RESEARCHES REGARDING COLLOIDAL AND OXIDATIVE STABILITY OF CONFECTIONERY PRODUCTS (HALVA) OBTAINED FROM SUNFLOWER

Doctoral thesis (2012)

Prior to the experimental part of this work, a literature review related to the aim of this thesis was realized. Firstly, it describes the balanced nutritional composition of sunflower seeds and their ... [more ▼]

Prior to the experimental part of this work, a literature review related to the aim of this thesis was realized. Firstly, it describes the balanced nutritional composition of sunflower seeds and their applications as food industry raw materials. It follows the state of the art of sunflower halva manufacturing with emphasis on the main issues encountered during processing. Consequently, as the researches concerning sunflower halva type products are very limited, it was decided to consolidate the identified quality problems (i.e., oil separation problem and rancidity during storage) background by given basic principles concerning foods physical properties (e.g., rheology, particle size distribution), as well as food products colloidal and oxidative stability basics. Moreover, fundamentals of NIR spectroscopy and chemometrics give the background for a proposal of an alternative nondestructive and rapid method to assess lipid oxidation in sunflower halva type products. Firstly, the experimental part of this thesis focuses on comparing the physico-chemical properties of different particle size tahini prototypes including also the industrial reference in order to understand tahini behavior and structure. Studying the physico-chemical properties of different granulometries tahini samples allows, for the first time, the prediction of a schematic sunflower tahini structure – knowledge needed to understand physical and oxidative instability for this type of products. Moreover, the experimental work aimed to assess the influence of particle size distribution, storage time and temperature on sunflower tahini colloidal and oxidative stability. Furthermore, during this work there were developed two new methodologies, a laser diffraction method to determine particle size distribution of sunflower tahini, as well as a near infrared rapid method coupled with chemometrics to assess in situ sunflower tahini oxidative status. [less ▲]

Étude des médiations sur le marché du travail : l'apport de la nouvelle sociologie économique à l'économie des conventions.

Conference (2012, July 03)

Cette communication s’inscrit dans le cadre d’une recherche traitant des médiations sur le marché du travail, et plus précisément du rôle des intermédiaires dans la fluidification des appariements et la ... [more ▼]

Cette communication s’inscrit dans le cadre d’une recherche traitant des médiations sur le marché du travail, et plus précisément du rôle des intermédiaires dans la fluidification des appariements et la sécurisation des parcours professionnels. La nouvelle sociologie économique (NSE) et l’économie des conventions (EC) offrent des pistes intéressantes pour comprendre le fonctionnement de marchés concrets, comme celui du travail. Néanmoins, ces courants présentent tous deux des limites qu’une articulation théorique permettrait, selon nous, de dépasser. A la conception néoclassique d’un « marché autorégulateur », la NSE substitue une analyse des facteurs économiques, culturels et politiques qui contribuent à l’émergence d’une configuration particulière d’échange de biens et de services. Les théoriciens de l’EC quant à eux, portent un intérêt tout particulier pour l’analyse de l’activité de médiation sur le marché du travail et de la pluralité des modes d’évaluation des compétences. Cependant, l’EC ne cherche pas à expliquer l’émergence des conventions constitutives, considérées dans l’analyse comme variables indépendantes. En outre, l’EC présente une conception « sous-socialisée » des intermédiaires du marché du travail. Il nous semble que la NSE pourrait considérablement enrichir l’analyse des méditations à l’aide de notions clés telles que l’encastrement ou encore la construction sociale des activités économiques, restituant de la sorte au monde social toute son épaisseur. [less ▲]

Biophysical Approaches Modelling the Interaction of the Antimicrobial Mycosubtilin with Sterol‐Containing Membranes of Sensitive Cells

Poster (2012, July)

What is the position of agritourism on the Walloon tourist market?

in Potocnik, Irma (Ed.) Agritourism between embeddedness and internationalization (2012, June)

Marginal practices composed by diversified services, agritourism remains a complex subject of study in some European rural areas where it is clamed as a smart solution of diversification. Even if the ... [more ▼]

Marginal practices composed by diversified services, agritourism remains a complex subject of study in some European rural areas where it is clamed as a smart solution of diversification. Even if the phenomenon is quite weak on the Walloon tourist market, it is important from the point of view of farmers for who agritourism is a mean of supplementary incomes. Based on crossed informations and data coming from surveys of potential tourists carried out in tourist poles, life-histories of local tenants and interviews of privileged witnesses as well as content analysis of promotional folders and websites, the position of agritourism on the Walloon tourist market is analysed. It is showed firstly that agritourism is a niche market, which risk dissociating itself from the first pathway if the links between the farm and the tourism continue to weaken. Most of the time agritourism is complementary to other tourist offers but it can also compete with some other forms of tourism in particular cases. Furthermore the demand influences agritourism development through different images and representations that may go off the agricultural practices than with which farmers need to adapt their activities. Finally, different diversifications are developed according to geographic settings. [less ▲]

Les partenariats publics-privés à l'aune d'une sociologie de la confiance

Scientific conference (2011, November 18)

Violence en milieu scolaire : des enseignants désemparés? Étude d'entretiens de professeurs issus d'écoles secondaires en Communauté française de Belgique.

Master's dissertation (2010)

Elaboration of a PK/PD model of tiludronate in horses: a preliminary study

Report (2008)

Carte hydrogéologique, Aye - Marche-en-Famenne 54/7-8, 1/25.000 : [notice explicative]

Book published by Ministère de la Région wallonne, Direction générale des ressources naturelles et de l'environnement - Edition provisoire : juillet 2006 (2006)

Carte hydrogéologique, Hamoir - Ferrières 49/5-6, 1/25.000 : [notice explicative]

Book published by Ministère de la Région wallonne, Direction générale des ressources naturelles et de l'environnement - Edition provisoire : juin 2005 (2005)

A case of Rhodococcus equi infection in an adult probably immuno-compromised horses

in Proceedings of the Leipziger Tierärzte Kongress (2005)