Filamentous fungal biomats, methods of their production and methods of their use
First Claim
1. A biomat comprising filamentous fungal strain MK7 (ATCC Accession Deposit No. PTA-10698, wherein the biomat is 1 mm to 30 mm thick, and wherein the biomat is produced by a surface fermentation method comprising inoculating an artificial liquid medium with a biologically pure culture of filamentous fungi comprising MK7 and incubating the inoculated filamentous fungi to produce the biomat on the surface of the liquid medium, wherein the biomat comprises at least two structurally different cell layers in contact with each other, including an upper aerial hyphae layer in contact with the atmosphere during the surface fermentation and a lower layer in contact with the liquid media during the surface fermentation, wherein the lower layer has a higher fungal density than the aerial hyphae layer.
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Abstract
A novel method of growing fungi is disclosed which uses an engineered artificial media and produces high density filamentous fungi biomats that can be harvested with a minimum of processing and from which fungal products such as antibiotics, proteins, and lipids can be isolated, the method resulting in lowered fungus cultivation costs for energy usage, oxygenation, water usage and waste stream production.
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Citations
14 Claims
- 1. A biomat comprising filamentous fungal strain MK7 (ATCC Accession Deposit No. PTA-10698, wherein the biomat is 1 mm to 30 mm thick, and wherein the biomat is produced by a surface fermentation method comprising inoculating an artificial liquid medium with a biologically pure culture of filamentous fungi comprising MK7 and incubating the inoculated filamentous fungi to produce the biomat on the surface of the liquid medium, wherein the biomat comprises at least two structurally different cell layers in contact with each other, including an upper aerial hyphae layer in contact with the atmosphere during the surface fermentation and a lower layer in contact with the liquid media during the surface fermentation, wherein the lower layer has a higher fungal density than the aerial hyphae layer.
Specification