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Emulsion Formation and Stabilization by Biomolecules: The Leading Role of Cellulose.
Mid Sweden University, Sweden.
Mid Sweden University, Sweden; University of Algarve, Portugal.
University of Algarve, Portugal.
RISE - Research Institutes of Sweden, Bioscience and Materials, Surface, Process and Formulation.
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2019 (English)In: Polymers, ISSN 2073-4360, E-ISSN 2073-4360, Vol. 11, no 10, article id E1570Article in journal (Refereed) Published
Abstract [en]

Emulsion stabilization by native cellulose has been mainly hampered because of its insolubility in water. Chemical modification is normally needed to obtain water-soluble cellulose derivatives. These modified celluloses have been widely used for a range of applications by the food, cosmetic, pharmaceutic, paint and construction industries. In most cases, the modified celluloses are used as rheology modifiers (thickeners) or as emulsifying agents. In the last decade, the structural features of cellulose have been revisited, with particular focus on its structural anisotropy (amphiphilicity) and the molecular interactions leading to its resistance to dissolution. The amphiphilic behavior of native cellulose is evidenced by its capacity to adsorb at the interface between oil and aqueous solvent solutions, thus being capable of stabilizing emulsions. In this overview, the fundamentals of emulsion formation and stabilization by biomolecules are briefly revisited before different aspects around the emerging role of cellulose as emulsion stabilizer are addressed in detail. Particular focus is given to systems stabilized by native cellulose, either molecularly-dissolved or not (Pickering-like effect).

Place, publisher, year, edition, pages
2019. Vol. 11, no 10, article id E1570
Keywords [en]
adsorption, amphiphilicity, cellulose, emulsion stability, oil–water interface
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40542DOI: 10.3390/polym11101570PubMedID: 31561633OAI: oai:DiVA.org:ri-40542DiVA, id: diva2:1362002
Available from: 2019-10-17 Created: 2019-10-17 Last updated: 2019-10-31Bibliographically approved

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