Increased homogeneity of mycological biopolymer grown into void space
The method of growing a biopolymer material employs incubation of a growth media comprised of nutritive substrate and a fungus in containers that are placed in a closed incubation chamber with air flows passed over each container while the chamber is maintained with a predetermined environment of humidity, temperature, carbon dioxide and oxygen. The air flows may be directed parallel or perpendicularly to the surfaces of the growth media.
1. A method of growing a biopolymer material comprising the steps of:
providing a plurality of containers, each said container defining a cavity containing a growth media comprising nutritive substrate and a fungus;
placing said plurality of containers in a closed incubation chamber;
maintaining said closed incubation chamber with a predetermined environment of humidity, temperature, carbon dioxide content and oxygen content sufficient to produce a mycelium biopolymer consisting essentially of fungal mycelium;
directing flows of air containing said carbon dioxide content through said incubation chamber;
incubating the growth media in each said container; and
passing said flows of air over the growth media in each said container;
wherein the incubating is for a period of time sufficient for said fungus to digest said nutritive substrate and produce the mycelium biopolymer consisting essentially of fungal mycelium in each said container.
2. The method of claim 1 wherein said flows of air are directed into said closed incubation chamber laterally of said containers.
3. The method of claim 2 wherein said flows of air are directed horizontally of said containers.
4. The method of claim 1 wherein said plurality of containers are stacked within said incubation chamber in a plurality of vertically spaced apart rows.
5. The method of claim 4 wherein said environment is maintained at 99% relative humidity, 5% carbon dioxide content, and a fluctuating temperature of from 85° F. to 90° F. during said step of incubating.
6. The method of claim 5 wherein said flows of air are directed into said closed incubation chamber laterally of said containers.
7. The method of claim 6 wherein said flows of air are directed horizontally of said containers.
8. The method of claim 1 wherein said flows of air are pulsed during said step of incubating.
9. The method of claim 1 wherein said flows of air contain a carbon dioxide content of at least 5% to 7% by volume.
10. The method of claim 1 , wherein the fungal mycelium comprises aerial mycelium.
11. The method of claim 10 , wherein said flows of air provide a directed force that modulates the structure of the aerial mycelium.
12. The method of claim 1 , wherein passing said flows of air over the growth media in each said container comprises passing said flows of air across the surface of the growth media in each said container.
13. The method of claim 1 , wherein the mycelium biopolymer consisting essentially of fungal mycelium is a panel of mycelium biopolymer consisting essentially of fungal mycelium.
14. The method of claim 1 , further comprising passing said flows of air over growing mycelium in each said container.
15. The method of claim 1 , wherein the containers are not outfitted with lids.
16. The method of claim 1 , further comprising distributing a mist through said incubation chamber for passage over the growth media in each said container.
17. The method of claim 16 , wherein the mist contains moisture and a solute.
18. The method of claim 16 , wherein aerial hyphae grow out of each said container during said incubation time period, and said mist is distributed at regulated amounts onto a top surface of said aerial hyphae.