共 50 条
Preparation of a Flower-Like Immobilized D-Psicose 3-Epimerase with Enhanced Catalytic Performance
被引:41
作者:
Zheng, Lu
[1
]
Sun, Yining
[1
]
Wang, Jing
[2
]
Huang, He
[1
]
Geng, Xin
[1
]
Tong, Yi
[3
]
Wang, Zhi
[1
]
机构:
[1] Jilin Univ, Key Lab Mol Enzymol & Engn, Minist Educ, Coll Life Sci, Changchun 130012, Jilin, Peoples R China
[2] COFCO Corp, Nutr & Hlth Res Inst, Beijing 102209, Peoples R China
[3] Jilin COFCO Biochem Co Ltd, Natl Engn Res Ctr Corn Deep Proc, Changchun 130033, Jilin, Peoples R China
来源:
关键词:
nanoflower;
immobilization;
metal-dependent enzyme;
D-psicose;
DPEase;
HYDROPHOBIC SUPPORTS;
ENZYME-ACTIVITY;
HYBRID NANOFLOWERS;
THERMAL-STABILITY;
COBALT PHOSPHATE;
D-FRUCTOSE;
LIPASES;
SYSTEM;
STABILIZATION;
TEMPERATURE;
D O I:
10.3390/catal8100468
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
In this present study, we proposed a smart biomineralization method for creating hybrid organic-inorganic nanoflowers using a Co2+-dependent enzyme (D-psicose 3-epimerase; DPEase) as the organic component and cobalt phosphate as the inorganic component. The prepared nanoflowers have many separated petals that have a nanometer size. Under optimum conditions (60 degrees C and pH of 8.5), the nanoflower can display its maximum activity (36.2 U/mg), which is about 7.2-fold higher than free DPEase. Furthermore, the immobilized DPEase presents enhanced pH and thermal stabilities. The DPEase-nanoflower maintained about 90% of its activity after six reaction cycles, highlighting its excellent reusability.
引用
收藏
页数:10
相关论文
共 50 条