Valorization of sustainable vegetable oil deodorizer distillate as a novel fatliquor / El-Shahat H. A. Nashy in COLLAGEN AND LEATHER, Vol. 5 (2023)  

[article]  inCOLLAGEN AND LEATHER > Vol. 5 (2023) . - 13 p. Titre : Valorization of sustainable vegetable oil deodorizer distillate as a novel fatliquor Type de document : texte imprimé Auteurs : El-Shahat H. A. Nashy, Auteur ; Adel Gabr Abdel-Razek, Auteur ; Minar Mahmoud M. Hassanein, Auteur ; Ghada A. Abo-Elwafa, Auteur ; Hamed Elsayed, Auteur Année de publication : 2023 Article en page(s) : 13 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antibactériens Biomolécules actives Caractérisation Cuirs et peaux -- Propriétés mécaniques Désodorisation Dureté (matériaux) Phosphorylation La phosphorylation est l'addition d'un groupe phosphate (un phosphoryl PO32- plus précisément) qui est transféré à une protéine ou à une petite molécule, telle le glucose ou l'adénine. Produits de nourriture du cuir Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The deodorizer distillate (DD) is a byproduct of vegetable oil processing industry and is rich in functional bioactive components. This study aimed to employ phosphorylation modification for DD to produce a new sustainable fatliquor. The bioactive ingredients in DD, namely fatty acids, sterols, and tocopherols, were determined by using HPLC and GLC. The results revealed that the DD sample contained a high percentage of unsaturated fatty acids (72.3%) and high levels of γ and δ-tocopherols (54.8% and 31.60%, respectively). Mechanical parameters (tensile strength, elongation at break, and tear strength) of leather were improved after being treated with the prepared fatliquor emulsion. Eventually, SEM showed that the texture of the fatliquored leather had been remarkably enhanced. Moreover, the fatliquored leather possessed effective antibacterial effect against the specified +ve, −ve bacteria, and Candida albicans microorganisms. The strength, fullness, soft handle, and elasticity of leather were all improved, and the grain of leather was protected from becoming loose after drying. Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of DD for chromatographic analysis - Determination of bioactive components - Phosphorylation processes - Characterization of the PDD sample - Fatliquoring process - Characterization of the fatliquored leather - RESULTS AND DISCUSSION : Characterization of DD - Characterization of the PDD sample - Characterization of the fatliquored leather - Table 1 : FA composition of DD sample - Table 2 : HPLC analysis of TAG molecular species of DD sample - Table 3 : Mechanical properties and hardness of fatliquored leather DOI : https://doi.org/10.1186/s42825-023-00124-8 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-023-00124-8.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40067 [article]

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