Formulation and characterisation of wheat bran oil-in-water nanoemulsions

Abstract

9Wheat bran oil (WBO) has been reported to have an important content of bioactive 10 compounds such as tocopherols, alkylresorcinols, steryl ferulates and other phenolic 11 compounds; however, its poor solubility in water systems restricts its applications in the food 12 industry. This study is focused on the formulation of oil-in-water (O/W) nanoemulsions of 13 WBO in order to improve the bioaccessibility of its active compounds. The influence of oil 14 concentration, surfactant type and concentration, and emulsification method, on the droplet 15 size and stability of the nanoemulsions was investigated. Response surface methodology was 16 used to optimize the conditions for preparing stable nanoemulsions with the minimum droplet 17 size. The optimal nanoemulsion was obtained when 1% of WBO and 7.3% of a surfactant 18 * Author to whom correspondence should be addressed.

Transdermal nanoemulsions of Foeniculum vulgare Mill. essential oil: Preparation, characterization and evaluation of antidiabetic potential

“…The globule size of the investigated systems, measured after dilution with (1:100) [38], shows a 235 range of 44-105 nm ( Table 2) [39]. It was also demonstrated that the higher the oil/surfactant ratio, the higher the droplet size [40].…”

“…Hence, zeta potential is an indication of repulsive forces between emulsion droplets. Large values (positive or negative) indicate difficulty of coalescence of droplets and therefore high emulsion stability [38]. Zeta potential values of NEs indicate acceptable to good stability [42].…”

Cereal bran fortified-functional foods for obesity and diabetes management: Triumphs, hurdles and possibilities

“…Fibres, lignins, oligosaccharides, polyphenols, lignans, phytic acid, minerals, alkylresorcinols, glutathione, sulphur compounds, α-linoleic acid, carotenoids, vitamin B and E have been identified as the major components. Wheat bran oil contains tocopherols, alkylresorcinols, steryl ferulates and other phenolic compounds (Rebolleda et al, 2015). It was reported that arabinoxylan oligosaccharides extracted from wheat bran constitutes a promising prebiotic nutrient in the control of obesity and related metabolic disorders.…”

The influence and optimisation of electrical parameters for enhanced coalescence under pulsed DC electric field in a cylindrical electrostatic coalescer

“…For pulsed DC electric fields, the two fundamental processes of water droplet growth are migratory coalescence and dipole coalescence (Urdahl, et al, 1996). In addition, dielectrophoresis coalescence is also important for cylindrical electrodes (Rebolleda et al, 2015) because of the non-uniform electric field.…”