References of "2006"
     in
Bookmark and Share    
See detailStrategy for the qualitative and quantitative analysis of crop syrup containing enzymatically produced Isomaltooligosaccharides known as emerging prebiotics.
Goffin, Dorothée ULg; Blecker, Christophe ULg; Wathelet, Bernard ULg et al

Poster (2006)

Isomaltooligosaccharides (IMOs) are non-digestible oligosaccharides, considered as prebiotics and therefore aim to selectively feed probiotics indigenous to the human colon. Recent data obtained in human ... [more ▼]

Isomaltooligosaccharides (IMOs) are non-digestible oligosaccharides, considered as prebiotics and therefore aim to selectively feed probiotics indigenous to the human colon. Recent data obtained in human subjects, support the involvement of dietary oligosaccharides in physiological processes in the different intestinal cell type and also outside the gastrointestinal tract (e.g. hormone production, lipid and carbohydrate metabolism). IMOs consists of glucose monomers linked by at least one α-1-6, or in a lower proportion α -1-3 (nigerose family) or α -1-2 (kojibiose family) glucosidic linkages. In our case they are produced enzymatically from corn starch. It results in a very complex mixture with molecules characterized at the same time by their DP value (from 2 to ~20), linkages types (α-1-2, 3 or 6) and the proportion and position of each type of linkage (only α -1-6 or combined types). The challenge of this study was to find a qualitative and quantitative method to characterize the syrups. In a subsequent study, every unidentified peak could be determined by NMR or Mass spectrometry. Three different chromatographic methods have been tested and compared over their selectivity, sensibility, robustness, applicability and their quantitative power. The HPLC-RID (Refractive Index Detector) used with a Prevail Carbohydrate column (Alltech), adapted for carbohydrates with a certain value of DP, appear to be poorly selective due to the obligation of working in isocratic conditions. The HPLC-ELSD (Evaporating Light Scattering Detector) used with the same column gave a very good separation upon the DP as the Prevail accepts a wide range of solvant changing and even a separation of the different DP 2 molecules. The sensibility was also improved due to the stability of the baseline. The quantitative analysis is a bit more awkward due to the relatively limited linear portion of the calibration curve. High-performance Anion Exchange Chromatography coupled with Pulsed Amperometric Detection (HPAEC-PAD) appeared to deserve a special mention, since it provides selective separation and sensitive detection. In fact, this technique is the only chromatographic one to separate with effectiveness homologue molecules having a difference only in their DP (up to high DPs) or linkage types. This is due to the separation mode based on the difference in ionic force of the sugars in alkaline conditions (mainly due to the DP and the structure of the molecule). However, during the detection, the electrochemical behavior of carbohydrates can be affected by molecular weight as well as by structural differences giving rise to different response factors; as a consequence, HPAEC-PAD is not generally considered as suitable for quantitative studies of complex mixtures of oligosaccharides. In this work a methodological approach is presented in order to get a quantitative response through a rigorous methodology for our IMOs. It also opens the way to the theoretical determination of the response factor for the homologue molecules in relation with their structure and DP. [less ▲]

Detailed reference viewed: 179 (9 ULg)
Peer Reviewed
See detailExposé des faits entourant la procédure relative aux projets d’autoroute : le cas du tracé d’une voie à grand gabarit au Sud de Charleroi (entre Charleroi et Somzée) et le cas du contournement de Couvin et son prolongement par la liaison Couvin-Bruly
Hanson, Sophie ULg

in Spannowsky (Ed.) Planification et autorisation des autoroutes - Comparaison des systèmes d'aménagement du territoire dans la Grande Région "Sarre, Lorraine, Grand-Duché de Luxembourg, Région wallonne et Rhénanie-Palatinat (2006)

Detailed reference viewed: 23 (1 ULg)
Full Text
See detailLes processus de paternalité et le passage à la paternité
Naziri, Despina ULg; De Coster, L.

in Gillot-de-Vries, F. (Ed.) Les parentalités d'aujourd'hui (2006)

Detailed reference viewed: 194 (21 ULg)
Peer Reviewed
See detailTraitements STAP sous-optimaux (Suboptimal STAP Processing)
De Grève, Sébastien; Ries, Philippe; Verly, Jacques ULg

Conference (2006)

Detailed reference viewed: 7 (0 ULg)
See detailThe Future of Space-Based Interferometry
Carpenter, K. G.; Allen, R.; Benson, J. et al

in “Future Directions for Interferometry” (2006)

Detailed reference viewed: 14 (1 ULg)
Peer Reviewed
See detailApproches par l'erreur totale en transfert analytique
Dewé, Walthère ULg; Boulanger, Bruno ULg; Govaerts, B. et al

Conference (2006)

Detailed reference viewed: 70 (3 ULg)
Full Text
Peer Reviewed
See detailEffects of a reduction of diet crude protein content on gaseous emissions from deep-litter pens for fattening pigs
Philippe, François-Xavier ULg; Laitat, Martine ULg; Canart, Bernard et al

in Animal Research (2006), 55(5), 397-407

Two successive batches of 32 fattening pigs per batch were each divided into 2 homogenous groups of 16 pigs fed either a high crude protein (CP) level diet (HP-groups) or a low crude protein level diet ... [more ▼]

