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    Determination of physicochemical, functional,and morphological properties of Prosopis farcta (Çeti•) seed galactomannan as a new hydrocolloid source: Comparison with locust bean gum
    (Elsevier Sci Ltd, 2025) Ektiren, Demet; Gunes, Serap; Vardin, Hasan
    The present study investigated the properties of galactomannan, a water-soluble polysaccharide extracted from the Prosopis farcta (& Ccedil;eti) plant. These properties encompassed its functional characteristics, chemical composition, rheological behavior, and morphological structure. The results were systematically compared with those of the commercially utilized locust bean gum (LBG). Following ethanol precipitation, the yield of Prosopis farcta galactomannan (PFG) was determined to be 22.4 +/- 0.5 %. The mannose-to-galactose (M: G) ratios of PFG and LBG were calculated as 1.7:1 and 3.3:1, respectively. The solubility of PFG exhibited a temperature-dependent increase akin to that of LBG. Notably, PFG demonstrated superior emulsion capacity and stability even at low concentrations. Additionally, the X-ray diffraction (XRD) analysis revealed asymmetric broad peaks around the 2 theta = 20 degrees diffraction angle, signifying the amorphous nature of PFG. Scanning electron microscopy (SEM) images, obtained after dissolving both PFG and LBG in deionized water and freeze-drying them, displayed a fibrous filament network structure in both samples.