Method for improving polarity of flavonoid glycoside |
Title： |
| Method for improving polarity of flavonoid glycoside |
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Application Number： |
200510068343 |
Application Date： |
2005/05/08 |
Announcement Date： |
2005/11/30 |
Pub. Date： |
2007/03/14 |
Publication Number： |
1702174 |
Announcement Number： |
1304591 |
Grant Date： |
2007-3-14 |
Granted Pub. Date： |
2007-3-14 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
C12P 19/60 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Luo Mingfang, Xing Xinhui, Xu Mingshu |
Key Words： |
improve, flavonoid glycoside, polarity |
Abstract： |
The present invention discloses a method for improving polarity of flavonoid glycoside reacting flavone aglycon, glucosyltransferase and sugarsubstrate in ethanol water solution with 0-90% thickness. The weight volume ratio of said flavone aglycon and ethanol water solution is 0.03-0.07g/100ml. said reacting temperature is 20-90 DEG C, the reacting time is 1-30 hours. The invention can apparently improve the water-solubility of flavone aglycon such as quercetin and naphthol, which are easily dissolved by polar solvent such as water or ethanol in industry production, the quercetin glucoside and the naphthol glucoside as medical production, comparing with the quercetin and naphthol, are easily to be used by organism; the invention also can improve the extracting ratio of flavonoid in natural product which reduces the ethanol using quantity in the extracting process; in addition, the invention also can improve the processability of total flavone and pure total flavone product, mean time expand its practical application range. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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