Novel green strategy to improve the hydrophobicity of cellulose nanocrystals and the interfacial elasticity of Pickering emulsions
| Autor: | J. H. de Oliveira, M. M. de Souza Lima, Wesley Vagner Inês Shirabayashi, H. C. Rosseto, Alex Reis, F. N. C. Sobral, Lazhar Benyahia, Aldicione Gouveia Junior, F. M. B. Fernandes, Thiago Fernandes, B. L. Pelegrini, Christophe Chassenieux, Emerson Vitor Castelani |
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| Rok vydání: | 2021 |
| Předmět: |
Sapindus saponaria
Materials science Polymers and Plastics biology Biomaterial 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Sapindus biology.organism_classification 01 natural sciences Pickering emulsion 0104 chemical sciences chemistry.chemical_compound chemistry Chemical engineering Oil droplet Zeta potential Response surface methodology Cellulose 0210 nano-technology |
| Zdroj: | Cellulose. |
| ISSN: | 1572-882X 0969-0239 |
| Popis: | The development of Pickering emulsions as ecologically correct stabilized with bio-based material by substituting synthetic petroleum-derived tensoactives assumed a very attractive level, representing the current guideline of the global market for homecare industry, food and beverage applications. In this wor, cellulose nanocrystals (CNCs), a hierarchically advanced biomaterial, were produced to stabilize innovative emulsions formulated with western soapberry Sapindus saponaria L. oil (SO). Besides, green surfactants (triterpene saponins extracted from S. saponaria L. pericarp; SAP) were also investigated to stabilize the oil/water interface. The synergistic combination between cellulose nanowhiskers and the bioactive glycosides has never been reported in the literature. Dynamic interfacial tensions of SAP and SO were firstly investigated, and their capacity to form a plastic membrane at oil/water interface was revealed. Response surface methodology (RSM) was employed to study the influence of the binary systems (CNC:SAP) on the stability of emulsified systems, such as size and zeta potential. In addition, a new calculation was proposed to determine the coverage of the oil droplets formed by the mixture of cellulose crystallites and natural surfactants. The optimal nanoemulsion composition was determined to be 60 w/w (%) of water, 23.905 w/w % of SO, 5 w/w % of CNC and 8.095 w/w% of SAP to produce of smallest droplet (165.1 nm) combined with higher zeta potential module (−46.7 mV). Results highlight the potential of Sapindus saponins and cellulose nanowhiskers for efficient producing label-friendly nanoemulsions applicable for drug, cosmeceutical or edible delivery systems. |
| Databáze: | OpenAIRE |
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