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Construction of cellulose-based Pickering stabilizer as a novel interfacial antioxidant: A bioinspired oxygen protection strategy
Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Hubei, Peoples R China..
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Centres, Wallenberg Wood Science Center.
Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Hubei, Peoples R China..
Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Hubei, Peoples R China..
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2020 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 229, article id 115395Article in journal (Refereed) Published
Abstract [en]

Oxygen protection/isolation is imperative to prevent the lipid oxidation since oxygen molecule is an ultimate quencher in photon conversion process. Inspired by the structural buildup of seeds from oil crops, a sustainable solid particle stabilizer with novel antioxidant activity was prepared by using cellulose and polyphenol. In this work, bacterial cellulose (BC) nanofibrils modified by tea polyphenols (TPs) was prepared and used as Pickering emulsifier for the O/W emulsion. BC nanofibirls exhibited excellent adsorption capacity up to 55 mu g/mg, and the adsorption kinetics between BC and TPs were further investigated. After modification, the interfacial diffusion rate constant of BC was significantly increased to from 0.43 to 1.21 mN m(-1) s(-0.5). Moreover, the obtained O/W interfacial modulus of the dilatational elasticity was increased from 58 to 130 mN/m. Furthermore, the emulsions exhibited excellent free-radical scavenging activity at oil-water interface, suggesting a potential application in usage to extend the lifespan of the food containing polyunsaturated fats.

Place, publisher, year, edition, pages
Elsevier, 2020. Vol. 229, article id 115395
Keywords [en]
Cellulose, Polyphenols, Interfacial antioxidant, Interface, Pickering emulsion
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-268956DOI: 10.1016/j.carbpol.2019.115395ISI: 000501796600030PubMedID: 31826411Scopus ID: 2-s2.0-85072978422OAI: oai:DiVA.org:kth-268956DiVA, id: diva2:1397330
Note

QC 20200227

Available from: 2020-02-27 Created: 2020-02-27 Last updated: 2020-04-02Bibliographically approved

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