| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for preserving the freshness of a food product, by which the freshness is highly safely preserved at a low cost. SOLUTION: This method for preserving the freshness of the food product comprises directly or indirectly allowing the reduction potentials of a gas and a liquid to act on a food material and the food product, wherein the reduction potentials of the gas and the liquid is obtained by supplying charged particles having cathode charges to the gas and the liquid. |
