Biodegradation and bioconversion of coals by fungi. Quarterly progress report No. 2, January 1-March 31, 1986
The following activities were carried out during the 2nd quarter of the project. We tested the effects of freeze-thaw cycles and leaching on the biosolubilization of unweathered Antioch Claiborne lignite. One goal of the tests was to establish a pretreatment method by which biosolubilization could be enhanced. We have not yet been able to increase the rate of degree of biosolubilization by any single pretreatment method applied to unweathered Claiborne Antioch lignite, a type which is more resistant to bioactivity compared to weathered samples of the same coal. We continued to refine our techniques for screening fungal isolates for biosolubilization activity. Our goal is to establish a standard method which will optimize bioactivity, minimize variability, and yield reliable results for screening tests. We compared activity of different fungal isolates at 25/sup 0/ or 30/sup 0/C and tested the effects of different mycological media on degree of biosolubilization. We continued to screen approximately 120 fungal isolates for activity on three different types of lignite. We now have in unifungal culture about 25 new fungal isolates which exhibit different degees of lignite biosolubilization. Among the lignites tested, we have observed marked differences in rate and degree of biosolubilization. We have begun identification studies of the new isolates. 1 fig., 2 tabs.
- Research Organization:
- Mississippi Univ., University (USA). Dept. of Biology
- DOE Contract Number:
- FG22-85PC80913
- OSTI ID:
- 5931538
- Report Number(s):
- DOE/PC/80913-2; ON: DE86009595
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Biodegradation and bioconversions of coals by fungi: Technical report no. 5 for the period October 1, 1986-November 30, 1986
Biodegradation and bioconversions of coals by fungi. Quarterly progress report No. 4, July 1-September 30, 1986
Related Subjects
FUNGI
COMPARATIVE EVALUATIONS
LIGNITE
BIODEGRADATION
BIOCONVERSION
CANDIDA
EXPERIMENTAL DATA
FREEZING
LEACHING
PERFORMANCE TESTING
RESEARCH PROGRAMS
THAWING
WEATHERING
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
DATA
DECOMPOSITION
DISSOLUTION
ENERGY SOURCES
FOSSIL FUELS
FUELS
INFORMATION
MATERIALS
MICROORGANISMS
NUMERICAL DATA
PLANTS
SEPARATION PROCESSES
TESTING
YEASTS
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction