0000000000870917

AUTHOR

Moncef Nasri

showing 3 related works from this author

Microstructure and characteristic properties of dogfish skin gelatin gels prepared by freeze/spray-drying methods

2020

International audience; The effects of two pretreatments (microwaves or oven-drying) on the dogfish (Squalus acanthias) skin as well as two drying processes (freeze-drying or spray-drying) on the extracted gelatins were studied. Thus six types of gelatins were obtained, three of which were freeze-dried (FG) and the others were spray-dried (SG), from the untreated skin (US), microwaves-pretreated skin (MS) and oven-pretreated skin (OS). The highest yield (8.67%) was obtained for the OSFG, while the lowest one (3.06%) was measured for the OSSG. Interestingly, all gelatins exhibited relatively high protein (84.02-89.53%), and low lipid (0.50-1.71%) and ash (3.05-7.17%) contents. In addition, g…

food.ingredientDogfish skinColor02 engineering and technologyBiochemistryGelatinPhysico-chemical properties03 medical and health scienceschemistry.chemical_compoundIngredientfoodSqualus acanthiasHardnessStructural BiologyAmideSpectroscopy Fourier Transform InfraredAnimalsTransition TemperatureAmino AcidsDesiccationMicrowavesMicrostructureMolecular BiologySkin030304 developmental biology0303 health sciencesChromatographyCalorimetry Differential ScanningHigh proteinGeneral Medicine021001 nanoscience & nanotechnologyMicrostructureAmidesFreeze DryingchemistryDogfishYield (chemistry)Spray dryingMicroscopy Electron ScanningGelatin0210 nano-technologyGels[SDV.AEN]Life Sciences [q-bio]/Food and NutritionInternational Journal of Biological Macromolecules
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Design of Gelatin Pouches for the Preservation of Flaxseed Oil during Storage

2020

Flaxseed oil (FO) is composed mainly of polyunsaturated fatty acids that are very sensitive to oxidation induced by oxygen, temperature, and light. To overcome this problem, gelatin-based films containing glucose are crosslinked via the Maillard reaction (MR) at 120 &deg

Materials sciencefood.ingredient030309 nutrition & dieteticsThiobarbituric acidchemistry.chemical_elementflaxseed oilGelatinOxygenPeroxide03 medical and health sciencessymbols.namesakechemistry.chemical_compound0404 agricultural biotechnologyfoodLipid oxidationlipid oxidationMaterials ChemistryTBARSgelatin pouchesFood sciencechemistry.chemical_classification0303 health sciences04 agricultural and veterinary sciencesSurfaces and Interfaces040401 food science3. Good healthSurfaces Coatings and FilmsMaillard reactionMaillard reactionchemistrylcsh:TA1-2040symbolslcsh:Engineering (General). Civil engineering (General)[SDV.AEN]Life Sciences [q-bio]/Food and NutritionPolyunsaturated fatty acidCoatings
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Enhancement of structural, functional and antioxidant properties of fish gelatin films using Maillard reactions

2018

International audience; This study investigates the effect of Maillard reactions (MR) on the physico-chemical and biological properties of fish gelatin based edible films. Glucose was incorporated in gelatin film forming solutions at different glucose/lysine molar ratios: 0.5/1.0, 1.0/1.0 and 5.0/1.0. The MR was then induced by heating films at 90 °C for 24 h in dry conditions. Color changes and browning index measurements were used to pursue the MR kinetic. Results showed that the development of MR products was dependent on the glucose content and on the reaction time. Mechanical and thermal properties of treated films displayed an increase in tensile strength, elongation at break and glas…

food.ingredientAntioxidantDPPHGeneral Chemical Engineeringmedicine.medical_treatment[SDV]Life Sciences [q-bio]02 engineering and technologyGelatinContact anglesymbols.namesakechemistry.chemical_compound0404 agricultural biotechnologyfoodPhysicochemical propertyAntioxidant activitymedicineBrowning[SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular BiologyAqueous solutionChemistry04 agricultural and veterinary sciencesGeneral Chemistry021001 nanoscience & nanotechnology040401 food scienceMaillard reactionMaillard reactionGlucose/lysine ratiosymbolsFish gelatin0210 nano-technologyGlass transitionFood ScienceNuclear chemistryCross-linking
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