Contribution à l'extraction et à la caractérisation des fibres de la pulpe de dattes

Conference (2004, March 21)

Surface properties of two closely related sugar esters : glucose octanoate and octyl glucuronate.

Poster (2004, February 11)

Interfacial study of lipolysis inhibition by proteins.

Poster (2004, February 11)

Study of synthesis and surface activity of inulin lauric esters.

Poster (2004, February 11)

Physicochemical properties and technological functionality of dietary fibres.

in Food Chemistry (2004), (6), 115-124

Quality characteristics and oxydative stability of date seed oil during storage.

in Food Science & Technology International (2004), 10(5), 333-338

Date seed oil: Phenolic, tocopherol and sterol profiles

in Journal of Food Lipids (2004), 11(4), 251-265

Oils extracted from the seeds of two date palm (Phoenix dactylifera L) cultivars, Deglet Nour and Allig, collected from Tunisia, were compared in terms of phenolic, tocopherol and,sterol profiles. These ... [more ▼]

Oils extracted from the seeds of two date palm (Phoenix dactylifera L) cultivars, Deglet Nour and Allig, collected from Tunisia, were compared in terms of phenolic, tocopherol and,sterol profiles. These minor components are not only very important for functional properties of oils (oxidation resistance, taste, aroma and color), but could also have many health benefits. Total phenols, considered as the principal source of oil oxidation resistance, ranged from 520.81 for Deglet Nour to 220.32 mg/kg for Allig. High performance liquid chromatography revealed eight identified peaks for which the major component was hydroxytyrosol (10.21%) for Deglet Nour and tyrosol for Allig (8.10%). Total sterol content was 3500 and 3000 mg/kg for Deglet Nour and Allig, respectively. The sterol marker, beta-sitosterol, accounted for 83.31 and 78.66% of total sterols in Deglet Nour and Allig seed oils, respectively. Alpha-tocopherol was the predominant component in both date seed oils (24.97-38.85%). [less ▲]

Quality characteristics and oxidative stability of date seed oil during storage

in Food Science & Technology International (2004), 10(5), 333-338

Studies were conducted on some quality characteristics of date seed oil from two date palm cultivars (Phoenix dactylifera L.): Deglet Nour and Allig. The following values were obtained for Deglet Nour and ... [more ▼]

Studies were conducted on some quality characteristics of date seed oil from two date palm cultivars (Phoenix dactylifera L.): Deglet Nour and Allig. The following values were obtained for Deglet Nour and Allig cultivars respectively: unsaponifiable matter 8.92-7.76%, iodine value 45.49-44.08, total phenols 520.81-220.32 mug/g oil, chlorophylls 0.86-0.58 mug/g oil, viscosity 18.50-20.50 mPa.s, refractive index 1.457-1.462, acidity 1.06-2.10mg KOH/g oil and peroxide index 16.00-25.00 meq O-2/100g oil. Lipid fractionation of date seed oil yielded 98.30-97.30% neutral lipids, 97.26-96.90% triglycerides, 0.25-0.18% phospholipids and 0.36-0.31% sterols. Gas-liquid chromatography revealed that the major unsaturated fatty acid was oleic acid (39.17-42.13%) while the main saturated fatty acid was lauric acid (24.34-22.56%). Date seed oil showed high medium molecular weight triglycerides (C32-C42, about 27%). Extinction coefficients at 232 nm and 270 nm increased slightly during 40 days in oven (60degreesC) showing that date seed oil could be easily stored. The production of oil from date seeds provides the use of a renewable resource, and at the same time adding value to agricultural products. [less ▲]

Crèmes laitières reconstituées

Patent (2003)

Effect of the inclusion time of extruded linseed supplementation before slaughter on n-3 fatty acids enrichment of chicken meat.

Poster (2003, September)