Multilayer body, packaging container, and food storing method
A multilayer body comprising a sealing layer (A) comprising a thermoplastic resin, an oxygen absorption layer (B) comprising a thermoplastic resin and iron powder, and an oxygen barrier layer (D) having oxygen barrier properties, the layers being laminated in a described order, wherein at least one of the sealing layer (A) and the oxygen absorption layer (B) comprises an ionomer as the thermoplastic resin.
1. A food storing method, wherein food is packed and stored in a packaging container comprising an inside and an outside,
wherein the food comprises any of a chocolate confection and edible meat containing lipid in an amount of 1% by mass or more and 50% by mass or less;
wherein the packing container comprises a multilayer body comprising a sealing layer (A) comprising a thermoplastic resin on the inside, an oxygen absorption layer (B) comprising iron powder and a thermoplastic component, the thermoplastic component consisting of a thermoplastic resin, and an oxygen barrier layer (D) having oxygen barrier properties on the outside, the layers being laminated in a described order,
wherein the thermoplastic resin of the oxygen absorption layer (B) consists of an ionomer.
2. The food storing method of claim 1 , wherein the packaging container further comprises an odor absorption layer (C) comprising a thermoplastic resin and an inorganic base between the oxygen absorption layer (B) and the oxygen barrier layer (D).
3. The food storing method of claim 2 , wherein the inorganic base is an inorganic base having calcium.
4. The storing method according to claim 1 , wherein the food has a water activity (Aw) of 0.3 or more and 1.0 or less.
5. The storing method according to claim 2 , wherein the food has a water activity (Aw) of 0.3 or more and 1.0 or less.
6. The storing method according to claim 3 , wherein the food has a water activity (Aw) of 0.3 or more and 1.0 or less.