Microbial synthesis of food from coal-derived materials. [15 refs]
Recent reports on the microbial production of protein from petroleum fractions for use as human or animal food supplements prompted studies on the feasibility of producing microbial protein from coal-derived materials. Growth yields of four species of the yeast Candida on several low temperature lignite tar and Fischer--Tropach synthetic liquid fuel fractiions were compared with yields obtained on a normal paraffin fraction derived from petroleum. It was found just as feasible technically to produce microbial food material from low temperature tar and Fischer--Tropsch fractions as from petroleum-derived paraffins. Growth yields were as high as 99.8% (Fischer--Tropsch fraction), 95.2% and 84.2% (two low temperature lignite tar fractions) of the yields obtained on the petroleum-derived paraffin fraction. Similar studies on producing microbial food from coal acids, nitric acid-oxidized anthracite, and a mixture of polynuclear hydrocarbons found in relatively large amounts in high temperature coal tar revealed that these substrates did not support the growth of yeasts. However, a number of bacterial cultures grow at the expense of these materials. Determinations of growth yields are in progress.
- Research Organization:
- Bureau of Mines, Pittsburgh
- OSTI ID:
- 7212396
- Journal Information:
- Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States), Vol. 9:4; Conference: American Chemical Society, 150th national meeting, Atlantic City, NJ, USA, 12 Sep 1965; Other Information: See CONF-650902--P3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COAL TAR
CHEMICAL COMPOSITION
FOOD
BIOSYNTHESIS
ALKANES
ALKENES
CANDIDA
COMPARATIVE EVALUATIONS
LIGNITE
LIQUID FUELS
BIOMASS
BROWN COAL
CARBONACEOUS MATERIALS
COAL
ENERGY SOURCES
FOSSIL FUELS
FUELS
FUNGI
HYDROCARBONS
MICROORGANISMS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PLANTS
RENEWABLE ENERGY SOURCES
SYNTHESIS
TAR
YEASTS
010500* - Coal
Lignite
& Peat- Products & By-Products