Preparation and Characterization of Taxifolin FormII by Antisolvent Recrystallization

To improve the aqueous solubility and dissolution rate of taxifolin, taxifolin form II was successfully prepared through antisolvent recrystallization, in which 1‐butyl‐3‐methylimidazolium tetrafluoroborate and dichloromethane were used as solvent and antisolvent, respectively. The properties of tax...

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Bibliographic Details
Published in:Chemical engineering & technology 2019-02, Vol.42 (2), p.414-421
Main Authors: Wu, Weiwei, Wang, Lingling, Wang, Li, Zu, Yuangang, Wang, Lu, Zhang, Yin, Zhao, Xiuhua
Format: Article
Language:English
Subjects:
Bioavailability
Dichloromethane
Dissolution
Fourier transforms
Morphology
NMR spectroscopy
Organic chemistry
Recrystallization
Scanning electron microscopy
Solubility
Spectrum analysis
X-ray diffraction
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Summary:To improve the aqueous solubility and dissolution rate of taxifolin, taxifolin form II was successfully prepared through antisolvent recrystallization, in which 1‐butyl‐3‐methylimidazolium tetrafluoroborate and dichloromethane were used as solvent and antisolvent, respectively. The properties of taxifolin form II were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X‐ray diffraction, differential scanning calorimetry, solid‐state NMR spectroscopy, the dissolving capability test, and the bioavailability test. The chemical structure of taxifolin form II was not changed, but its morphology and crystalline structure changed during the recrystallization process. Moreover, taxifolin form II showed higher solubility, faster dissolution rate, and better bioavailability than taxifolin form I.
ISSN:0930-7516
1521-4125
DOI:10.1002/ceat.201800339