Journal ArticleDOI
Diffusion of proteases in calcium alginate beads.
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TLDR
Diffusion of proteases from Bacillus subtilis and Serratia marcescens within calcium alginate beads has been assayed, and the experimental data fitted into a mathematical model for diffusion into a finite volume liquid medium.About:
This article is published in Enzyme and Microbial Technology.The article was published on 1992-07-01. It has received 55 citations till now. The article focuses on the topics: Calcium alginate.read more
Citations
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Thermostable alkaline protease from bacillus brevis and its characterization as a laundry detergent additive
TL;DR: An alkaline protease from a facultatively thermophilic and alkalophilic strain of Bacillus brevis has been studied and it could remove blood stains completely when used with detergents in the presence of Ca2+ and glycine.
Journal ArticleDOI
Glucose oxidase release from calcium alginate gel capsules.
TL;DR: It was found that an increase in the concentration of sodium alginate and calcium chloride gives rise to a reduction in the enzyme leakage, which was verified when glucose oxidase (GOD) diffusion percentages were compared in capsules with thicknesses of the same order of magnitude but obtained under different experimental conditions.
Journal ArticleDOI
Physico-chemical properties of alginate gel beads
TL;DR: In this article, the authors investigated the dynamics of the formation of alginate beads and their behavior in demineralized water and showed that the size and volume losses occurring in the'syneresis' are essentially caused by water elimination.
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Gel entrapment and micro-encapsulation: methods, applications and engineering principles
Ronnie Willaert,Gino Baron +1 more
TL;DR: In this paper, the authors propose a method to solve the problem of "uniformity" and "uncertainty" in 3.5.5 GHz frequency bands, respectively.
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Immobilization of alpha-amylase produced by Bacillus circulans GRS 313
TL;DR: In this article, a maltooligosaccharide-forming amylase from B circulans GRS 313 was immobilized by entrapment in calcium alginate beads.
References
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Journal ArticleDOI
Diffusion characteristics of substrates in Ca-alginate gel beads.
TL;DR: The diffusion characteristics of several substrates of varying molecular sizes into and from Ca‐ alginate gel beads in well‐stirred solutions were investigated and the capacity of Ca‐alginate Gel as a matrix of immobilization was discussed.
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The immobilization of microbial cells, subcellular organelles, and enzymes in calcium alginate gels
M. Kierstan,C. Bucke +1 more
TL;DR: Saccharomyces cerevisiae cells, Kluyveromyces marxianus cells, inulase, glucose oxidase, chloroplasts, and mitochondria were immobilized in calcium alginate gels.
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X-ray diffraction studies of polysaccharide sulphates: double helix models for k- and l-carrageenans.
TL;DR: In this paper, two polysaccharides have been studied which approximate in structure to alternating copolymers, (−A−B) n, in which B is a residue of β-d -galactose-4sulphate and A is an anhydrous residue of 3,6-anhydro-α-d-galactoses (κ-carrageenan).
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Physical Studies on Cell Immobilization Using Calcium Alginate Gels
TL;DR: Columns of calcium alginate gel pellets have excellent physical properties when used as a cell immobilization support and can be chosen so as to form strong pellets, possessing high substrate transfer rates and low rates of cell leakage.
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Diffusion coefficients of glucose and ethanol in cell‐free and cell‐occupied calcium alginate membranes
TL;DR: The diffusivities of glucose and ethanol in cell‐free and cell‐occupied membranes of calcium alginate were measured and agreed closely with the inverse ratio of the hydrodynamic raii for the two molecules in water, indicating that thehydrodynamic theory of diffusion in liquids may be applicable to diffusion in dilute alginates gels.