Universiti Teknologi Malaysia Institutional Repository

Determination of effective diffusion coeficient of immobilized baker's yeast invertase in various concentration of PVA-alginate matrix

Idris, Ani and Suhaimi, Mohd Suardi and Mohd Zain, Nor Azimah (2007) Determination of effective diffusion coeficient of immobilized baker's yeast invertase in various concentration of PVA-alginate matrix. In: Proceedings of the International Conference on Biotechnology Engineering (ICBioE'07), 8-10 May 2007, Kuala Lumpur.

Full text not available from this repository.

Abstract

Baker's yeast invertase is immobilizzed in PVA-alginate matrix using an improved method PVA beads were prepared by adding calcium alginate to improve its stability, mechanical and chemical properties. Boric acid was used as the cross-linking agent and additional chemicals consisteing of 10% boric acid and sodium sulphate solution was used as a treatment solution to harden the PVA-alginate beads. The determination of the effective diffusion of PVA-alginate matrix is the vital step in optimizing the preparation of immobilized and water-soluble biocatalyst. In the study the two-level full factorial design was used to investigate the effect of PVA and boric acid concentrations on diffusion coefficient.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:determination, PVA-alginate matrix
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:24444
Deposited By:INVALID USER
Deposited On:18 Apr 2012 05:39
Last Modified:02 Aug 2017 07:55

Repository Staff Only: item control page