Two successive batches of 32 fattening pigs per batch were each divided into 2 homogenous groups of 16 pigs fed either a high crude protein (CP) level diet (HP-groups) or a low crude protein level diet balanced with synthetic amino acids (LP-groups). Pigs were raised on straw-based deep litters in separate rooms according to diets. Once a month, the emissions of ammonia (NH3), nitrous oxide (N2O), methane (CH4), carbon dioxide (CO2) and water vapour (H2O) were measured continuously for 6 days consecutively. The mean nitrogen (N) intakes of pigs from HP-groups and LP-groups were 6.83 kg and 5.78 kg per pig respectively with mean initial and final pig body weights of 26.6 and 111.4 kg. There was no significant difference between the daily weight gains with regards to the diet CP content. At the end of the fattening periods, the N-contents of the litters were on average 1.84 kg per pig for the HP-groups and 1.56 kg per pig for the LP-groups. Gaseous emissions in the room with LP-groups were, compared with the emissions in the room with HP-groups, 26.1% lower for NH3 (10.60 vs. 14.35 g per pig per day), 12.8% lower for CH4 (13.12 vs. 15.04 g per pig per day) and 2 times higher for N2O (1.02 vs. 0.52 g per pig per day). The emissions of CO2 and H2O were not significantly different according to the diet CP level. [less ▲]

Detailed reference viewed: 56 (15 ULg)
Full Text
See detailL’image dans le texte ou le texte dans l’image ? : Le cas de l’Égypte ancienne
Winand, Jean ULg

in Visible (2006), 2(2), 141-158

Detailed reference viewed: 127 (5 ULg)
Full Text
Peer Reviewed
See detailAssessment of plasma profile of pregnancy-associated glycoprotein (PAG) in sheep with a heterologous (anti-caPAG(55+59)) RIA diagnosing and its potential for pregnancy
Ledezma-Torres, R. A.; Beckers, Jean-François ULg; Holtz, W.

in Theriogenology (2006), 66(4), 906-912

The purpose of the present investigation was to generate pregnancy associated glycoprotein (PAG)-profiles throughout pregnancy in a heterogenous sample of sheep using a radioimmunoassay with a ... [more ▼]

The purpose of the present investigation was to generate pregnancy associated glycoprotein (PAG)-profiles throughout pregnancy in a heterogenous sample of sheep using a radioimmunoassay with a heterologous antibody (anti-caPAG55,59, #708) and utilize them for the purpose of pregnancy detection. From 2 weeks after the introduction of males into the breeding herd until 4 weeks after parturition, weekly blood samples were collected from 66 pregnant and 25 non-pregnant ewes of various breeds. Between 3 and 5 weeks after conception, plasma PAG levels increased, remained almost stable until week 17, then continued to increase, culminating in a drastic surge during the last 2 weeks of pregnancy. By 4 weeks of gestation, the plasma PAG level exceeded the level typical for non-pregnant ewes by five standard deviations, permitting a reliable pregnancy diagnosis. Plasma PAG levels were higher in twin-bearing ewes than in ewes carrying a single lamb, differences getting more evident as pregnancy proceeded. Neither breed and parity of the mother nor sex and weight of lambs home exerted a significant effect. The heterologous assay system utilizing a caprine antibody proved to deliver results that are more consistent and less depending on various variables than those used in other studies. It may be concluded that, at the present state of development, the assay provides a reliable means of diagnosing pregnancy in sheep from the 4th week after they have been bred onward. (c) 2006 Elsevier Inc. All rights reserved. [less ▲]

Detailed reference viewed: 50 (2 ULg)
Full Text
Peer Reviewed
See detailL'image du mois. Carcinome basocellulaire chez un patient psoriasique.
Thirion, L.; Pierard, Claudine ULg; Quatresooz, Pascale ULg et al

in Revue Médicale de Liège (2006), 61(12), 795-6

Detailed reference viewed: 155 (2 ULg)
See detailLa Censure de l’imprimé. Belgique, France, Québec et Suisse romande. XIXe et XXe siècles
Durand, Pascal ULg; Hébert, P.; Mollier, J.-Y. et al

Book published by Nota Bene (2006)

Detailed reference viewed: 94 (8 ULg)
See detailRecomposer sa vie ailleurs ; Recherche-action auprès des familles primo-arrivantes
Born, Michel ULg; Deccache, A.; Desmet, H. et al

Book published by L'Harmattan (2006)

Detailed reference viewed: 36 (3 ULg)
Peer Reviewed
See detailProteomics of marine microorganisms
Voigt, B.; Hieu, C.X.; Wilmes, B. et al

Conference (2006)

Detailed reference viewed: 9 (0 ULg)
Peer Reviewed
See detailAccuracy and precision : total error vs 4-6-30
Boulanger, Bruno ULg; Dewé, Walthère ULg; Hubert, Philippe ULg et al

Conference (2006)

Detailed reference viewed: 70 (3 ULg)
Full Text
Peer Reviewed
See detailTools to assess iodine deficiency in calves born from deficient and non deficient dams
Guyot, Hugues ULg; Uyttenhoef, Aude; Lebreton, Pascal et al

Poster (2006)

Detailed reference viewed: 21 (5 ULg)