Volume 42, Issue 2 pp. 414-421
Research Article

Preparation and Characterization of Taxifolin Form II by Antisolvent Recrystallization

Weiwei Wu

Weiwei Wu

Northeast Forestry University, Ministry of Education, Key Laboratory of Saline-Alkali Vegetation Ecology Restoration in Oil Field (SAVER), Alkali Soil Natural Environmental Science Center (ASNESC), Harbin Hexing Road, 150040 Harbin, Heilongjiang, China

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Lingling Wang

Lingling Wang

Northeast Forestry University, Ministry of Education, Key Laboratory of Forest Plant Ecology, Hexing Road 26, 150040 Harbin, Heilongjiang, China

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Li Wang

Li Wang

Northeast Forestry University, Ministry of Education, Key Laboratory of Forest Plant Ecology, Hexing Road 26, 150040 Harbin, Heilongjiang, China

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Yuangang Zu

Yuangang Zu

Northeast Forestry University, Ministry of Education, Key Laboratory of Forest Plant Ecology, Hexing Road 26, 150040 Harbin, Heilongjiang, China

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Lu Wang

Lu Wang

Northeast Forestry University, Ministry of Education, Key Laboratory of Forest Plant Ecology, Hexing Road 26, 150040 Harbin, Heilongjiang, China

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Yin Zhang

Yin Zhang

Northeast Forestry University, Ministry of Education, Key Laboratory of Forest Plant Ecology, Hexing Road 26, 150040 Harbin, Heilongjiang, China

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Xiuhua Zhao

Corresponding Author

Xiuhua Zhao

Northeast Forestry University, Ministry of Education, Key Laboratory of Forest Plant Ecology, Hexing Road 26, 150040 Harbin, Heilongjiang, China

Correspondence: Xiuhua Zhao ([email protected]), Northeast Forestry University, Ministry of Education, Key Laboratory of Forest Plant Ecology, Hexing Road 26, Harbin 150040, Heilongjiang, China.Search for more papers by this author
First published: 27 November 2018
Citations: 2

Abstract

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.

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