Method for producing extracts of Boehmeria frutescens...

Details Method for producing extracts of Boehmeria frutescens... Method for producing extracts of Boehmeria frutescens...

2004-11-29

2008-10-07

Leith, Patricia (Department: 1655)

Drug, bio-affecting and body treating compositions

Plant material or plant extract of undetermined constitution...

C424S773000, C424S774000, C424S776000, C424S780000

Reexamination Certificate

active

07431946

ABSTRACT:
A pharmaceutical mixture for the treatment of hepatitis and its preparation method are disclosed. The method includes the following steps: pulverize the plants, macerate and extract the plant with water, concentrate the aqueous extract as the first concentrate; add ethanol to form a precipitate, collect and concentrate the liquid phase to form the second concentrate, and dry it; pass the second concentrate through the resin, elute with water, water-ethanol mixture and ethanol, collect and concentrate the water-ethanol and ethanol elution fraction as the third concentrate, and dry it. The plants in the present invention areBoehmeria frutescensThunberg,Boehmeria niveaor the nettle family.

REFERENCES:
Dechow, F. Separation and Purification Techniques in Biotechnology; 1989, Noyes Publications, Park Ridge, New Jersey, pp. 416 and 418.
Nettle: Wikipedia Online: URL <http://en.wikipedia.org/wiki/Nettle> accessed Mar. 16, 2007, pp. 1-5.
Remington et al. Extracta; The Dispensatory of the United States of America, 1918, from Henriette's Herbal Pages URL <http://www.henriettesherbal.com/eclectic/usdisp/extracta.html> accessed Mar. 8, 2007, pp. 1-12 from Henriette's Herbal Pages.
Animal Models (HBV0; Trimera Disease Model Developed for Hepatitis B; Cancerweekly Plus; Atlanta; Feb. 1999 pp. 1-2.
Davis, G. Treatment of Chronic Hepatitis C; British Medical Journal; Nov. 2001 pp. 1-3.
Chun-Ching Lin et. al.;Evaluation of the hepatoprotective and antioxidant activity of Boehmeria nivea var. nivea and β Nivea var. tenacissima; 1998; Journal of Ethnopharmacology; vol. 60; pp. 9-17.

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