Microfibrillated cellulose from Argania spinosa shells as sustainable solid particles for O/W Pickering emulsions

Microfibrillated cellulose from Argania spinosa shells as sustainable solid particles for O/W Pickering emulsions

•MFC from argan shell was successfully prepared and characterized.•Stable Pickering emulsions were prepared using AS-MFC.•Low amount of AS-MFC adsorb rapidly to the oil-water interface.•Increasing AS-MFC concentration leads to the formation of a 3D network. Microfibrillated cellulose (MFC) from Arga...

Full description

Saved in:
Bibliographic Details
Published in:Carbohydrate polymers Vol. 251; p. 116990
Main Authors: Bouhoute, Meryem, Taarji, Noamane, de Oliveira Felipe, Lorena, Habibi, Youssef, Kobayashi, Isao, Zahar, Mohammed, Isoda, Hiroko, Nakajima, Mitsutoshi, Neves, Marcos A.
Format: Journal Article
Language:English
Published: England Elsevier Ltd 01-01-2021
Subjects:
Argan shell
Cellulose - chemistry
Electrolytes
Emulsions
Hydrogen-Ion Concentration
Magnetic Resonance Spectroscopy
Microfibrillated cellulose
Microscopy, Confocal
Microscopy, Electron, Transmission
Nanofibers - chemistry
Nanofibers - ultrastructure
Particle Size
Pickering emulsion
Plant Oils - chemistry
Sapotaceae - chemistry
Solid particle
Spectroscopy, Fourier Transform Infrared
Water
X-Ray Diffraction
Solid particle
Pickering emulsion
Argan shell
Microfibrillated cellulose
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•MFC from argan shell was successfully prepared and characterized.•Stable Pickering emulsions were prepared using AS-MFC.•Low amount of AS-MFC adsorb rapidly to the oil-water interface.•Increasing AS-MFC concentration leads to the formation of a 3D network. Microfibrillated cellulose (MFC) from Argan (Argania spinosa) shells was prepared by chemical purification of cellulose, then mechanical disintegration via high pressure homogenization was performed to isolate fibrils of cellulose. Chemical characterization of raw argan shell (AS-R), purified cellulose (AS-C), and argan shell MFC (AS-MFC) included FT-IR, XRD and NMR. Morphological characterization of AS-MFC was assessed using TEM. Next, the use of AS-MFC as oil-in-water (O/W) emulsions stabilizer was investigated. The particle concentration was observed to affect the long-term stability of the emulsions; high concentrations (0.5–1 % w/w) of AS-MFC resulted in emulsions that were thermodynamically stable during 15 days of storage, which was demonstrated by the droplet’s size evolution. The suitable oil concentration for a maximum volume of emulsion using 1 % w/w AS-MFC was demonstrated. The results show that AS-MFC is able to stabilize 70 % w/w MCT oil without visual phase separation. Finally, CLSM shows the adsorption of AS-MFC at the oil-water interface and the formation of a 3D network surrounding oil droplets, confirming Pickering emulsion formation and stabilization.
ISSN:0144-8617
1879-1344
DOI:10.1016/j.carbpol.2020.116990