Parameters optimization for enzymatic assays using experimental design

Bibliographic Details
Main Author: Burkert, Janaina Fernandes de Medeiros
Publication Date: 2006
Other Authors: Kalil, Susana Juliano, Maugeri Filho, Francisco, Rodrigues, Maria Isabel
Format: Article
Language: eng
Source: Repositório Institucional da FURG (RI FURG)
Download full: http://repositorio.furg.br/handle/1/4575
Summary: The conditions for maximization enzymatic activity were determined using experimental design and inulinase from Kluyveromyces marxianus ATCC 16045. The effects of substrate concentration (sucrose and inulin), pH and temperature on inulinase activity were verified using four factorial design and surface response analysis. Using sucrose as substrate. It has bean shown that the effects sucrose on enzymatic activity is not statistically significant and the best condition for the highest activity (110 U/mL) was achieved with temperature between 60°C and 68°C and pH between 4.5 and 5.0. Using inulin as substrate it was verified that temperature is the only variable statistically significant and the maximum activity was 7.3 U/mL at temperature between 50°C and 51°C.