| 摘要 |
An alternating current voltage application apparatus of the present invention includes a treatment chamber (2) having a wall part of conductive member for accommodating a target (6); an electrode (3) provided in the treatment chamber for applying a voltage to the target; and an alternating current power source (7) in which one output terminal and the other output terminal are connected to the treatment chamber and the electrode, respectively. This alternating current voltage application apparatus applies to a target an alternating current voltage of 10V or more and 5kV or less such that current of 1 mu A or more and 1000mA or less flows. The apparatus is used in a method for suppressing oxidization of an object, e.g. coffee. <IMAGE> |
