Fungal cell wall production and utilization as a raw resource for textiles

• US 5,854,056 A
• Filed: 11/28/1997
• Issued: 12/29/1998
• Est. Priority Date: 11/28/1997
• Status: Expired due to Fees

• Current Assignee: William J.A. Dschida
• Original Assignee: William J.A. Dschida
• Inventors: Dschida, William J. A.
• Primary Examiner(s): Redding, David A.
• Application Number:
  US08/980,441
• Time in Patent Office: 396 Days
• Field of Search: 435/242, 435/254.1, 435/254.11, 435/254.4, 435/256.8, 162/1, 162/55, 162/91
• US Class Current: 435/254.1
• CPC Class Codes: C12N 1/14 Fungi culture of mushrooms A01G18/00; as new plants A01H15/00; Culture media therefor

Abstract

The present invention reveals a product from fungi and a method for making the product. The method involves producing spores from a filamentous fungus, producing mycelia from the spores, growing the mycelia into a flat sheet, and recovering the fungus product. The fungus product is used as a raw resource for the production of textiles.

Claims

1. A method for producing fungal pulp, comprising the steps of:

a) producing spores from a filamentous fungus;

b) producing mycelia from the spores;

c) growing the mycelia into a flat sheet,

wherein the mycelia are grown into a flat sheet by;

i) placing the mycelia into a shallow trough containing nutrient broth and

ii) allowing the mycelia to grow until filaments from adjacent mycelia intermesh; and

d) recovering the fungal pulp.

2. The method of claim 1, wherein the spores are produced on a solid medium by:

i) inoculating aqueous agar medium with asexual conidial spores,

ii) allowing the aqueous agar medium to solidify into a solid medium, and

iii) germinating and growing the spores on the solid medium in the dark.

3. The method of claim 2, wherein the mycelia are produced from spores by:

i) inoculating an aqueous nutrient broth with spores and

ii) growing the mycelia in the aqueous nutrient broth aerobically.

4. The method of claim 1, wherein the spores are produced in an aqueous medium by:

i) inoculating the aqueous medium with asexual conidial spores, and

ii) germinating and growing the spores in the aqueous medium in the dark.

5. The method of claim 1, wherein the fungal pulp is recovered by:

i) draining the nutrient broth from the shallow trough,

ii) washing the intermeshed mycelia, and

iii) drying the intermeshed mycelia.

6. The method of claim 1, wherein the filamentous fungus is selected from the group consisting of ascomycetes, basidiomycetes, deuteromycetes, oomycetes, and zygomycetes.

7. The method of claim 1, wherein the filamentous fungus is selected from the group consisting of Neurospora, Pisolithus, Poria, and Saprolegnia.

8. The method of claim 7, wherein the filamentous fungus is selected from the group consisting of Neurospora crassa, Pisolithus tinctorius, Poria olaracea, and Saprolegnia ferax.

9. The method of claim 8, wherein the filamentous fungus is Neurospora crassa.

10. A fungal pulp produced by the steps of:

a) producing spores from a filamentous fungus;

b) producing mycelia from the spores;

c) growing the mycelia into a flat sheet,

wherein the mycelia are grown into a flat sheet by;

i) placing the mycelia into a shallow trough containing nutrient broth and

ii) allowing the mycelia to grow until filaments from adjacent mycelia intermesh; and

d) recovering the fungal pulp.

11. The fungal pulp of claim 10, wherein the spores are produced on a solid medium by:

i) inoculating aqueous agar medium with asexual conidial spores,

ii) allowing the aqueous agar medium to solidify into a solid medium, and

iii) germinating and growing the spores on the solid medium in the dark.

12. The fungal pulp of claim 10, wherein the spores are produced in a liquid medium by:

i) inoculating aqueous medium with asexual conidial spores, and

ii) germinating and growing the spores in the aqueous medium in the dark.

13. The fungal pulp of claim 11, wherein the mycelia are produced from spores by:

i) inoculating an aqueous nutrient broth with spores and

ii) growing the mycelia in the aqueous nutrient broth aerobically.

14. The fungal pulp of claim 10, wherein the fungal pulp is recovered by:

i) draining the nutrient broth from the shallow trough,

ii) washing the intermeshed mycelia, and

iii) drying the intermeshed mycelia.

15. The fungal pulp of claim 10, wherein the filamentous fungus is selected from the group consisting of ascomycetes, basidiomycetes, deuteromycetes, oomycetes, and zygomycetes.

16. The fungal pulp of claim 15, wherein the filamentous fungus is selected from the group consisting of Neurospora, Pisolithus, Poria, and Saprolegnia.

17. The fungal pulp of claim 16, wherein the filamentous fungus is selected from the group consisting of Neurospora crassa, Pisolithus tinctorius, Poria olaracea, and Saprolegnia ferax.

18. The fungal pulp of claim 17, wherein the filamentous fungus is Neurospora crassa.

19. A method for producing fungal pulp, comprising the steps of:

a) producing spores from a filamentous fungus;

b) producing mycelia from the spores;

c) growing the mycelia into a flat sheet,

wherein the mycelia are grown into a flat sheet by;

i) placing the mycelia into a shallow trough containing nutrient broth and

ii) allowing the mycelia to grow until filaments from adjacent mycelia intermesh; and

d) recovering the fungal pulp, wherein the fungal pulp is recovered by;

i) draining the nutrient broth from the shallow trough,

ii) washing the intermeshed mycelia,

iii) drying the intermeshed mycelia and

iv) recovering the fungal pulp as an interwoven mat.