PROBLEM TO BE SOLVED: To provide a surface electrode and a negative charge dominant space by positively using the functions of wood charcoal or bamboo charcoal, without depending on the material constituting the facilities or devices in the manufacturing or processing step of a food product or food material.SOLUTION: A coating material 2a having graphitized wood charcoal or bamboo charcoal as a main component is applied to a ceramic sheet 21 in an amount of application to have an ohmic value of 3±1 kilo-ohm(KΩ) so as to form a surface electrode 2. The side not having the coating material 2a of the surface electrode 2 is attached in contact with a wall part 11 and a ceiling part 12 of housing cabinets 1a and 1b and chamber 12a. A direct current negative voltage of -70 to -100 V is applied to the surface electrode 2 (coating material 2a) from an energization member 3 through a cable, so that carbon in the attached surface electrode 2 is excited. Consequently, the electrons (e) in the surface electrode 2 or emitted electrons (e) create a negative charge dominant space in the housing cabinets 1a and 1b. A desired food product or food material is housed in the space so as to be manufactured or processed.COPYRIGHT: (C)2014,JPO&INPIT【課題】木炭又は竹炭の機能を積極的に活用し、食品又は食材の製造又は加工の工程における設備又は装置を構成する材料に左右されず、面電極及び負電荷優位な空間を生成する。【解決手段】グラファイト化した木炭又は竹炭を主成分とした塗料2aを抵抗値が3±1キロオーム(KΩ)となる塗布量で、セラミックシート21に塗布して面電極2を形成し、この面電極2の塗料2aが塗布されてない側を収容庫1a,1bの壁面部11及び天井部12、チャンバー12aに接するようにして取り付け、電線を通じて通電部材3から面電極2(塗料2a)へ、-70~-100ボルトの直流負電圧を加えて、取り付けられた面電極2中の炭素を励起し、面電極2の中の、若しくは放射された電子(e)により、収納庫1a,1b内に負電荷優位な空間を創りだし、この空間に所望の食品又は食材を収容し、この食品又は食材を製造又は加工する。【選択図】図1
