Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Fungi-derived chitosan as an emulsion stabilizer for the encapsulation of bioactives
Δημιουργός/Συγγραφέας:	Galani, Eleni Ly, Isabelle Laurichesse, Eric Zoumpopoulou, Georgia Tsakalidou, Effie Schmitt, Veronique [EL] Ξενάκης, Αριστοτέλης[EN] Xenakis, Aristotelis Chatzidaki, Maria D.
Ημερομηνία:	2024
Γλώσσα:	Αγγλικά
ISSN:	09277757
DOI:	10.1016/j.colsurfa.2023.133002
Περίληψη:	In recent years, an increasing number of industries have been embracing a more sustainable and environmentally friendly approach by adopting materials that are more eco-conscious compared to their previous choices. The food industry is at the forefront of this movement, striving to introduce novel biocompatible and biodegradable materials that can serve various purposes, such as protection agents, supplements, and carriers. Fungal chitosan (FC), has numerous characteristics, such as the lack of allergen animal proteins, consistency in physicochemical characteristics and easy production, while at the same time being an excellent emulsifier. This is why it has gained significant attention from scientists for various applications. In this study, FC particles were formulated using the pH-shifting method, while emulsions were prepared through high-shear homogenization. The emulsions were examined both macroscopically and microscopically. Their droplet size was determined using Static Light Scattering, revealing an average size of approximately 75 µm. Furthermore, α-tocopherol or squalene was successfully encapsulated in these emulsions. Cryogenic Scanning Electron Microscopy (Cryo-SEM) was utilized to visualize the surface of the droplets, and Confocal Laser Scanning Microscopy allowed for the observation of the droplet core. To assess their antioxidant properties, the 2,2-diphenyl-1-picrylhydrazyl (DPPH) colorimetric assay was employed. Additionally, their antimicrobial potency was evaluated. In the presence of the bioactive compounds, both emulsions exhibited scavenging activity against the DPPH radical, with emulsions loaded with α-tocopherol demonstrating the highest antioxidant capacity. Most importantly, all tested samples led to a reduction in the bacterial population of pathogen target bacteria Escherichia coli C1845 (E. coli) and Staphylococcus aureus DSM 21705 (S. aureus) proving they possess antimicrobial properties.
Τίτλος πηγής δημοσίευσης:	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Τόμος/Κεφάλαιο:	683
Θεματική Κατηγορία:	[EL] Βιοτεχνολογία[EN] Biotechnology [EL] Νανοτεχνολογία[EN] Nanotechnology [EL] Μικροβιολογία[EN] Microbiology [EL] Εφαρμοσμένη οπτική. Φωτονική[EN] Applied optics. Photonics
Λέξεις-Κλειδιά:	fungi-derived chitosan antioxidant antimicrobial α-tocopherol squalene
Χρηματοδότης:	European Union Greek national funds
EU Grant:	Operational Program Competitiveness, Entrepreneurship and Innovation
EU Grant identifier:	Τ2ΕΔΚ_03640
Κάτοχος πνευματικών δικαιωμάτων:	© 2023 Published by Elsevier B.V.
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://doi.org/10.1016/j.colsurfa.2023.13300
Εμφανίζεται στις συλλογές:	Ινστιτούτο Χημικής Βιολογίας - Επιστημονικό έργο