<?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%">Gallardo, Emerenciana</style></author><author><style face="normal" font="default" size="100%">Narváez-Rivas, Monica</style></author><author><style face="normal" font="default" size="100%">Pablos, Fernando</style></author><author><style face="normal" font="default" size="100%">Jurado, J. Marcos</style></author><author><style face="normal" font="default" size="100%">León-Camacho, Manuel</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Subcutaneous Fat Triacylglycerols Profile from Iberian Pigs as a Tool To Differentiate between Intensive and Extensive Fattening Systems</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Agricultural and Food Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">gas chromatography</style></keyword><keyword><style  face="normal" font="default" size="100%">iberian pig</style></keyword><keyword><style  face="normal" font="default" size="100%">pattern recognition</style></keyword><keyword><style  face="normal" font="default" size="100%">subcutaneous fat</style></keyword><keyword><style  face="normal" font="default" size="100%">triacylglycerols</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2012///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1021/jf2045312</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">60</style></volume><pages><style face="normal" font="default" size="100%">1645 - 1651</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Triacylglycerols of subcutaneous fat of Iberian pigs reared on two different feeding systems, extensive and intensive, have been determined by gas chromatography with a flame ionization detector. Analyses were performed on a column coated with a bonded stationary phase (50% phenyl?50% methylpolysiloxane) with hydrogen as the carrier gas. Lipids were extracted by melting the subcutaneous fat in a microwave oven and then filtering and dissolving in hexane. A total amount of 1995 samples from several campaigns were considered. Palmitoyl-stearyl-oleoyl glycerol and palmitoyl-dioleoyl glycerol were the most abundant triacylglycerols found in the samples. A study on the discriminating power of the triacylglycerols to differentiate samples according to the pig feeding system was performed. By using the triacylglycerols as chemical descriptors, principal component analysis, linear discriminant analysis, and soft independent modeling of class analogy were applied. Dioleoyl-linoleoyl glycerol and oleoyl-dilinoleoyl glycerol were the most discriminating variables. Variable?variable plots of these two glycerols allow separation of the samples according to their content.</style></abstract><issue><style face="normal" font="default" size="100%">7</style></issue><notes><style face="normal" font="default" size="100%">doi: 10.1021/jf2045312doi: 10.1021/jf2045312The following values have no corresponding Zotero field:&lt;br/&gt;publisher: American Chemical Society</style></notes></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%">Narváez-Rivas, M</style></author><author><style face="normal" font="default" size="100%">Pablos, F</style></author><author><style face="normal" font="default" size="100%">Jurado, J M</style></author><author><style face="normal" font="default" size="100%">León-Camacho, M</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Authentication of fattening diet of Iberian pigs according to their volatile compounds profile from raw subcutaneous fat.</style></title><secondary-title><style face="normal" font="default" size="100%">Analytical and bioanalytical chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Gas chromatography−mass spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">iberian pig</style></keyword><keyword><style  face="normal" font="default" size="100%">pattern recognition</style></keyword><keyword><style  face="normal" font="default" size="100%">subcutaneous fat</style></keyword><keyword><style  face="normal" font="default" size="100%">volatile compounds</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><volume><style face="normal" font="default" size="100%">399</style></volume><pages><style face="normal" font="default" size="100%">2115-2122</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The composition of volatile components of subcutaneous fat from Iberian pig has been studied. Purge and trap gas chromatography-mass spectrometry has been used. The composition of the volatile fraction of subcutaneous fat has been used for authentication purposes of different types of Iberian pig fat. Three types of this product have been considered, montanera, extensive cebo and intensive cebo. With classification purposes, several pattern recognition techniques have been applied. In order to find out possible tendencies in the sample distribution as well as the discriminant power of the variables, principal component analysis was applied as visualisation technique. Linear discriminant analysis (LDA) and soft independent modelling by class analogy (SIMCA) were used to obtain suitable classification models. LDA and SIMCA allowed the differentiation of three fattening diets by using the contents in 2,2,4,6,6-pentamethyl-heptane, m-xylene, 2,4-dimethyl-heptane, 6-methyl-tridecane, 1-methoxy-2-propanol, isopropyl alcohol, o-xylene, 3-ethyl-2,2-dimethyl-oxirane, 2,6-dimethyl-undecane, 3-methyl-3-pentanol and limonene.</style></abstract><accession-num><style face="normal" font="default" size="100%">21072505</style></accession-num></record></records></xml>