Extraction, purification and conversion of flavonoids from plant biomass

A compound, flavonoid technology, applied in the field of extraction, purification and conversion of flavonoids from plant biomass
CN1685053AInactive Publication Date: 2005-10-19加拿大农业部
3 Cites 23 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
加拿大农业部
Publication Date
2005-10-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

A process for preparing a rutin-enriched composition from plant biomass comprises extraction with an aqueous solution, and precipitation. An enzyme preparation, such as naringinase, is used for the transformation of rutin to higher value compositions containing increased proportions of isoquercitrin and quercetin.
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Description

[0001] references

[0002] Abou-Karam, M., and Shier, W.T. 1992. Isolation and characterization of antiviral flavonoids from Waldsteinia fragarioides. J.Nat.Prod.55:1525-1527.

[0003] Agullo, G., Gamet, L., Besson, C., Demigne, C., and Remesy, C. 1994. Quercetin exerts preferential cytotoxic effects on actively dividing colon cancer HT29 and CaCa-2 cells. Cancer Letters .87:55-63.

[0004] Agullo, G., Gamet-Payrastve, L., Manenti, S., Viala, C., Remesy, C., Chap, H., and Payrastve, B. 1997. Structure of flavonoid compounds and phosphatidylinositol 3- The relationship between kinase inhibition: a comparison of tyrosine kinase and protein kinase C inhibition. Biochem. Pharmacology. 53: 1649-1657.

[0005] Anonymous. 1990a. Hayashibara Biochemistry: Assignment of high concentrations of water-soluble rutin to samples. New Technology Japan. February. 34 p.

[0006] Anonymous. 1990b. Water-soluble rutin that functions as vitamin P. Japan Report Medical Technology. Feb.

[0007] A...

Claims

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