Oleogels have been extensively employed for the encapsulation and protection of lipophilic nutrient.This study was investigated the effect of low ionic strength(0-100 mM)on the delivery system properties of oleogels p...Oleogels have been extensively employed for the encapsulation and protection of lipophilic nutrient.This study was investigated the effect of low ionic strength(0-100 mM)on the delivery system properties of oleogels prepared by emulsion template method using Soy protein isolate-Xanthan gum nanoparticles(SXNPs)as stabilizers.With the increase of ionic strength(0-100 mM),the particle size of SXNPs showed a trend of decreasing and then increasing.At ionic strength of 50 mM,SXNPs had the best interfacial adsorption properties(82.71±0.19%),which was attributed to the salt ions improved the surface hydrophobicity of SXNPs.Under this condition,the emulsion stabilized by SXNPs exhibited the smallest particle size(2.23μm)and the best rheological properties.Microscopic images showed that the oleogel had the densest network structure at ionic strength of 50 mM,which enhanced the retention ofβ-carotene in storage environments at 4,25 and 55℃ and oil binding capacity of oleogel(10.20%).In vitro digestion showed up to 55.17%free fatty acid release from the oleogels compared to bulk oil,highlighting their potential for controlled nutrient delivery.展开更多
基金support from the China Postdoctoral Science Foundation(2024M762440)the Project of Tianjin Science and Technology Program(24YDTPJC00960)+1 种基金Shandong Province Base and Talent Program(Postdoctoral Category)(SDCX-ZG-202400127)Project of Quanzhou Science and Technology Program(2024QZC006QR).
文摘Oleogels have been extensively employed for the encapsulation and protection of lipophilic nutrient.This study was investigated the effect of low ionic strength(0-100 mM)on the delivery system properties of oleogels prepared by emulsion template method using Soy protein isolate-Xanthan gum nanoparticles(SXNPs)as stabilizers.With the increase of ionic strength(0-100 mM),the particle size of SXNPs showed a trend of decreasing and then increasing.At ionic strength of 50 mM,SXNPs had the best interfacial adsorption properties(82.71±0.19%),which was attributed to the salt ions improved the surface hydrophobicity of SXNPs.Under this condition,the emulsion stabilized by SXNPs exhibited the smallest particle size(2.23μm)and the best rheological properties.Microscopic images showed that the oleogel had the densest network structure at ionic strength of 50 mM,which enhanced the retention ofβ-carotene in storage environments at 4,25 and 55℃ and oil binding capacity of oleogel(10.20%).In vitro digestion showed up to 55.17%free fatty acid release from the oleogels compared to bulk oil,highlighting their potential for controlled nutrient delivery.
