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Updated: Aug 14, 2026

Extraction of Plant-based Capsules for Microencapsulation Applications
Published on: November 9, 2016
[Study on process of removing impurity from water-extraction of gutianquan-capsule]
Sheng-wei Guo1, Bao-chang Cai, Dan Li
1Nanjing University of TCM, Nanjing 210029, Jiangsu, China.
Objective:
To study the result of removing impurity from water-extraction of Gutianquan-capsule with macro-reticular absorbing resin, chitosans clarification, water-extraction and alcohol-precipitation methods.
Method:
Coefficient of Unguent of macro-reticular absorbing resin, chitosans clarification method, water-extraction and alcohol-precipitation methods were compared, and qualitative assay of Ginsenoside Rg1, Re, and snide measurement of Ginsenoside Rg1, Ferulic acid, and stability experiment were made.
Result:
Coefficient of Unguent of water-extraction and alcohol-precipitation method was 17.2%, Coefficient of Unguent of chitosans clarification method was 12.8%, and macro-reticular absorbing resin method was 3.1%. They could clarify liquor of water-extraction.
Conclusion:
Chitosans clarification method is suitable for process of Gutianquan-capsule.
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