Degradation of ferrous(II) cyanide complex ions by Pseudomonas fluorescens

Dursun, Arzu; Çalik, A.; Aksu, Zümríye

doi:10.1016/s0032-9592(99)00014-x

Cited by 68 publications

(66 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These ions bind with cya- nide and form various compounds that exhibit diff erent stability and toxicity (31,20). In this respect, diff erent concentrations of ions (0.1, 0.25 and 0.5 mM) were added into the biodegradation medium and the correlation between cyanide biodegradation and the growth of K. pneumoniae Kp2 in the presence of ions was investigated.…”

Section: Resultsmentioning

confidence: 99%

“…Aft er the incubation, absorbance of the culture was adjusted to 1.0 at λ=600 nm spectrophotometrically (UV 1700; Shimadzu, Tokyo, Japan) (3). Klebsiella culture was inoculated in the biodegradation medium (pH=7) containing (in g/L): glucose 1, K 2 HPO 4 0.5, KH 2 PO 4 0.5, MgSO 4 0.05 (20) at the volume ratio 1:10. Incubation was performed at 30 °C and 150 rpm for 5 days (Certomat BS-I; Sartorius).…”

Section: Biodegradation Mediummentioning

confidence: 99%

“…Culture supernatant was taken and sterilized by using 0.45 μM cellulose acetate fi lter (Sartorius) to obtain sterile crude extract of K. pneumoniae Kp2. Accordingly, diff erent mass per volume ratios of this sterile crude extract (10,20,30,40 and 50 %) were inoculated into the biodegradation medium separately and incubation was performed at 25 °C and 150 rpm (Certomat BS-I; Sartorius) in order to examine the biodegradation efficiency of sterile crude extract. The experiment was performed in triplicate.…”

Section: Biodegradation Of Diff Erent Cyanide Sources By K Pneumoniaementioning

confidence: 99%

See 2 more Smart Citations

Biological Treatment of Cyanide by Using Klebsiella pneumoniae Species

Avcıoğlu

Bilkay

2016

Food Technol. Biotechnol.

View full text Add to dashboard Cite

SummaryIn this study, optimization conditions for cyanide biodegradation by Klebsiella pneumoniae strain were determined to be 25 °C, pH=7 and 150 rpm at the concentration of 0.5 mM potassium cyanide in the medium. Additionally, it was found that K. pneumoniae strain is not only able to degrade potassium cyanide, but also to degrade potassium hexa cyanoferrate(II) trihydrate and sodium ferrocyanide decahydrate with the effi ciencies of 85 and 87.5 %, respectively. Furthermore, this strain degraded potassium cyanide in the presence of diff erent ions such as magnesium, nickel, cobalt, iron, chromium, arsenic and zinc, in variable concentrations (0.1, 0.25 and 0.5 mM) and as a result the amount of the bacteria in the biodegradation media decreased with the increase of ion concentration. Lastly, it was also observed that sterile crude extract of K. pneumoniae strain degraded potassium cyanide on the fi ft h day of incubation. Based on these results, it is concluded that both culture and sterile crude extract of K. pnemoniae will be used in cyanide removal from diff erent wastes.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Biodegradation Mediummentioning

confidence: 99%

Section: Biodegradation Of Diff Erent Cyanide Sources By K Pneumoniaementioning

confidence: 99%

See 1 more Smart Citation

Biological Treatment of Cyanide by Using Klebsiella pneumoniae Species

Avcıoğlu

Bilkay

2016

Food Technol. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…There are many groups of microorganism discovered which can transform simple or complex cyanide compounds, including bacteria such as Klebsiella oxytoca (Chen et al, 2008), Pseudomonas fluorescens P70 (Dursun et al, 1999), fungus such as Fusarium solani (Barclay et al, 1998), Fusarium oxysporum (Akinpelu et al, 2015) and algae such as Scenedesmus obliquus (Gurbuz et al, 2009).…”

Section: Biodegradation Mechanismmentioning

confidence: 99%

“…Therefore, supply of external carbon source is no longer needed for these bacteria. Other bacteria need glucose as carbon source for survival in presence of cyanide (Bouari, 2012;Dursun et al, 1999).…”

Section: Biodegradation Mechanismmentioning

confidence: 99%

Bioremediation of soil and water polluted by cyanide: A review

Lovasoa¹,

Karoui²,

Andrianisa³

et al. 2017

Afr. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

Cyanide

Mansfeldt

2004

Bodengefährdende Stoffe: Bewertung ‐ Stoffdaten ‐ Ökotoxikologie ‐ Sanierung

View full text Add to dashboard Cite

Cyanide (griechisch kyaneos = stahlblau; lateinisch cyanus = Kornblume) sind die Salze des farblosen Cyanwasserstoffs (HCN). Diese ist eine schwache sehr flüchtige Säure, welche eine in jedem Verhältnis mit Wasser lösliche Verbindung (Blausäure) ist. Der Name Blausäure stammt von den intensive blau gefärbten komplexen Eisensalzen wie Berliner Blau. Vom HCN leiten sich eine Vielzahl von Salzen ab. Bei einem niedrigen pH‐Wert des Bodens kann daraus vermehrt Cyanwasserstoff bzw. Blausäure gebildet werden. Die Gefahr für den Menschen besteht in der Interaktion des gebildeten HCN mit dem Hämoglobin. Es wird die Sauerstoffübertragung auf das Gewebe unterbunden. HCN ist ein Zwischenprodukt in der Chemischen Industrie. Auch werden Cyanide zur Extraktion von Silber und Gold verwendet. Die Giftigkeit von einfachen Cyaniden ist als sehr hoch einzuschätzen, komplexe Cyanide wie Eisen(II)cyanid hingegen besitzen ein geringeres Gefährdungspotenzial.

show abstract

Degradation of ferrous(II) cyanide complex ions by Pseudomonas fluorescens

Cited by 68 publications

References 8 publications

Biological Treatment of Cyanide by Using Klebsiella pneumoniae Species

Biological Treatment of Cyanide by Using Klebsiella pneumoniae Species

Bioremediation of soil and water polluted by cyanide: A review

Cyanide

Contact Info

Product

Resources

About