Synergetic effects of cell immobilization in polyurethane foam and use of thermotolerant strain on degradation of mixed hydrocarbon substrate by Prototheca zopfii

Synergetic effects of cell immobilization in polyurethane foam and use of thermotolerant strain on degradation of mixed hydrocarbon substrate by Prototheca zopfii

The synergetic effects of an immobilized cell system in an oleophilic polyurethane foam (PUF) and use of a thermotolerant strain on degradation of hydrocarbons by colorless green microalga Prototheca zopfii are reported. Two strains of P. zopfii, i.e. thermotolerant RND16 and non‐thermotolerant ATCC...

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Bibliographic Details
Published in:Fisheries science Vol. 72; no. 5; pp. 1027 - 1033
Main Authors: Ueno, R.(Tokyo Univ. of Marine Science and Technology (Japan)), Wada, S, Urano, N
Format: Journal Article
Language:English
Published: Melbourne, Australia Blackwell Publishing Asia 01-10-2006
Springer Nature B.V
Subjects:
BIODEGRADACION
BIODEGRADATION
Carbon
cell adsorption
CELLS
CELLULE
CELULAS
HEAT TOLERANCE
HIDROCARBUROS
HYDROCARBONS
HYDROCARBURE
hydrophobic matrix
IMMOBILISATION
IMMOBILIZATION
INMOVILIZACION
Microalgae
POLIURETANO
Polycyclic aromatic hydrocarbons
polycyclic aromatic hydrocarbons (PAHs)
POLYURETHANE
polyurethane foam
PROTOTHECA
Prototheca zopfii
SINERGISMO
SYNERGISM
SYNERGISME
thermotolerant
TOLERANCE A LA CHALEUR
TOLERANCIA AL CALOR
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Summary:The synergetic effects of an immobilized cell system in an oleophilic polyurethane foam (PUF) and use of a thermotolerant strain on degradation of hydrocarbons by colorless green microalga Prototheca zopfii are reported. Two strains of P. zopfii, i.e. thermotolerant RND16 and non‐thermotolerant ATCC30253, were immobilized in PUF to compare their abilities to biodegrade a mixed hydrocarbon substrate (MHS) containing aliphatic and polycyclic aromatic hydrocarbons (PAHs), as a function of temperature. The thermotolerant strain RND16 degraded MHS at 35°C, while ATCC30253 did not degrade hydrocarbons at temperatures higher than 30°C. Immobilization of P. zopfii in PUF resulted in shortened lag for growth‐associated biodegradation of n‐alkanes in MHS, the effect of which was most significant in cultures of RND16 at 25°C. Nevertheless, the decrease in the amount of degraded PAHs was caused by PUF immobilization and the level of this decrease was marked in the cultures of RND16, in which rate and extent of n‐alkane degradation were higher than for ATCC30253.
Bibliography:T01
2007008514
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ISSN:0919-9268
1444-2906
DOI:10.1111/j.1444-2906.2006.01252.x