References of "Blecker, Christophe"
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See detailIncorporation in bread of dietary fibres from by-products of the agro-transformation.
Roiseux, Olivier; Blecker, Christophe ULg; Sindic, Marianne ULg et al

Poster (2006, October 17)

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See detailStudy of the physical changes of spray-dried inulin during storage.
Ronkart, Sébastien; Paquot, Michel ULg; Fougnies, C. et al

Poster (2006, October 17)

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See detailPhysicochemical characterization of a dietary fibre concentrate extracted from date pulp.
Roiseux, Olivier; Blecker, Christophe ULg; Besbes, Souhail et al

Poster (2006, October)

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See detailIncorporation in bread of dietary fibres from by-products of the agro-transformations.
Roiseux, Olivier; Blecker, Christophe ULg; Vandebeke, E. et al

Poster (2006, October)

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See detailChemical composition and lipid fraction characteristics of aleppo pine (Pinus halepensis Mill.) seeds cultivated in Tunisia
Cheikh-Rouhou, S.; Besbes, S.; Hentati, B. et al

Poster (2006, September)

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See detailValorisation of dietary fibre concentrate from date pulp.
Roiseux, Olivier; Blecker, Christophe ULg; Vanderbeke, E. et al

Poster (2006, June)

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See detailExtraction and characterisation of a dietary fibre concentrate from date pulp
Roiseux, O.; Blecker, Christophe ULg; Besbes, S. et al

Poster (2006, June)

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See detailDonnées biochimiques, sensorielles et fonctionnelles sur l'huile de noyaux de dattes
Besbes, S.; Blecker, Christophe ULg; Deroanne, C. et al

Conference (2006, May)

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See detailActivité biologique de la sève phloémique du palmier dattier Phoenix dactylifera L.
Ben Thabet, Imène; Francis, Frédéric ULg; Blecker, Christophe ULg et al

Poster (2006, May)

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See detailPreparation and characterization of osmodehydrated fruit from lemon and date by-products.
Masmoudi, M.; Besbes, Souhail; Blecker, Christophe ULg et al

Poster (2006, May)

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See detailComposition chimique des graines de pin d'Alep (Pinus halepensis Mill.) d'origine tunisienne et caracterisation de la fraction lipidique.
Cheikh Rouhou, S.; Hentati, B.; Besbes, Souhail et al

Poster (2006, May)

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See detailNigella sativa L. : Chemical composition and characteristics of its lipid fraction.
Cheikh Rouhou, S.; Besbes, Souhail; Hentati, B. et al

Poster (2006, March)

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See detailTotal water determination in inulin using the volumetric Karl Fischer titration and external water extraction in formamide.
Ronkart, Sébastien; Paquot, Michel ULg; Fougnies, C. et al

Poster (2006, March)

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See detailCaking phenomena and physical parameters of amorphous inulin related to adsorption and desorption isotherms.
Ronkart, Sébastien; Paquot, Michel ULg; Fougnies et al

Poster (2006, March)

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See detailDetermination of physical changes of inulin related to sorption isotherms: An X-ray diffraction, modulated differential scanning calorimetry and environmental scanning electron microscopy study
Ronkart, Sébastien ULg; Blecker, Christophe ULg; Fougnies, C. et al

in Carbohydrate Polymers (2006), 63(2), 210-217

This paper gives a relationship between powdered inulin behaviour and physical parameters determination. Glass transition temperature (T,) and development of crystallinity were measured in relation to the ... [more ▼]

This paper gives a relationship between powdered inulin behaviour and physical parameters determination. Glass transition temperature (T,) and development of crystallinity were measured in relation to the water moisture of the polymer. These parameters were obtained by Modulated Differential Scanning Calorimetry (MDSC) and powder X-ray diffraction, respectively. In order to change the water content of the powder, adsorption and desorption isotherms (using different relative humidity storage conditions) were done and successfully fitted to the Guggenheim-Anderson-de Boer (GAB) model. Dependent on the relative humidity storage, a caking phenomenon occurred when glass transition temperature was under storage temperature. An Environmental Scanning Electron Microscopy (ESEM) study showed a structural change when water activity increased above 0.56 at 20 degrees C. A correlation between the increase of the crystallinity and the hardening of the powder was determined. ESEM permitted an observation of the development of some crystal structures among the amorphous system, confirmed by an increase of the diffraction peaks obtained by powder X-ray diffraction. These observations lead to an understanding of the physical characteristics of inulin related to the water moisture. (c) 2005 Elsevier Ltd. All rights reserved. [less ▲]

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See detailVoies de valorisation des pulpes de dattes.
Besbes, Souhail; Cheikh-Rouhou, S.; Blecker, Christophe ULg et al

in Microbiol. Hyg. Alim. (2006), 18(52), 8-15

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See detailDetermination of total water content in inulin using the volumetric Karl Fischer titration
Ronkart, S. N.; Paquot, Michel ULg; Fougnies, C. et al

in Talanta (2006), 70(5), 1006-1010

A new sample preparation method for the water content determination of mulin by volumetric Karl Fischer (KF) titration was developed and compared to the usual method of introducing the sample directly in ... [more ▼]

A new sample preparation method for the water content determination of mulin by volumetric Karl Fischer (KF) titration was developed and compared to the usual method of introducing the sample directly in the methanol-based working medium, modified or not by formamide (1:3, v/v) in order to increase sample solubility. In the proposed method, inulins were externally prepared by dissolving them in pure formamide (2.5:7.5, w/w). The time of analysis of the liquid/liquid reaction of the new method between the dissolved sample and the reaction medium is about 1-2 min, while the usual KF method is stopped after the 10 min delay time. The developed method permits the determination of water included in the crystals of the sample, confirmed by analysing both crystalline and amorphous mulin samples. Another advantage of this new method is its applicability for the water content determination of other polysaccharides that are not readily soluble in the working medium. Moreover. water content determination can be done by any type of volumetric KF titrator, as this proposed technique is not dependent on any additional tools such as a built-in homogeniser or a heatable titration beaker. (c) 2006 Elsevier B.V. All rights reserved. [less ▲]

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