Bioremediation Potential of Formaldehyde by the Marine Microalga Nannochloropsis oculata ST-3 Strain
2009
Yoshida, Kosuke | Ishii, Hiroshi | Ishihara, Yoshimi | Saito, Hiroshi | Okada, Yoshihiro
The present work is intended to investigate biodegradation of formaldehyde by the marine microalga Nannochloropsis oculata ST-3 strain. Formaldehyde concentration in the medium decreased with the growth of the ST-3 strain. It is observed that the degradation of formaldehyde concentration depends on the increased cell number of the ST-3 strain. The ST-3 strain which was adapted to formaldehyde stepwise was able to tolerate to 19.9 ppm formaldehyde and degrade 99.3% of it in the medium for 22 days. Tolerance and degradation ability of formaldehyde by the ST-3 strain was improved by stepwise increasing of the formaldehyde concentration. Transformation of [¹³C]formaldehyde in the medium with the passage of incubation was monitored by using a nuclear magnetic resonance (NMR) spectrometer. Formaldehyde was transformed into formate, and these two substances degraded in the medium with the passage of incubation as clearly shown by the NMR spectrum.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил National Agricultural Library