Optimization and immobilization of urease enzyme isolated from Proteus mirabilis on alginate beads
Küçük Resim Yok
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Triveni Enterprises
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Urease enzyme was isolated from Proteus mirabilis and immobilized in alginate beads. Various parameters such as optimum pH, optimum temperature, pH stability, thermal stability, reusability, storage stability and substrate concentration were investigated and the findings were compared with free urease enzyme. immobilization yield was calculated as 85 %. Optimum temperature was found to be 40 degrees C for free and immobilized urease. Thermal stability of the immobilized urease enzyme was significantly better than the free enzyme. Optimum pH for free and immobilized urease was be 7.0. Immobilized and free urease enzymes protected their stability at pH 7.0 and 8.0 in a similar way. Immobilized enzyme maintained 55% of their initial activity after 12 repeated use of enzyme. It was found that storage stability of immobilized enzyme was better than that of free enzyme. K-m and V-max values from the Lineweaver-Burk plots were calculated.
Açıklama
Anahtar Kelimeler
Alginate, Immobilization, Proteus Mirabilis, Urease, Alpha-Amylase
Kaynak
Journal Of Environmental Biology
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
40
Sayı
5
