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L-Malic acid production by polyacrylamide gel entrapped Pichia membranaefaciens
Biotechnology Letters, 1985The production of L-malic acid from fumaric acid has been achieved byPichia membraneafaciens cells entrapped in a polyacrylamide gel lattice. The reaction rate was found to be 0.15 mmoles/h/g of immobilized cells. The optimum pH for fumarase activity of immobilized cells was stable after repeated uses it increased after storing the gel pellets at 5°C ...
J. Rossi, F. Clementi
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l-Malic-acid permeation in resting cells of anaerobically grown Saccharomyces cerevisiae
Biochimica et Biophysica Acta (BBA) - Biomembranes, 1987The study of permeation of L-malic acid in cells of Saccharomyces cerevisiae at pH 3.0 was carried out with (U-14C)-labelled L-malic acid. Resting cells were used in these experiments. They were previously anaerobically grown on glucose. This study showed that this transport is the result of two competitive mechanisms, one for the uptake and one for ...
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Thermal decomposition of solid state poly(β-L-malic acid)
Journal of Thermal Analysis and Calorimetry, 2002Thermal decomposition process of solid state poly(β -L-malic acid) was traced by DSC combined with FT-IR. Melting temperature of this partially crystallized polymer was detected at 46-60°C. The thermal decomposition initiated at ca 185°C accompanied by an evolution of gaseous products.
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Industrial Production of L-Malic Acid by Immobilized Microbial Cells
1978Recently, industrial applications of immobilized microbial cells as well as immobilized enzymes have been undergoing development. In 1969, we succeeded in industrializing a process for continuous optical resolution of DL-amino acid using immobilized aminoacylase, which was prepared by ionic binding of mold aminoacylase to DEAE-Sephadex (1).
I. Chibata, T. Tosa, K. Yamamoto
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Production of L-malic acid by permeabilized yeast cells
2005L-malic acid is an important intermediate of cell metabolism. It is second most popular acidulant in the food industry and holds about 10% of this market1. Commercially it is produced by chemical synthesis via hydratation of fumaric acid that results to the racemic mixture or by the enzymatic process, which yields to the L-isomer of malic acid. In this
Vasić-Rački, Đurđa +1 more
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Poly-(L)-malic acid; A new protease inhibitor from Penicilliumcyclopium
Biochemical and Biophysical Research Communications, 1969K, Shimada +3 more
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Stereoselective Total Synthesis of Achaetolide from l-Malic Acid
Synthesis, 2011Gowravaram Sabitha +2 more
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[Automatic determination of L-malic acid].
Annales de biologie clinique, 1970H, Freund, J, Marbach, J J, Vogt
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