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Evaluation of organic-inorganic hybrid nanoflower’s enzymatic activity in the presence of different metal ions and organic solvents    
Yazarlar (4)
Cevahir Altınkaynak
Nevşehir Hacı Bektaş Veli Üniversitesi, Türkiye
Canan Gulmez
Türkiye
Prof. Dr. Onur ATAKİŞİ Prof. Dr. Onur ATAKİŞİ
Kafkas Üniversitesi, Türkiye
Nalan Özdemir
Erciyes Üniversitesi, Türkiye
Devamını Göster
Özet
In the present study, lipase-inorganic hybrid nanoflowers (L-hNFs) have indicated to possess several novel characteristics that are significant in terms of industrial worth. In detail, we reported the production of lipase-inorganic hybrid nanoflowers in different parameters and evaluated synthesized nanoflowers' enzymatic activity in the presence of different concentrations of metal ions and organic solvents. The optimum pHs of free enzyme, L-hNFs (0.02, 0.05, and 0.1) and L-hNFs (0.03) were pH 8, 7 and 6, respectively. L-hNFs (0.05) displayed the highest enzymatic activity in high alkaline pH values (10, 11, and 12) compared to both free enzyme and other L-hNFs. While the free enzyme showed no activity at pH 12, L-hNFs (0.05) maintained 57% of their activity. The optimum temperatures of the free lipase and L-hNFs were 30 °C and 40 °C, respectively. Free lipase activity decreased with temperature while L-hNFs had higher enzyme activity at 40 °C and 50 °C. Even in the case of increasing incubation and organic solvent and metallic ion concentration in which free lipase cannot completely maintain its activity, L-hNFs were able to protect their activity. L-hNFs exhibited excellent thermal and pH stability and high resistance to metallic ions and organic solvents at various concentrations for 3 h, 6 h, and overnight. This new lipase-inorganic hybrid nanobiocatalyst may be promising in many industrial processes such as chemical, biochemical, pharmaceutical, and biotechnological ones.
Anahtar Kelimeler
Lipase-inorganic hybrid nanoflowers | Metal ions | Organic solvents | Enzymatic activities
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Dergi ISSN 0141-8130 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce
Basım Tarihi 06-2020
Cilt No 164
Sayı 1
Sayfalar 162 / 171
Doi Numarası 10.1016/j.ijbiomac.2020.07.118
Makale Linki https://www.sciencedirect.com/science/article/pii/S014181302033871X