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Open AccessReview

Interest of Pickering Emulsions for Sustainable Micro/Nanocellulose in Food and Cosmetic Applications

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Laboratoire d’Ingénierie des Biomolécules (LIBio), Université de Lorraine, 2 avenue de la Forêt de Haye, BP 20163-54505 Vandœuvre-lès-Nancy CEDEX, France
2
SAS GENIALIS Route d’Achères, 18250 Henrichemont, France
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Author to whom correspondence should be addressed.
Polymers 2020, 12(10), 2385; https://doi.org/10.3390/polym12102385
Received: 16 September 2020 / Revised: 14 October 2020 / Accepted: 15 October 2020 / Published: 16 October 2020
(This article belongs to the Special Issue Cellulose and the Circular Economy)
In the present review, natural and non-toxic particles made of micro/nanocellulose were specifically targeted as stabilizers of emulsions located at dispersed and continuous phases interfaces (called Pickering Emulsions, PEs). PEs are biphasic systems stabilized by solid particles with a recent interest in food and cosmetic domains. PEs have been more and more studied in the last ten years due to their advantages compared to conventional emulsions with surfactants. PEs have already been stabilized with various types of particles and particularly cellulose. Even if some studies showed that PEs were more stable when cellulose was chemically modified, numerous other recent studies showed that unmodified micro/nanocellulose is also promising biomaterial to stabilize PEs. Micro/nanocelluloses can be extracted by various green processes from numerous agricultural wastes and co-products, as banana peels, corncob, ginkgo seed shells, lime residues, mangosteen rind, oil palm empty fruit bunches, pistachio shells, as well as wheat straw. Main green processes used to treat cellulose are grinding, high pressure homogenization, microfluidization, enzymatic hydrolysis, subcritical water, extrusion, electron beam irradiation, cryocrushing, microwaves or sonication. PEs formulated with cellulose clearly participate to a global sustainable development but, additional studies will be necessary to better understand PEs stability and improve properties. View Full-Text
Keywords: pickering emulsion; unmodified cellulose; agricultural co-products; green processes; surfactant-free emulsion pickering emulsion; unmodified cellulose; agricultural co-products; green processes; surfactant-free emulsion
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MDPI and ACS Style

Perrin, L.; Gillet, G.; Gressin, L.; Desobry, S. Interest of Pickering Emulsions for Sustainable Micro/Nanocellulose in Food and Cosmetic Applications. Polymers 2020, 12, 2385.

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