Bonilla, David</style></author><author><style face="normal" font="default" size="100%">Rodà, F</style></author><author><style face="normal" font="default" size="100%">Piñol, J</style></author><author><style face="normal" font="default" size="100%">Neal, C</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Soilwater chemistry in a holm oak ( Quercus ilex) forest: inferences on biogeochemical processes for a montane-Mediterranean area</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Hydrology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">biogeochemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">chemical composition</style></keyword><keyword><style  face="normal" font="default" size="100%">forest soils (citation)</style></keyword><keyword><style  face="normal" font="default" size="100%">Ions</style></keyword><keyword><style  face="normal" font="default" size="100%">Soil depth</style></keyword><keyword><style  face="normal" font="default" size="100%">soil pH</style></keyword><keyword><style  face="normal" font="default" size="100%">soil water</style></keyword><keyword><style  face="normal" font="default" size="100%">temporal variation</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1995</style></year></dates><volume><style face="normal" font="default" size="100%">166</style></volume><pages><style face="normal" font="default" size="100%">15-35</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Soil solution and free-flowing soilwater were sampled at various depths for 3 years in a plot of holm oak (Quercus ilex L.) in the Montseny mountains (NE Spain). The soil solution retained at -65M kPa in the mineral soil at depths of 20 and 40 cm had a different chemistry from that of throughflow under the humic layer (H-layer throughflow) and, to a lesser extent, from deep subsurface flow. The dominant mobile anion in the soil solution and the deep flow was SO:-, whereas in the H-layer, SOi- was overridden by alkalinity. H-Layer throughflow chemistry was extremely variable, in consequence of the large number of biogeochemical processes affecting it (e.g. rainfall chemistry, dry deposition, leaching from canopy and litter, decomposition), and of the quantity of water available for transport of solutes. The chemistry of the soil solution was more predictable, as it was governed mainly by nutrient uptake, cation exchange reactions and the seasonal wetting and drying cycles. The chemistry of the deep subsurface flow was often intermediate between that of the soil solution and that of the H-layer throughflow; this suggested a mixture of displaced pre-event soil solution and of H-layer throughflow circulating through preferential flow paths. With humid antecedent conditions, the chemistry of the deep subsurface flow approached that of the soil solution. The cation concentration relationships in the soil solution were strongly linear. In a homogeneous soil, cation exchange theory predicts this to be expected only for cations of the same charge, whereas cations of different charges should follow power relationships. Our results, however, are consistent with a theoretical approach involving cation exchange reactions in a highly heterogeneous environment. Indeed, our study illustrates the heterogeneous nature of the soils, as the power relationship has been obscured completely. Soilwater chemistries were markedly different from those of streamwater, particularly under dry conditions. During baseflow, the stream is fed by groundwater, and the soils are probably disconnected from the stream. During humid periods, the chemistry of the streamwater tends toward that of the deep subsurface flow. Chemical hydrograph separation indicates that, on average, stormflow water comprises an approximately one to one mixture of groundwater and deep subsurface flow.</style></abstract></record></records></xml>