Biochemical Characterization of Lipases Obtained from <i>Acinetobacter psychrotolerans</i> Strains

Cilt: 22 Sayı: 1 16 Nisan 2018
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Biochemical Characterization of Lipases Obtained from <i>Acinetobacter psychrotolerans</i> Strains

Öz

In this study, extracellular lipases obtained from Acinetobacter psychrotolerans strains (Xg1 and Xg2) were characterized. The effects of varying pH values (3.0-10.0) and various temperatures (10-90 °C) on lipase activities were examined. Also the effects of different metal ions, organic solvents and detergents on lipases were studied. The extracellular crude lipases were concentrated using ultrafiltration. Zymogram analysis of these lipases was performed. Lipases exhibited maximum activity at pH 8 and 30 °C.  While lipase obtained from the Xg1 strain exhibited the highest stability in the presence of various organic solvents, including hexane, ethyl acetate, chloroform and N,N dietil formamide, lipase obtained from the Xg2 strain was sensitive in the presence of isopropanol, acetonitrile, and butan-1-ol. The lipases of the Xg1 and Xg2 strains were inhibited in the presence of Cu2+ and Zn2+. Also, the lipase of the Xg1 strain was inhibited in the presence of Fe3+. In the presence of EDTA, the lipase activities of the Xg1 and Xg2 strains were partially inhibited. In presence of SDS, they were exactly inhibited. According to the zymogram results, the molecular weights of the lipases obtained from the Acinetobacter psychrotolerans Xg1 and Xg2 strains have been found approximately 37 and 30 kDa, respectively.

Anahtar Kelimeler

Kaynakça

  1. [1] Thakur, S. 2012. Lipases, its sources, properties and applications: A review. International Journal of Scientific and Engineering Research, 3(7), 1-29.
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  4. [4] Rubin, B., Dennis, E.A. 1997. Lipases: Part B. Enzyme characterization and utilization (Vol. 286). Academic Press, New York, 1-563p.
  5. [5] Kazlauskas, R.J., Bornscheuer, U.T. 1998. Biotransformations with lipases. In: Rehm, H.J., Pihler, G., Stadler, A., Kelly, P.J.W. (Eds.), Biotechnology, (Vol. 8), VCH, New York, 37-192 p.
  6. [6] Kamini, N.R., Fujii, T., Kurosu, T., Iefuji, H. 2000. Production, purification and characterization of an extracellular lipase from yeast, Cryptococcus sp. S-2. Process Biochemistry, 36(4), 317-324.
  7. [7] Ruchi, G., Anshu, G., Khare, S.K. 2008. Lipase from solvent tolerant Pseudomonas aeruginosa strain: Production optimization by response surface methodology and application. Bioresource Technology, 99(11), 4796-4802.
  8. [8] Shariff, F.M., Leow, T.C., Mukred, A.D., Salleh, A.B., Basri, M., Rahman, R.N.Z.R.A. Production of L2 lipase by Bacillus sp. strain L2: Nutritional and physical factors. Journal of Microbiology and Biotechnology, 47(5)(2007), 406-412.

Ayrıntılar

Birincil Dil

Türkçe

Konular

-

Bölüm

-

Yazarlar

Şule Seren Bu kişi benim

Yayımlanma Tarihi

16 Nisan 2018

Gönderilme Tarihi

20 Haziran 2017

Kabul Tarihi

-

Yayımlandığı Sayı

Yıl 2018 Cilt: 22 Sayı: 1

Kaynak Göster

APA
Katı, H., & Seren, Ş. (2018). Biochemical Characterization of Lipases Obtained from <i>Acinetobacter psychrotolerans</i> Strains. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 22(1), 7-12. https://doi.org/10.19113/sdufbed.10020
AMA
1.Katı H, Seren Ş. Biochemical Characterization of Lipases Obtained from <i>Acinetobacter psychrotolerans</i> Strains. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. 2018;22(1):7-12. doi:10.19113/sdufbed.10020
Chicago
Katı, Hatice, ve Şule Seren. 2018. “Biochemical Characterization of Lipases Obtained from <i>Acinetobacter psychrotolerans</i> Strains”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 22 (1): 7-12. https://doi.org/10.19113/sdufbed.10020.
EndNote
Katı H, Seren Ş (01 Nisan 2018) Biochemical Characterization of Lipases Obtained from <i>Acinetobacter psychrotolerans</i> Strains. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 22 1 7–12.
IEEE
[1]H. Katı ve Ş. Seren, “Biochemical Characterization of Lipases Obtained from <i>Acinetobacter psychrotolerans</i> Strains”, Süleyman Demirel Üniv. Fen Bilim. Enst. Derg., c. 22, sy 1, ss. 7–12, Nis. 2018, doi: 10.19113/sdufbed.10020.
ISNAD
Katı, Hatice - Seren, Şule. “Biochemical Characterization of Lipases Obtained from <i>Acinetobacter psychrotolerans</i> Strains”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi 22/1 (01 Nisan 2018): 7-12. https://doi.org/10.19113/sdufbed.10020.
JAMA
1.Katı H, Seren Ş. Biochemical Characterization of Lipases Obtained from <i>Acinetobacter psychrotolerans</i> Strains. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. 2018;22:7–12.
MLA
Katı, Hatice, ve Şule Seren. “Biochemical Characterization of Lipases Obtained from <i>Acinetobacter psychrotolerans</i> Strains”. Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, c. 22, sy 1, Nisan 2018, ss. 7-12, doi:10.19113/sdufbed.10020.
Vancouver
1.Hatice Katı, Şule Seren. Biochemical Characterization of Lipases Obtained from <i>Acinetobacter psychrotolerans</i> Strains. Süleyman Demirel Üniv. Fen Bilim. Enst. Derg. 01 Nisan 2018;22(1):7-12. doi:10.19113/sdufbed.10020

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