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“Diffusion” of microorganisms in calcium alginate beads

✍ Scribed by Celina Quirós; Manuel Rendueles; Luis A. García; Mario Díaz

Publisher
Springer-Verlag
Year
1995
Tongue
English
Weight
743 KB
Volume
9
Category
Article
ISSN
0951-208X

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✦ Synopsis

The leakage of Serratia marcescens cells immobilised in Ca-alginate beads was quantified and the experimental values fitted to the pore diffusion model in order to obtain the biomass diffusion coefficient (a). This coefficient was then determined, resulting a value of 0.45 1O-7 cm2 s-l at the beginning of the fermentation process. The variation of this coefficient, together with the porosity of the particles (Ei), were also determined all along the process.

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✍ Dong Chen; Zbigniew Lewandowski; Frank Roe; Prasad Surapaneni 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 588 KB

A linear absorption model (LAM) is used to describe the process of metal binding to spherically shaped biopolymer particles. The LAM was solved using a numerical algorithm which calculates diffusivities of metal ions in biopolymer gels. It assumes attainment of rapid metal-biopolymer binding equilib