Rhamnolipid production by Pseudomonas aeruginosa engineered with the Vitreoscilla hemoglobin gene.
Küçük Resim Yok
Tarih
2012
Yazarlar
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Dergi ISSN
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Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The potential of Pseudomonas aeruginosa expressing the Vitreoscilla hemoglobin gene (vgb) for rhamnolipid production was studied. P. aeruginosa (NRRL B-771) and its transposon mediated vgb transferred recombinant strain, PaJC, were used in the research. The optimization of rhamnolipid production was carried out in the different conditions of cultivation (agitation rate, the composition of culture medium and temperature) in a time-course manner. The nutrient source, especially the carbon type, had a dramatic effect on rhamnolipid production. The PaJC strain and the wild type cells of P. aeruginosa started producing biosurfactant at the stationary phase and its concentration reached maximum at 24 h (838 mg/l(-1)) and at 72 h (751 mg l(-1)) of the incubation respectively. Rhamnolipid production was optimal in batch cultures when the temperature and agitation rate were controlled at 30 degrees C and 100 rpm. It reached 8373 mg l(-1) when the PaJC cells were grown in 1.0% glucose supplemented minimal media. Genetic engineering of biosurfactant producing strains with vgb may be an effective method to increase its production.
Açıklama
Anahtar Kelimeler
bacterial protein, glucose, glycolipid, hemoprotein, rhamnolipid, surfactant, Vgb protein, Bacteria, article, bacterium transformation, biosynthesis, fermentation, genetic engineering, genetics, metabolism, methodology, Pseudomonas aeruginosa, temperature, transposon, Vitreoscilla, Bacterial Proteins, DNA Transposable Elements, Fermentation, Genetic Engineering, Glucose, Glycolipids, Hemeproteins, Pseudomonas aeruginosa, Surface-Active Agents, Temperature, Transformation, Bacterial, Vitreoscilla
Kaynak
Prikladnaia biokhimiia i mikrobiologiia
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
48
Sayı
2
