Raphael Bar
Hebrew University of Jerusalem
30 Papers
609 Citations
Raphael Bar is an academic researcher from Hebrew University of Jerusalem. The author has contributed to research in topics: Catalysis & Aqueous solution. The author has an hindex of 15, co-authored 30 publications.
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Papers
Microbial transformations in a cyclodextrin medium. Part 2. Reduction of androstenedione to testosterone by Saccharomyces cerevisiae
TL;DR: A mechanism whereby CDs reduce the effective inhibitory concentrations of substrate and product as well as facilitate transport of the complexed substrate through the yeast cell wall has been suggested for the CD-promoted biotransformation.
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Formation of mixed crystals in microbial conversion of sterols and steroids
Ruth Goetschel,Raphael Bar +1 more
TL;DR: In this article, the formation of mixed crystals during microbial conversions involving water-insoluble substrate and product was examined through the investigation of two biotransformations: dehydrogenation of hydrocortisone by Arthrobacter simplex and oxidation of cholesterol by Rhodococcus erythropolis.
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Cyclodextrin-aided bioconversions and fermentations
TL;DR: In this paper, cyclodextrines are used in the process of fermentation and biotransformation of microorganismes in the milieux de culture ou les reactionnels permet d'ameliorer les procedes de fermentation.
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Phase transfer-catalyzed reduction of aromatic aldehydes by aqueous sodium formate in the presence of dichlorotris(triphenylphosphine)ruthenium(II): a kinetic study
TL;DR: In this paper, a linear correlation was found to exist between the concentration of the aqueous formate and the reaction rate in the presence of RuCl2(PPh3)3 and a quaternary ammonium salt.
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