Recently, CNF have been reported as effective stabilizer of high
internal phase emulsion [20]. Due to the hydrophilic nature of cellulose
and the corresponding three point contact angle of CNF at
the oil/water interface, bending favors positive curvature toward
the organic phase and results in water continuous, O/W emulsions
[21]. Utilization of CNF in the manufacture of water-in-oil (W/O)
emulsions requires CNF hydrophobization [22]. Most relevant to
the present work, is consideration of nanocellulose for the stabilization
of emulsions and as replacement of typical hydrosoluble
polymers such as xanthan or guar gums. Thus, we present a surfactant
system that enables ultralow energy emulsification of soybean
oil in water-continuous emulsions using CNF to dramatically
enhance their colloidal stability