Alginate/cashew gum nanoparticles for essential oil encapsulation

On the use of nanotechnology-based strategies for association of complex matrices from plant extracts

“…However, this approach resulted in low association efficiency (5-25%) and loading content around 1.3-2%, as determined by UV-VIS spectroscopy. In a similar way, the association efficiency of chitosan/cashew gum (Abreu et al, 2012) and alginate/cashew gum nanoparticles (de Oliveira et al, 2014) was not very high, being around 40-70% and 21-48%, respectively.…”

Enhancing the antibacterial efficacy of isoeugenol by emulsion encapsulation

“…We used dialysis to separate released isoeugenol from encapsulated isoeugenol before spectrophotometric detection. The dialysis required 12 h incubation to reach equilibrium, and the method can therefore only confirm that all isoeugenol was released from the emulsions within 12 h. A similar method was used by de Oliveira et al (2014) and release profiles were obtained -however, there is no mention of a control and no data for a control in their study. A drawback of the spectrophotometric detection used here is that release profiles could not be measured in milk and carrot juice, and we therefore only present data for release in water.…”

Polymeric Encapsulates of Essential Oils and Their Constituents: A Review of Preparation Techniques, Characterization, and Sustainable Release Mechanisms

“…55,65,72,134 However, analysis of the particle size and surface charge of formulation usually carried out by dynamic laser scattering technique coupled with Zeta Potential analyzer. 30,33,55,134 SEM analysis facilitates the study of surface morphology of the encapsulated material while TEM helps in the exploration of micro-structural features and thickness of wall material. The study of external surface provides information about the presence of cracks and pores that decide the permeability of the materials.…”

“…The last ten years of research work on encapsulation of EOs was mainly focused on the synthesis of nanoemulsions, nanocapsules, nano/micro particles, packing films, and capsules for their application in cosmetics, drugs, food packaging, and preservatives. 1,[29][30][31][32][33][34][35][36] Encapsulations of EOs have been reported for controlled release of flavoring agents in the manufacturing of chewing gums, 37 as an antimicrobial agent and in the food packaging plastic films 38 at an industrial level. A summary of different polymers explored for encapsulation of EOs extracted from various plants or their constituents, the size of encapsulates, and formulation type are enlisted in Table 1.…”