Autor: Esraa M. Al-Muttawa, C.O. Obuekwe
Rok vydání: 2001
Předmět:
Zdroj: Biotechnology Letters. 23:1025-1032
ISSN: 0141-5492
Popis: Two hydrocarbon-degrading bacterial isolates, an Arthrobacter sp. and a Gram-negative bacillus isolated from Kuwait oil lakes, exhibited considerable cell-surface hydrophobicity without production of exopolysaccharides in complex media. However, the bacteria produced copious amounts of exopolysaccharides in a low nutrient medium. When incubated with sawdust, Styrofoam or wheat bran, as carriers, under low nutrient conditions, stable exopolysaccharide-mediated immobilized cultures were formed. Such immobilized cultures when air-dried at room temperature survived storage for 6 weeks at 45 °C and still retained the ability to degrade hydrocarbons. Viability was retained by the immobilized Arthrobacter sp. and the Gram-negative bacterium at 45 °C storage for up to 6 and 12 months, respectively.
Databáze: OpenAIRE