Extraction of ferulic acid, a natural antioxidant, for potential agro-industrial applications.

Poster (2008, March 05)

La membrane du globule gras du lait (MFGM) : une composition et une structure originale.

Poster (2008, January 23)

Phospholipids quantification in vegetable oil degumming residues by HPLC-ELSD

Poster (2008)

Enzymatically prepared n-alkyl esters of glucuronic acid: The effect of freeze-drying conditions and hydrophobic chain length on thermal behavior

in Journal of Colloid & Interface Science (2008), 321(1), 154-158

In this work, some of the physicochemical properties of enzymatically prepared n-alkyl esters of glucuronic acid are presented. Two questions are addressed. The first concerns the influence of post ... [more ▼]

In this work, some of the physicochemical properties of enzymatically prepared n-alkyl esters of glucuronic acid are presented. Two questions are addressed. The first concerns the influence of post-purification freeze-drying condition's on octyl glucuronate thermotropic behavior. Depending on the amount of water added before freeze-drying, the alpha/beta anomeric ratio determined by H-1 NMR is affected and differences are observed in DSC thermograms probably due to polymorphism. The second question concerns the effect of hydrophobic chain length on the thermal behavior. An increase of both transition temperature and transition enthalpy is observed by increasing the number of carbon atoms in the alkyl chain (C8 < C10 < C12 < C14). This kind of results can provide relevant information for the processing and the practical use of these nonionic surfactants. (C) 2008 Elsevier Inc. All rights reserved. [less ▲]

Date flesh: Chemical composition and characteristics of the dietary fibre

in Food Chemistry (2008), 111(3), 676-682

The date by-products of two date palm (Phoenix dactylifera L.) cultivars, Deglet-Nour and Allig, from the Degach region (Tunisia), were analysed for their main chemical composition. Studies were also ... [more ▼]

The date by-products of two date palm (Phoenix dactylifera L.) cultivars, Deglet-Nour and Allig, from the Degach region (Tunisia), were analysed for their main chemical composition. Studies were also conducted on the physicochemical properties (colour, water and oil-holding capacity and theological behaviour) of dietary fibre (DF) extracted from date flesh. The following values (on a dry matter basis: DM) were obtained for fleshes of Deglet-Nour and Allig cultivars, respectively: sucrose 52.7% and 13.9%, glucose 13.7% and 29.9%, fructose 12.6% and 29.0%, total dietary fibre 14.4% and 18.4%, protein 2.1% and 3%, ash 2.5% and 2.52%. Insoluble DF, the major fraction of total DF, constituted 9.19-11.7% DM for Deglet-Nour and Allig, respectively. The elaboration of DF concentrates from date fleshes was characterised by an extraction yield of 67%. The chemical composition of these DF concentrates showed high total DF contents (between 88% and 92.4% DM) and low protein and ash contents (8.98-9.12% and 2.0-2.1% DM, respectively). The DF concentrates showed a high water-holding capacity (similar to 15.5 g water/g sample) and oil-holding capacity (similar to 9.7 g oil/g sample),and pseudoplasticity behaviour of their suspensions. Thus, date DF concentrates may not only be an excellent source of DF but an ingredient for the food industry. (c) 2008 Elsevier Ltd. All rights reserved. [less ▲]

Partial replacement of meat by pea fiber and wheat fiber: Effect on the chemical composition, cooking characteristics and sensory properties of beef burgers

in Journal of Food Quality (2008), 31(4), 480-489

Pea fiber concentrate (PFC) and wheat fiber concentrate (WFC) were used as dietary fibers in beef burger formulation. These fibers were characterized in terms of chemical composition and techno-functional ... [more ▼]

Pea fiber concentrate (PFC) and wheat fiber concentrate (WFC) were used as dietary fibers in beef burger formulation. These fibers were characterized in terms of chemical composition and techno-functional properties. WFC and PFC presented similar water-binding capacity (3.12 g/g and 3.07 g/g, respectively), whereas a higher oil-binding capacity was observed for WFC (2.89 g/g versus 1.74 g/g). In this study, the level of PFC was fixed at 0.5%, whereas different levels of WFC (0.5%, 1% and 1.5%) were tested. The water-holding capacity of raw beef burger was significantly higher with the addition of fibers. The use of these dietary fibers in beef burger formulation improves their cooking properties, i.e., increases the cooking yield and decreases the shrinkage, and minimizes production cost without degradation of sensory properties. [less ▲]

Influence of nitrogen fertilizer treatments on soft wheat starch characteristics

in Weegels, P. L.; Courtin, C. M.; Arrachid, A. (Eds.) et al Consummer driven cereal innovation: where science meets industry (2008)

Effect of the sowing date on physicochemical and fonctional properties of native starches extracted from European soft wheat (Triticum aestivum L.)

in Weegels, P. L.; Courtin, C. M.; Arrachid, A. (Eds.) et al Consummer driven cereal innovation: where science meets industry (2008)

Influence of nitrogen fertilizer treatments on soft wheat starch characteristics

Poster (2008)

Numerical and experimental characterization of flow in a radial flow cell with aspect ration one.

Conference (2007, December 10)