Process of obtainment of trans-resveratrol and/or emodin and...

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Reexamination Certificate

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C568S324000, C568S749000

Reexamination Certificate

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07977516

ABSTRACT:
Processes for the separation and purification of polyphenol trans-resveratrol and/or anthraquinone emodin fromPolygonum cuspidatumand/orRumex acetosa, by means of solvent selective extraction. Products obtained by this process present high level of purity; being therefore useful in the preparation of nutraceutical (pharmaceutical and/or food) compositions with antioxidant, anti-inflammatory, antiviral, cardioprotective, neuroprotective, chemoprotective activities, besides protecting against infections and ischemia, treating type 1 and 2 diabetes, reducing obesity and preventing aging. Useful phytomedicines for the same therapeutic activity and prepared from the roots and/or rhizomes ofRumex acetosaor from their fractions are also provided.

REFERENCES:
patent: 2004/0052879 (2004-03-01), Ravagnan
patent: 2005/0008664 (2005-01-01), Claxton
patent: 2006/0135797 (2006-06-01), Maggi
patent: 2159923 (1973-06-01), None
patent: WO 01/03713 (2001-01-01), None
patent: WO 2006/029893 (2006-03-01), None
Li et al., Dalian Qinggongye Xueyuan Xuebao (2005), 24(3), p. 189-191 (abstract).
Zhao et al., Zhongguo Yiyuan Yaoxue Zazhi (2006), 26(1), p. 17-18 (abstract).
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Database CAPLUS on STN, Acc. No. 1998:575341, Kumar et al., Oncogene (1998), 17(7), p. 913-918 (abstract).
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International Search Report issued in corresponding International Application No. PCT/BR2008/000028 having a filing date of Jan. 30, 2008.

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