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Preparation, characterization and rheological behavior of chitosan nanocapsule emulsion encapsulated tuberose fragrance

By Xiao Zuobing, Wang Erqin, Zhu Guangyong, Zhou Rujun and Niu Yunwei


In this paper, ionic gelation method was adopted to produce nanocapsules (CNs) encapsulated tuberose fragrance with chitosan (CS) and sodium tripolyphosphate (TPP) as wall materials. The effects of CS/TPP mass ratio, pH value of CS solution, molecular mass of CS and tuberose fragrance (TF) concentration on particle size and particle size distribution (PDI) of chitosan nanocapsules encapsulated tuberose fragrance (CNTs) were investigated systematically. CNTs were characterized by dynamic light scattering (DLS), scanning electron microscopy (SEM), Fourier transforms infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analyzer (TGA) and differential scanning calorimetry (DSC). The results showed that CNTs were successfully prepared. The optimum preparation conditions were as follows: CS/TPP mass ratio 5:1, pH of CS solution 4.0, and molecular mass of CS 150 kda. CNTs emulsions were also systematically investigated by steady-state shear and oscillatory shear measurements respectively. The rheological behaviors of CNTs were obtained

Topics: chitosan nanocapsules, encapsulation, rheological, viscoelasticity, particle size, Chemistry, QD1-999
Publisher: De Gruyter Open
Year: 2016
DOI identifier: 10.1515/pjct-2016-0021
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