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乳化喷雾干燥法制备戊唑醇/壳聚糖微胶囊(PDF/HTML)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2017年03期
Page:
157-161
Column:
研究论文
publishdate:
2017-05-31

Article Info:/Info

Title:
Fabrication of tebuconazole/chitosan microcapsules by the method of spray-drying
Article ID:
1000-2006(2017)03-0157-05
Author(s):
XU Peng1 WANG Liying2 CAO Xiaoyong3 SHAO Wei1TANG Jingen2*
1. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China;
2. College of Forestry, Nanjing Forestry University, Nanjing 210037, China;
3. Nanjing Institute of Supervision &
Testing on Product Quality, Nanjing 210028, China
Keywords:
chitosan tebuconazole spray drying release performance antibacterial property microcapsules
Classification number :
TQ450.45
DOI:
10.3969/j.issn.1000-2006.201608005
Document Code:
-
Abstract:
【Objective】 In this study, tebuconazole/chitosan microcapsules were prepared by the method of spray-drying. Chitosan was chosen as wall material, and tebuconazole was chosen as core material during the preparation of microcapsules. 【Methed】 The effection of the composition of emulsion(ratio of water to oil)and conditions of spray drying to the morphology of microcapsules have been discussed by scanning electron microscope(SEM), and the release of the tebuconazole/chitosan microcapsules has been researched by simulating experiment. 【Result】 The results showed that the concentration of chitosan solution, the concentration of surfactant, the compressed gas flow rate, and the feed rate all have great influence on the morphology of microcapsules. 【Conclusion】 The method of spray-drying to prepare the tebuconazole/chitosan microcapsules is simple. Tebuconazole/chitosan microcapsules with regular spherical morphology have been fabricated when Tween-80 were used as compound emulsifiers with the concentration of 1.1%(w/w), the concentration of chitosan was 1.2%(w/w), the compressed gas flow rate for spray-drying was 4 bar(400 kPa), and the feed rate for spray-drying was 10.5 m3/h. Moreover, these microcapsules showed a good-release performance and an obvious antibacterial activity against Candida albicans.

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Last Update: 2017-05-20