PROBLEM TO BE SOLVED: To provide a method for maintaining preservability of mushrooms after harvesting by using nitrogen ice, and prevention of deterioration of mushrooms.SOLUTION: Mushrooms such as shiitake, maitake, tamogitake, and matsutake are contained in a container or bag molded of vinylidene chloride resin or pyrrole resin or the like, having favorable shielding performance to nitrogen. In the container or bag, nitrogen ice enclosed in a container or bag of polyolefin having favorable nitrogen diffusing performance is put. Quality is thus maintained by effect of diffused nitrogen.COPYRIGHT: (C)2012,JPO&INPIT【課題】窒素氷できのこ類の採取後の保存性を維持する方法及びきのこ類の変質防止を提供する。【解決手段】しいたけ、まいたけ、たもぎたけ、まつたけなどのきのこ類を窒素遮断性の良い塩化ビニリデン樹脂、ピロール樹脂などで成形した容器、袋に収容し、その容器、袋に窒素放散性の良いポリオレフインの容器、袋に封入した窒素氷を同封して、拡散する窒素の作用で品質保持を行う。【選択図】なし
