The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform

T. Wilusz - One of the best experts on this subject based on the ideXlab platform.

G. Kupryszewski - One of the best experts on this subject based on the ideXlab platform.

Salem Hamdi - One of the best experts on this subject based on the ideXlab platform.

  • functional properties of protein fractions obtained from pumpkin Cucurbita maxima seed
    International Journal of Food Properties, 2016
    Co-Authors: Leila Rezig, Alain Riaublanc, Moncef Chouaibi, Jacques Gueguen, Salem Hamdi
    Abstract:

    Protein fractions were extracted from pumpkin (Cucurbita maxima) seeds with deionized water, salt solution, and alkali solution, and characterized under alkaline (pH 8) and ionic strength conditions for protein solubility, interfacial pressure, and functional properties. The supernatants obtained from the protein fractions after hydration and centrifugation were designed deionized water supernatant, salt solution supernatant, and alkali solution supernatant. All protein fractions showed poor foamability and very low stability. The designed deionized water supernatant presented the highest emulsifying properties. In terms of stability, designed deionized water supernatant emulsions flocculate during storage but with low rates of coalescence compared to the two other fractions.

  • chemical composition and profile characterisation of pumpkin Cucurbita maxima seed oil
    Industrial Crops and Products, 2012
    Co-Authors: Leila Rezig, Moncef Chouaibi, Kamel Msaada, Salem Hamdi
    Abstract:

    Abstract Seeds of a Tunisian variety (Bejaoui) of pumpkin (Cucurbita maxima) were analysed for their main chemical composition and for their oil properties. Expressed on dry weight basis, seed moisture was 8.46%, whereas contents of proteins, fibre, ash, fat, and total sugars established at 33.92%, 3.97%, 21.97%, 31.57%, and 0.11% respectively. Gas chromatography revealed that the major fatty acids were oleic, linoleic, and palmitic acids (44.11%, 34.77%, and 15.97% respectively). Seed oil was also found to be rich in tocopherols with a predominance of δ-tocopherol (42.27%). The sterol marker β-sisosterol accounted for 39.6% of total sterols contained in seed oil of this variety. Six phenolic acids (protocatechuic, caffeic, syringic, vanillic, p-coumaric and ferulic) were detected, the syringic acid being predominant (7.96 mg/100 g). As a whole, based on its seed oil features, pumpkin may be considered as a valuable source for new multi-purpose products for industrial, cosmetic, and pharmaceutical utilisation.

K. Rolka - One of the best experts on this subject based on the ideXlab platform.

Ulf Ragnarsson - One of the best experts on this subject based on the ideXlab platform.