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Lignin nanoparticles as co-stabilizers and modifiers of nanocellulose-based Pickering emulsions and foams
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- Agustin, Melissa B. (author)
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014, Helsinki, Finland; VTT Technical Research Centre of Finland Ltd., P.O. Box 1000, FI-02044, Espoo, Finland
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- Nematollahi, Neda (author)
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014, Helsinki, Finland
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- Bhattarai, Mamata (author)
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014, Helsinki, Finland; Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, 00076, Aalto, Finland
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- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, PO. Box 66, FI-00014, Helsinki, Finland; VTT Technical Research Centre of Finland Ltd., P.O. Box 1000, FI-02044, Espoo, Finland Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014, Helsinki, Finland (creator_code:org_t)
- Springer Nature, 2023
- 2023
- English.
- In: Cellulose. - : Springer Nature. - 0969-0239 .- 1572-882X. ; 30:14, s. 8955-8971
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Nanocellulose is very hydrophilic, preventing interactions with the oil phase in Pickering emulsions. This limitation is herein addressed by incorporating lignin nanoparticles (LNPs) as co-stabilizers of nanocellulose-based Pickering emulsions. LNP addition decreases the oil droplet size and slows creaming at pH 5 and 8 and with increasing LNP content. Emulsification at pH 3 and LNP cationization lead to droplet flocculation and rapid creaming. LNP application for emulsification, prior or simultaneously with nanocellulose, favors stability given the improved interactions with the oil phase. The Pickering emulsions can be freeze–dried, enabling the recovery of a solid macroporous foam that can act as adsorbent for pharmaceutical pollutants. Overall, the properties of nanocellulose-based Pickering emulsions and foams can be tailored by LNP addition. This strategy offers a unique, green approach to stabilize biphasic systems using bio-based nanomaterials without tedious and costly modification procedures.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Livsmedelsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Food Science (hsv//eng)
Keyword
- Adsorption
- Foams
- Lignin nanoparticles
- Nanocellulose
- Pharmaceutical pollutants
- Pickering emulsions
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- ref (subject category)
- art (subject category)
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