| 摘要 |
PURPOSE:To impart bacteriostatic effect, prevent or remarkably delay putrefaction of a food and make it possible to retain the freshness of the food for a long period, by spraying a mixed aqueous solution of ammonium bicarbonate and common salt together with gaseous carbon dioxide on a food. CONSTITUTION:A mixed aqueous solution of ammonium bicarbonate and common salt is heated in a steam generator 3 to generate steam. Foods 9, e.g. fresh fish, are contained in a treating chamber 8 and the above-mentioned steam 6, together with gaseous carbon dioxide, is then sprayed on the foods 9. As a result, effect on inhibition of bacterial growth, e.g. bacteriostatic effect, can be imparted to various foods to prevent or remarkably delay putrefaction of the foods and the freshness of the foods can be sustained for a long period.
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