Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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Publication Index: search.filters.publicationIndex.ScopusSubject: search.filters.subject.Catechin

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  • Article
    Citation - WoS: 5
    Citation - Scopus: 5
    Stabilisation of Extra Virgin Olive Oil-In Emulsions Prepared by Citrus Pectin Using Green Tea and Grape Seed Phenolic Extracts and Catechin
    (Wiley, 2024) Buyuk, Miray; Yemenicioglu, Ahmet
    This study aimed at the solution of stability problems of extra virgin olive oil rich (oil:aqueous phase ratio = 50:50) model oil-in-water emulsions prepared with pectin using green tea (GTE) and grape seed extracts (GSE), and (+)-catechin (CAT). Olive oil-in-water emulsion prepared with pectin at 0.5% (w/v) without phenolics lost 36% of its stability within 1 day. GTE at 1% (w/v) caused a limited increase in emulsion stability while emulsions with GSE at >= 0.25% or CAT at 1% maintained >90% of their stability after 14 days. GSE and CAT reduced the emulsion droplet size (2.6- and 1.9-fold) while GTE increased the emulsion droplet size (1.5-fold). Emulsions with GSE showed the smallest and most densely packed lipid droplets. The highest phenolic content and antioxidant activity in emulsions were obtained with CAT followed by GSE and GTE. This work is significant in that it showed the possibility of using GSE to obtain stable extra virgin olive oil emulsion-based functional foods.
  • Article
    Citation - WoS: 76
    Citation - Scopus: 95
    Development of Flexible Zein-Wax Composite and Zein-Fatty Acid Blend Films for Controlled Release of Lysozyme
    (Elsevier Ltd., 2013) Arcan, İskender; Yemenicioğlu, Ahmet
    The aim of this study was controlled release of lysozyme by modification of hydrophobicity and morphology of zein films using composite and blend film making methods. The incorporation of beeswax, carnauba or candelilla wax into films at 5% (w/w) of zein gave composite films containing amorphous wax particles, while incorporation of oleic acid into film at 5% of zein caused formation of blend films containing many spherical zein capsules within their matrix. The lysozyme release rates of composites reduced as the melting point of waxes increased. The composites and blends showed 2.5 to 17 fold lower lysozyme release rates than controls. The films were effectively plasticized by using catechin. The catechin also provided antioxidant activity of films (up to 69 mu mol Trolox/cm(2)) and contributed to their controlled release properties by reducing film porosity. The films showed antimicrobial activity against Listeria innocua. This work showed the possibility of obtaining advanced edible films having flexibility, antimicrobial and antioxidant activity and controlled release properties.