Abstract: The present invention is intended to provide a novel anticancer agent which is effective to a cancer. After administering an agent prepared using burdock fruit extract to a pancreas cancer patient so that a dose of arctigenin was 100 mg or more per day, the tumor reducing effect was observed, and, in addition, lowering of tumor markers was confirmed. The present invention provides an anticancer agent containing arctigenin, wherein a dose of the arctigenin is 100 mg or more per day. In addition, the present invention provides the anticancer agent containing arctigenin and arctiin at a weight ratio of arctigenin/arctiin=0.7 to 1.3.

Abstract: Provided is a thermostat with reduced temperature difference within the tank when a solution is being heat-treated. Stirring guides (114) for guiding a water-flow generated by a stirring bar (113) to both ends of a tank (106) in the longitudinal direction are disposed on the bottom of the tank (106). Thus, the water-flow generated by the stirring bar (113) is efficiently guided to both ends of the tank (106) in the longitudinal direction while keeping its momentum, and therefore a circulating water-flow for homogenizing the temperature of the water within the tank (106) can be effectively generated.

Abstract: The present invention is intended to provide a novel anticancer agent which is effective to a cancer. After administering an agent prepared using burdock fruit extract to a pancreas cancer patient so that a dose of arctigenin was 100 mg or more per day, the tumor reducing effect was observed, and, in addition, lowering of tumor markers was confirmed. The present invention provides an anticancer agent containing arctigenin, wherein a dose of the arctigenin is 100 mg or more per day. In addition, the present invention provides the anticancer agent containing arctigenin and arctiin at a weight ratio of arctigenin/arctiin=0.7 to 1.3.

Abstract: PROBLEM TO BE SOLVED The present invention is intended to provide a burdock fruit extract comprising arctigenin and arctiin at a definite ratio and a method for producing the same. More particularly, the present invention is intended to provide a method for producing a burdock fruit extract comprising arctigenin and arctiin at a weight ratio of approximately 1:1. SOLUTION A method for producing a burdock fruit extract comprising arctigenin and arctiin at a weight ratio of arctigenin/arctiin=0.7 to 1.3 is provided, including the steps of: cutting a burdock fruit and converting arctiin which is inherent in the burdock fruit into arctigenin by enzymatic conversion by beta-glucosidase which is inherent in the burdock fruit, wherein the enzymatic conversion includes reaction at a temperature from 20° C. to 50° C. Also provided is the method further including a step of extracting an extract comprising arctigenin and arctiin by adding an organic solvent and heating to reflux.

Abstract: Provided is a thermostat with reduced temperature difference within the tank when a solution is being heat-treated. Stirring guides (114) for guiding a water-flow generated by a stirring bar (113) to both ends of a tank (106) in the longitudinal direction are disposed on the bottom of the tank (106). Thus, the water-flow generated by the stirring bar (113) is efficiently guided to both ends of the tank (106) in the longitudinal direction while keeping its momentum, and therefore a circulating water-flow for homogenizing the temperature of the water within the tank (106) can be effectively generated.