Abstract: The present invention relates to a method for converting fustin into fisetin through the gas bubbling treatment of a solution containing fustin. Rhus verniciflua Stokes extracts having high content of Fisetin may be used as anticancer agents, anticancer and cancer prevention food products, and health functional foods due to the excellent bioactivity thereof.
Type:
Grant
Filed:
September 11, 2013
Date of Patent:
October 14, 2014
Assignee:
AZI Company Ltd.
Inventors:
Sang-Jae Park, Sung-Pil Kwon, Won-Cheol Choi
Abstract: The present invention relates to a method for converting fustin into fisetin through the gas bubbling treatment of a solution containing fustin. Rhus verniciflua Stokes extracts having high content of Fisetin may be used as anticancer agents, anticancer and cancer prevention food products, and health functional foods due to the excellent bioactivity thereof.
Type:
Application
Filed:
September 11, 2013
Publication date:
January 30, 2014
Applicant:
AZI COMPANY LTD.
Inventors:
Sang-Jae Park, Sung-Pil Kwon, Won-Cheol Choi
Abstract: The present invention relates to Rhus verniciflua Stokes extract having an increased content of an active flavonoid compound through a gas bubbling treatment, a method for preparing the Rhus verniciflua Stokes extract, and a method for converting fustin into fisetin through the gas bubbling treatment of a solution containing fustin. The method for preparing the Rhus verniciflua Stokes extract of the present invention can convert the conventional Rhus verniciflua Stokes extract having high content of fustin and low content of fisetin into a Rhus verniciflua Stokes extract having high content of fisetin. Therefore, the Rhus verniciflua Stokes extract of the present invention can be commercialized into natural anticancer agents, anticancer and cancer prevention food products, and health functional foods due to the excellent bioactivity thereof, and promote the development of relevant industries through the high added-value of Rhus verniciflua Stokes.
Type:
Grant
Filed:
December 27, 2010
Date of Patent:
October 8, 2013
Assignee:
AZI Company Ltd.
Inventors:
Sang-Jae Park, Kyung-Hee Kim, Myung-Jae Shin, Sang-Seok Lee, Byung-Sik Kang, Won-Cheol Choi, Sung-Pil Kwon
Abstract: The present invention relates to Rhus verniciflua Stokes extract having an increased content of an active flavonoid compound through a gas bubbling treatment, a method for preparing the Rhus verniciflua Stokes extract, and a method for converting fustin into fisetin through the gas bubbling treatment of a solution containing fustin. The method for preparing the Rhus verniciflua Stokes extract of the present invention can convert the conventional Rhus verniciflua Stokes extract having high content of fustin and low content of fisetin into a Rhus verniciflua Stokes extract having high content of fisetin. Therefore, the Rhus verniciflua Stokes extract of the present invention can be commercialized into natural anticancer agents, anticancer and cancer prevention food products, and health functional foods due to the excellent bioactivity thereof, and promote the development of relevant industries through the high added-value of Rhus verniciflua Stokes.
Type:
Application
Filed:
December 27, 2010
Publication date:
November 8, 2012
Applicant:
AZI COMPANY LTD.
Inventors:
Sang-Jae Park, Kyung-Hee Kim, Myung-Jae Shin, Sang-Seok Lee, Byung-Sik Kang, Won-Cheol Choi, Sung-Pil Kwon
Abstract: The present invention provides a process for preparing an extract of Rhus verniciflua by using water and organic solvents to extract active ingredients, which comprises (a) adding water or a mixture of water and alcohol as the solvent to Rhus verniciflua to extract the soluble components, then filtering the resultant product to obtain a filtrate, and concentrating and drying the filtrate to obtain a solid fraction; (b) re-extracting the solid fraction obtained in the previous step with highly purified ethanol, then filtering the resultant product to obtain a filtrate, and concentrating and drying the filtrate to obtain a solid fraction; (c) adding a saturated hydrocarbon having 5 to 7 carbon atoms to the solid fraction obtained in the previous step to dissolve allergy-inducing components, and then removing the hydrocarbon to obtain a solid fraction; and (d) adding water to the solid fraction obtained in the previous step to extract water-soluble components.
Type:
Grant
Filed:
September 8, 2005
Date of Patent:
December 8, 2009
Assignee:
AZI Company, Ltd
Inventors:
Won-Cheol Chol, Sang-Jae Park, Sung-Pil Kwon