Fabrication and characterization of citral-loaded oil-in-water Pickering emulsions stabilized by chitosan-tripolyphosphate particles
Fabrication and characterization of citral-loaded oil-in-water Pickering emulsions stabilized by chitosan-tripolyphosphate particles
复制标题
壳聚糖-三聚磷酸盐颗粒稳定的柠檬醛水包油皮克林乳液的制备和表征
DOI：
10.1039/c8fo02002g
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发表时间：
2019
期刊：
影响因子：
6.1
通讯作者：
Hu Jing
中科院分区：
文献类型：
--
作者：
Tian Huaixiang;Lu Zhuoyan;Yu Haiyan;Chen Chen;Hu Jing
使用高剪切转子均质器，以壳聚糖-三聚磷酸盐颗粒（CS-TPP Ps）作为稳定剂制备柠檬醛负载的水包油型Pickering乳液。研究了CS-TPP Ps含量对Pickering乳液的物理和化学性质的影响，在40 °C下持续14天。采用激光衍射、光学显微镜、激光共聚焦扫描显微镜和固相微萃取-气相色谱（SPME-GC）等方法对柠檬醛负载Pickering乳液的形貌和化学稳定性进行了表征。结果表明，随着CS-TPP Ps浓度的增加，Pickering乳液的液滴粒径从14.4 μm减小到11 μm。具有0.6%w/v CS-TPP Ps的皮克林乳液的液滴尺寸在储存期间保持不变。GC说明具有0.6%w/v CS-TPP Ps的Pickering乳液显示出最好的化学稳定性，在监测14天后剩余52.33%柠檬醛。总之，柠檬醛在CS-TPP Ps Pickering乳液中的包封增强了其在酸性环境中的化学稳定性。
Citral-loaded oil-in-water Pickering emulsions were fabricated with chitosan-tripolyphosphate particles (CS-TPP Ps) as stabilizers using a high-shear rotor homogenizer. The influence of the contents of CS-TPP Ps on the physical and chemical properties of the Pickering emulsions was investigated at 40 °C for 14 days. The morphology and chemical stability of the citral-loaded Pickering emulsions were determined by laser diffraction, optical microscopy, confocal laser scanning microscopy and solid-phase microextraction-gas chromatography (SPME-GC). Results showed that the droplet size of the Pickering emulsions decreased from 14.4 to 11 μm as the concentration of CS-TPP Ps increased. The droplet size of the Pickering emulsion with 0.6% w/v CS-TPP Ps remained unchanged during storage. GC illustrated that the Pickering emulsion with 0.6% w/v CS-TPP Ps showed the best chemical stability, with 52.33% citral remaining after 14 days of monitoring. Overall, the encapsulation of citral in CS-TPP Ps Pickering emulsions enhanced its chemical stability in acidic surroundings.