Clean fuels from bioconversion of solar energy. Annual report, 21 January 1980-20 January 1981
The study seeks to enhance glycolic acid excretion by unicellular algae. The strains of algae selected to evaluate glycolic acid accumulation in culture medium were: Chlorella pyrenoidosa (UTEX 395), Chlamydomonas reinhardtii (UTEX 89), Scenedesmus obliquus (UTEX 393), and Ankistrodesmus braunii (UTEX 245). C. pyrenoidosa and C. reinhardtii, based on the amount of glycolic acid produced, were selected for further study. Initial experiments were conducted to measure the effect of different environmental growth conditions on the rate of glycolic accumulation in defined culture medium. The most pronounced effect on glycolic acid excretion was obtained by varying the concentration of carbon dioxide in air. At 1% CO2 in air, C. pyrenoidosa accumulated 5.2 ppm glycolic acid in culture medium. Neither the pH of the culture medium nor the incubation temperature affected glycolic acid accumulation by growing C. pyrenoidosa cultures.
- Research Organization:
- Syracuse Univ. Research Corp., NY (USA)
- OSTI ID:
- 5489350
- Report Number(s):
- PB-81-227977
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALGAE
ALKANES
ANAEROBIC CONDITIONS
BACTERIA
BIOMASS
BIOMASS CONVERSION PLANTS
BIOSYNTHESIS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBOXYLIC ACIDS
CHALCOGENIDES
ENERGY SOURCES
ENZYMES
EQUIPMENT
FUELS
GLYCOLIC ACID
HYDROCARBONS
HYDROXY ACIDS
LABORATORY EQUIPMENT
METHANE
MICROORGANISMS
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLANTS
RENEWABLE ENERGY SOURCES
SYNTHESIS