Search Results - "Marison, I. W."

Submicron capsules extracted from rapeseed as novel flocculant agents for the treatment of turbid water by Tassinari, B., Doherty, S., Marison, I.W.

“…Flocculation is an important step in water treatment as it is responsible for the separation of suspended solids and colloids. The currently used flocculants…”
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Characterization of an encapsulation device for the production of monodisperse alginate beads for cell immobilization by Serp, D., Cantana, E., Heinzen, C., Von Stockar, U., Marison, I. W.

“…An encapsulation device, designed on the basis of the laminar jet break‐up technique, is characterized for cell immobilization with different types of…”
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Extractive bioconversion of 2-phenylethanol from L-phenylalanine by Saccharomyces cerevisiae by STARK, D, MÜNCH, T, SONNLEITNER, B, MARISON, I. W, VON STOCKAR, U

“…The bioconversion of L-phenylalanine (L-Phe) to 2-phenylethanol (PEA) by the yeast Saccharomyces cerevisiae is limited by the toxicity of the product. PEA…”
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Bio-sorption of atrazine in the press-cake from oilseeds by Boucher, J., Steiner, L., Marison, I.W.

“…Oilseed press-cake (PC) is proposed as a novel material for the removal of hydrophobic organic pollutants (HOPs) from water. Sorption of the pesticides…”
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Novel type of in situ extraction: Use of solvent containing microcapsules for the bioconversion of 2-phenylethanol from L-phenylalanine by Saccharomyces cerevisiae by Stark, D., Kornmann, H., Münch, T., Sonnleitner, B., Marison, I. W., von Stockar, U.

“…A novel in situ product removal (ISPR) method that uses microcapsules to extract inhibitory products from the reaction suspension is introduced into…”
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Enhancement of 2-phenylethanol productivity by Saccharomyces cerevisiae in two-phase fed-batch fermentations using solvent immobilization by Serp, D., von Stockar, U., Marison, I. W.

“…The bioconversion of L‐phenylalanine to 2‐phenylethanol by Saccharomyces cerevisiae in fed‐batch experiments has shown that concentrations of 2‐phenylethanol…”
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Inhibition aspects of the bioconversion of l-phenylalanine to 2-phenylethanol by Saccharomyces cerevisiae by Stark, D., Zala, D., Münch, T., Sonnleitner, B., Marison, I.W., von Stockar, U.

“…The inhibitory impacts of the bioconversion of l-phenylalanine ( l-Phe) to 2-phenylethanol (PEA), a very important natural aroma compound, on the metabolism of…”
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On-line determination of animal cell concentration in two industrial high-density culture processes by dielectric spectroscopy by Ducommun, P., Kadouri, A., von Stockar, U., Marison, I. W.

“…Dielectric spectroscopy was applied to two industrial high cell density culture processes and used to determine on‐line the concentration of CHO cells…”
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Sorption of hydrophobic organic compounds (HOC) in rapeseed oil bodies by Boucher, J., Cengelli, F., Trumbic, D., Marison, I.W.

“…Oil-bodies are minute plant organelles (0.5–2.0 μm diameter) consisting of an oil core surrounded by a phospholipid monolayer/proteinaceous membrane…”
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Production and characterization of liquid-core capsules made from cross-linked acrylamide copolymers for biotechnological applications by Wyss, A., von Stockar, U., Marison, I.W.

“…A novel chemistry has been developed for the production of capsules composed of a hydrophobic liquid core surrounded by a cross‐linked polyacrylamide/alginate…”
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Low-temperature electron microscopy for the study of polysaccharide ultrastructures in hydrogels. II. Effect of temperature on the structure of Ca2+-alginate beads by Serp, D., Mueller, M., von Stockar, U., Marison, I. W.

“…Calcium alginate beads were thermally treated at temperatures ranging from 25°C to 130°C for periods of up to 30 minutes. Important modifications to the…”
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Development of a large-scale biocalorimeter to monitor and control bioprocesses by Voisard, D., Pugeaud, P., Kumar, A. R., Jenny, K., Jayaraman, K., Marison, I. W., von Stockar, U.

“…Calorimetry has shown real potential at bench‐scale for chemical and biochemical processes. The aim of this work was therefore to scale‐up the system by…”
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Monitoring of temperature effects on animal cell metabolism in a packed bed process by Ducommun, P., Ruffieux, P.-A., Kadouri, A., von Stockar, U., Marison, I. W.

“…Animal cell (Chinese Hamster Ovary) concentration was determined on‐line in a packed bed process using dielectric spectroscopy. This enabled the evaluation of…”
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Microbial growth by a net heat up-take: A calorimetric and thermodynamic study on acetotrophic methanogenesis by Methanosarcina barkeri by Liu, J.-S., Marison, I. W., von Stockar, U.

“…To answer the intriguing question whether or not endothermic microbial growth exists, and in particular, to verify Heijnen and van Dijken's prediction (1992),…”
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Novel reactive perstraction system applied to the hydrolysis of penicillin G by Wyss, A., Seitert, H., von Stockar, U., Marison, I.W.

“…The activity of penicillin acylase has been studied in aqueous and organic solvents, as free enzyme as well as immobilized within the membrane of liquid‐core…”
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novel reactive perstraction system based on liquid-core microcapsules applied to lipase-catalyzed biotransformations by Wyss, A, Stockar, U. von, Marison, I.W

“…A novel reactive perstraction system has been developed based on liquid-core capsules, involving an enzyme-catalyzed reaction coupled with simultaneous in situ…”
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Immobilization of rapeseed press-cake in an alginate matrix for the sorption of atrazine by Breguet, V., Boucher, J., Pesquet, F., Vojinovic, V., von Stockar, U., Marison, I.W.

“…Due to residual oil retained within it, rapeseed press-cake has been shown to be effective for the removal of atrazine from water through an absorption…”
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The importance of ammonia in mammalian cell culture by Schneider, Markus, Marison, Ian W., von Stockar, Urs

“…Ammonia has been reported to be toxic and inhibitory for mammalian cell cultures for many years. Reduction of growth rates and maximal cell densities in batch…”
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An on-line method for the reduction of fouling of spin-filters for animal cell perfusion cultures by Vallez-Chetreanu, F., Fraisse Ferreira, L.G., Rabe, R., von Stockar, U., Marison, I.W.

“…The main limitation in the use of spin-filters during perfusion cultures of animal cells was revealed to be filter fouling. This phenomenon involves cell–sieve…”
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Low-temperature electron microscopy for the study of polysaccharide ultrastructures in hydrogels. I. Theoretical and technical considerations by Serp, D., Mueller, M., von Stockar, U., Marison, I. W.

“…The high‐pressure freezing (HPF) technique was applied to the cryo‐immobilization of alginate gels and the quality of the freezing analyzed on a TEM by…”
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