Dissolution Characteristics of Freeze-Dried Pullulan Particles Affected by Solution Concentration and Freezing Medium
Dissolution Characteristics of Freeze-Dried Pullulan Particles Affected by Solution Concentration and Freezing Medium
复制标题
溶液浓度和冷冻介质对冻干普鲁兰多糖颗粒溶出特性的影响
DOI：
10.1515/ijfe-2018-0073
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发表时间：
2018-07
影响因子：
1.6
通讯作者：
Wei Tian
中科院分区：
文献类型：
--
作者：
Qing Xu;Yan Yao;Tong Zhao;Qiongqiong Shi;Zhanyong Li;Wei Tian
制备普鲁兰多糖颗粒以改善其水溶性。将浓度为5%、10%、15%或20%（w/w）的普鲁兰液滴注入并在-196 °C的液氮或-15 °C的冷空气的低温介质中冷冻，然后冷冻干燥。结果表明，无论是液氮预处理还是冷空气预处理，绝大多数干燥的普鲁兰多糖颗粒在60 s内就能完全溶解于水中。所制备的颗粒在液氮中的水溶性比在冷空气中的好.在-196 °C冷冻的颗粒具有更小和更均匀的孔结构，比表面积比在-15 °C冷冻的颗粒更大。结果表明，10%普鲁兰多糖溶液在液氮中的溶解度最大，比表面积最大（11.78m2/g）。
Pullulan particles were prepared to improve water solubility. The pullulan droplet with the concentration of 5%, 10%, 15% or 20% (w/w) was injected and frozen in the cryogenic media of liquid nitrogen at −196 °C or cold air at −15 °C, then freeze dried. The results show that most of dried pullulan particles pre-processed in either liquid nitrogen or cold air can be completely dissolved in water within 60 s. The water solubility of asprepared particles in liquid nitrogen is better than that in cold air. The particles frozen at −196 °C have smaller and more uniform pore structures together with a larger specific surface area than those frozen at −15 °C. It is found that the particles from 10% pullulan solution with liquid nitrogen have largest water solubility and also highest specific surface area (11.78 m2/g).
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影响因子：
1.6
作者：
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通讯作者：
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作者：
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10.1016/j.ijbiomac.2013.01.012
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