Mycelium Structure

Abstract

A mycelium structure according to the present disclosure includes: a mycelium material including a base portion having hyphae and a polylactic acid permeation layer in which a polylactic acid is permeated into the hyphae; and a polylactic acid coating layer provided on a surface of the polylactic acid permeation layer and thicker than the polylactic acid permeation layer. A thickness of the polylactic acid coating layer is preferably 5.0 μm or more and 100.0 μm or less. A thickness of the polylactic acid permeation layer is preferably more than 0.0 μm and 30.0 μm or less. The polylactic acid is preferably a biodegradable polylactic acid. The mycelium material preferably further includes a fiber.

What is claimed is: 
     
         1 . A mycelium structure comprising: 
 a mycelium material including a base portion having hyphae and a polylactic acid permeation layer in which a polylactic acid is permeated into the hyphae; and   a polylactic acid coating layer provided on a surface of the polylactic acid permeation layer and thicker than the polylactic acid permeation layer.   
     
     
         2 . The mycelium structure according to  claim 1 , wherein 
       a thickness of the polylactic acid coating layer is 5.0 μm or more and 100.0 μm or less. 
     
     
         3 . The mycelium structure according to  claim 1 , wherein 
       a thickness of the polylactic acid permeation layer is more than 0.0 μm and 30.0 μm or less. 
     
     
         4 . The mycelium structure according to  claim 1 , wherein 
       the polylactic acid is a biodegradable polylactic acid. 
     
     
         5 . The mycelium structure according to  claim 1 , wherein 
       the mycelium material further includes a fiber. 
     
     
         6 . The mycelium structure according to  claim 1 , wherein 
       the mycelium material contains at least one of glycerin and oil. 
     
     
         7 . The mycelium structure according to  claim 1 , wherein 
       in a stress-strain curve indicating a relationship between a stress (MPa) applied by a tensile test and a strain (%) at that time, a maximum strain in an elastic region is 4.0% or more and 40.0% or less. 
     
     
         8 . The mycelium structure according to  claim 1 , wherein 
       the mycelium material contains a mycelium formed of the hyphae connected in a three-dimensional shape. 
     
     
         9 . The mycelium structure according to  claim 1 , wherein 
       the mycelium material contains defibrated hyphae.