Screening of microorganisms for biodegradation of poly(lactic acid) and lactic acid-containing polymers
Article Abstract:
The screening of 14 fungal strains for their ability to degrade poly(lactic acid) (PLA) and its polymers shows that Fusarium moniliforme is the most effective degrader. One strain of Penicillium roqueforti and two strains of F. moniliforme are capable of using DL-lactic acid and its oligomers as the sole source of carbon and energy, and assimilating the nitrogen source. One strain of F. moniliforme is able to grow on PLA-glycolic acid copolymer. Wild fungal strains are less active than the cultured fungi and can assimilate the products formed by the abiotic degradation of PLA.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Development of a method for detection of lactic acid bacteria producing exclusively the L-(+) isomer of lactic acid
Article Abstract:
The development of a method forthe direct detection and isolation of the colonies producing exclusively the L-(+) isomer of lactic acid within a population of lactic acid bacteria is discussed. An enzymatic stereospecific reaction involving D-(-) lactate hydrogenase and linked to a staining reaction is the basis of the said method. Tests involving six strains from six different lactic acid bacteria species used as reference ascertained the strain detection capacity of the method.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
Development and use of a selective medium for isolation of Leuconostoc spp. from vegetables and dairy products
Article Abstract:
Leucnostoc spp. was isolated from several natural sources and food products by a Leuconostoc selective medium (LUSM). Colonies were selected from the resulting 116 microorganisms isolated and were purified on MRS agar. Morphology, catalase production, gas production from glucose and arginine hydrolysis were examined to identify the isolates. Their sugar fermentation ability was also tested. The ablity of the LUSM medium for isolating and enumerating leuconostocs was demonstrated.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Use of filamentous cyanobacteria for biodegradation of organic pollutants. Metabolism of diethyl ether and cometabolism of methyl tert-butyl ether by a filamentous fungus, a Graphium sp
- Abstracts: Effect of humic fractions and clay on biodegradation of phenanthrene by a Pseudomonas fluorescens strain isolated from soil
- Abstracts: Degradation of polychlorinated biphenyl metabolites by naphthalene-catabolizing enzymes. Subculturing of a polychlorinated biphenyl-dechlorinating anaerobic enrichment on solid media
- Abstracts: Purification and properties of an extracellular agarase from Alteromonas sp.strain C-1. part 2 Regeneration of phosphorus and nitrogen by four species of heterotrophic nanoflagellates feeding on three nutritional states of a single bacterial strain